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As a posthumous tribute to the work of Miguel Ángel Morón in the taxonomy of the Melolonthidae of Mexico, an analysis of his work is presented from two of his books and an entomological exhibition that gives rise to a third book. [ABSTRACT FROM AUTHOR]

The presence of the beetle Digitonthophagus gazella (Fabricius, 1787) is reported for the first time. In addition, the range of distribution of Euoniticellus intermedius (Reiche, 1849) in El Salvador is expanded, based on information obtained from collections made over twelve years and the current distribution map of E. intermedius in the territory is presented. In addition, the current situation of both species in the country and Central America is briefly discussed. [ABSTRACT FROM AUTHOR]

The list of beetle species deposited at the Arhtropods Collection of the Facultad de Estudios Superiores Iztacala (CAFESI), UNAM, includes 10,277 specimens, grouped in five superfamilies, 15 families, 41 subfamilies, 172 genera and 570 species, of wich 231 are identified at species level and 339 at genus level and separated at morphspecies. The families Staphylinidae and Scarabaeidae represent 87.7% of the richness and 73% of the total specimens. The collection housed two holotypes of Paederinae and paratypes of three species of Paederinae and two species of Staphylininae (Staphylinidae). It has a regional geographic coverage, 96% of the species and specimens recorded come from nine states of south central region of México, mainly from Estado de México with 54.7% of the species and 41.6% of the specimens, followed by Morelos, Guerrero and Michoacán. The collection also includes 61 specimens of 11 species of Paederinae coming from Argentina, Bolivia and Brazil. Forty five percent of the species and 26% of the specimens come from the tropical deciduous forest, while 30.8% of the species and 17.6% of the specimens come from the temperate forest. [ABSTRACT FROM AUTHOR]

In this study, with the aim to provide more efficient tools for insect monitoring, we test the efficiency of pitlight traps with light-emitting diodes (LED) in captures of nocturnal Coleoptera from a tropical forest. Under the hypothesis that pitlights are more efficient and that insects would be mainly attracted by shorter and higher frequency wavelengths, families and morphospecies diversity obtained with passive pitfall and pitlight traps of three different colors (blue, white and yellow light) was compared. In addition, with the purpose to analyze the necessary time to obtain a significant sample of Coleoptera, sampling was carried out in two nocturnal periods of five hours. Captures with pitlight traps were noticeably superior to that with passive pitfalls and, even though there were no significant differences between richness, abundance and diversity values obtained for three color of LED (blue, white, yellow), not even among both nocturnal sampling periods, we found a high dissimilarity in morphospecies composition among them. Pitlight traps with LED are a simple, portable and inexpensive method able to obtain an efficient and significant capture in short time periods, so we recommend their use for the inventory of Coleoptera communities. [ABSTRACT FROM AUTHOR]

Results of field collects and the BRUCOL database, we present and illustrate 27 know bruchids species, recorded in the municipality of Zimapán, Hidalgo, México. Their host plants, new distributions, and the type of vegetation where it can be find are presented, addressing important aspects of their biology such as oviposition and voltinism. The most relevant results is a new record of the genus Abutiloneus and nine new species records to Hidalgo, México: Abutiloneus idoneus Bridwell, 1946; Acanthoscelides aequalis (Sharp, 1885), Acanthoscelides speciosus (Schaeffer, 1907); Meibomeus hidalgoi Kingsolver & Whitehead, 1976; Merobruchus porphyreus Kingsolver, 1988; Mimosestes humeralis (Gyllenhal, 1833); Mimosestes janzeni Kingsolver & Johnson, 1978; Sennius discolor (Horn, 1873) and Stator vachelliae Bottimer, 1973; two new host plants, Acacia farnesiana (L.) Willd. for M. humeralis and M. janzeni, and Senna guatemalensis (Donn. Sm.) H. S. Irwin & Barneby variety hidalgensis H. S. Irwin & Barneby for S. discolor and S. fallax; and a new host plant recorded in Mexico for Megacerus maculiventris (Fåhraeus, 1839), Ipomoea purpurea (L.) Roth. Finally, a taxonomic key is provided to identify the bruchid species. This study offers insights to the taxonomic-faunal knowledge of this group of insects and lays the basis for future studies. [ABSTRACT FROM AUTHOR]

Passalus (Mitrorhinus) nodifer sp. nov., from the extreme west of the Brazilian Amazon in the state of Acre is described and illustrated. The new species can be recognized by the head with conspicuous and strong single secondary tubercle; frontal ridges straight and well-marked; mandibles with two apical teeth; aedeagus with parameres reduced with large and rounded apical margin and basal piece with a deep V-shaped notched in the medial region. [ABSTRACT FROM AUTHOR]

Heilipus lauri Boheman is a species that affects the fruits of Persea americana Miller (Lauraceae) and is catalogued as a quarantine pest for United States market. In Colombia, it has been detected in several departments, however, its management is difficult because of the limited information about its biology and habits. With the aim of contributing to the knowledge of the biology of this species, the life cycle under laboratory conditions (21.6 ± 1.8 °C and relative humidity of 66 ± 8%) was determined and morphological description of the developmental stages for the species was carried out. The life cycle ranging from egg to adult took lasted 76.14 ± 7.31 days in average. Of these, the egg stage lasted 12.70 ± 1.87 days, the larval stage encompassed 48.68 ± 6.41 days and the pupa 14.76 ± 1.13 days. These results represent the first record of duration of the life cycle of specimens of H. lauri associated with P. americana cv. Hass in Colombia and might constitute the base for the development and implementation of integrated pest management. [ABSTRACT FROM AUTHOR]

A comparative study of Coleoptera Scarabaeoidea in the community of Calmeca, Tepexco, Puebla, Mexico is presented. Samples of beetles were taken from November 2013 to November 2014 in a place with induced pasture land with neighboring crops (SP) and a site representative of deciduous forest with secondary vegetation (SC). By mean of necrotraps, rotten fruit traps and hand collecting, 945 specimens were obtained, representing 28 species in six families of Scarabaeoidea. The SP had the highest species richness with 27 species; the most abundant species was E. intermedius (30.19%) with 257 specimens, followed by D. gazella (14.33%) with 122 specimens. In the SC the most abundant species were C. (C.) humectus (20.21%) and C. (C.) pluto (20.21%) each with 19 specimens collected. No significant differences between the two sampling sites (p = 0.111) were found. The Calmeca beetle community was grouped in eight feeding guilds. At both sites most recorded species belong to the coprophagous guild (SP 37% & SC 53%), the necrophagous guild (SP 14.8% & SC 26.6%) and the phytophagous guild (SP 18% & SC 13%). The SP had a higher functional richness with eight guilds, compared with the SC with four guilds; in the SC no species of predator, antophilous, and rhizophagus guilds were recorded. [ABSTRACT FROM AUTHOR]

The presence of three ambrosia beetle species of Xyleborus genus (Curculionidae: Scolytinae) were recorded in avocado trees (Persea americana) from Colima, México; they were Xyleborus affinis Eichhoff, X. volvulus Fabricius, and X. spinulosus Blandford. [ABSTRACT FROM AUTHOR]

In this study it was standardized and validated the nested PCR test for rapid, sensitive and reliable detection of species of the genus Xyleborus using external "primers" CI-J-2183 and TL2-N-3014 and internal primers J2210 and N2739 that amplify a band of 500 bp in the region of the gene mitochondrial Cytochrome Oxidase subunit 1(CO1). Also, DNA extraction from 26 specimens of Xyleborus was realized with kit Qiagen DNeasy ® mericom Food (DMF), not previously reported its use for their application in insects, which resulted in enough DNA and high-quality for amplification by PCR reactions. The method allowed to process a single insect by extraction, and obtain genetic material from specimens preserved in alcohol of up to eight years old. The detection limit was defined up to a concentration of 780 pg/μL. The PCR was optimized in a final volume of 15 µL without compromising quality of amplification. The standardized test allowed quality DNA, which ensured high reproducibility and sensitivity in the detection of species of Xyleborus and partial sequencing of the CO1 gene to the seven species studied; consensus sequences were analyzed by homology and deposited in the GenBank. [ABSTRACT FROM AUTHOR]

A study of the scarab beetles fauna of Huehuetitla canyon, in Tlaxcala state, Mexico is presented. Samples were obtained from August 2008 to December 2009 in Juniperus forest and secondary vegetation located at elevation of 2,600 m. We obtained 2,751 specimens than represent five families, seven subfamilies and 23 species of the following genera: Phyllophaga, Diplotaxis, Cyclocephala, Orizabus, Lygirus, Xyloryctes, Chrysina, Paranomala, Cotinis, Euphoria, Eucanthus, Labarrus, Cephalocyclus, Liothorax, Gonaphodiellus and Trox. The genus with the highest number of species was Phyllophaga (5 spp.), while Cephalocyclus fuliginosus was the most abundant specie with the 50.4% of the total sample. In addition, by mean of Parsimony Analysis of Endemism the relationship with other regional faunas is presented, where Huehuetitla canyon is grouped together with the faunas of Michilía, Durango and Villa de Allende, Estado de México. Its generic composition has a predominance of elements belonging to Paleoamerican pattern followed by elements of the Mexican Plateau. [ABSTRACT FROM AUTHOR]

A taxonomic key is presented in order to identify four bruchid species that feed on Piscidia spp. seeds: Ctenocolum janzeni Kingsolver & Whitehead, C. podagricus (Fabricius), C. pygospilotos Albuquerque & Ribeiro-Costa, and Stator monachus (Sharp); also information about the damage in seeds, host plants, and distribution, including new records are given [ABSTRACT FROM AUTHOR]

A synopsis of the 15 chromatic forms of Cotinis mutabilis (G. & P. 1833) distributed in Mexico is presented. The species is redescribed and a study by form is included, a new form zaragozai is added to the described ones. A color plate illustrating the forms is proposed; based on the study of 1,486 exemplars maps were generated by chromatic form using the Arc View program. The maximum and minimum corporal dimensions are included, the percentage of occupation and the proportional relation of each color are presented, temporal and geographical distribution by form is also included. [ABSTRACT FROM AUTHOR]

We present the first records of four species of Scarabaeinae: Canthidium pseudopuncticolle, Canthon femoralis, Uroxys deavilai and Uroxys microcularis, in El Salvador. We collected the specimens, using feces and carrion baited traps in three zones in the National Park El Imposible in the Southwest of the country. With this report, we contribute to the knowledge of the dung beetle fauna of El Salvador. [ABSTRACT FROM AUTHOR]

Passalus (Passalus) coarctatus Perdieron, 1835 was described from Brazil without precise locality data; except for its inclusion in catalogues, nothing is known of this species and only one publication has provided specific locality data. We provide precise localities for P. coarctatus in Trinidad and Tobago, Venezuela, Brazil and Bolivia, we describe the third instar larva, discuss its taxonomic status and correct errors of previous publications. [ABSTRACT FROM AUTHOR]

Phoresy is considered a non-parasitic partnership between a small animal (phoront) and a large one (host) that result in phoront transportation by the host. Throughout two years of observation and nursing of 16 family groups of the passalid Odontotaenius striatopunctatus, we noticed the presence of the pseudoscorpion Lustrochernes grossus within 11 of their 16 nests, which consisted of rotten wood logs (30 cm long x 15-20 cm in diameter) cut into 2 cm segments and secured with rubber bands to facilitate observation. The presence of pseudoscorpions became evident from the moment the passalids started building their nests creating space and food for their young. Evidence was found that pseudoscorpions can go under the elytra of passalids. Their presence did not prevent the reproduction of the beetles, performed in 13 of the 16 set nests (Fischer's exact test: P = 0.71, N = 16): neither was the number of passalids offspring modified (Mann Whitney U = 11.50, P = 0.2553). On three occasions during spring, L. grossus females carrying brood sac was documented. In this facultative relationship, phoresy and phagophilia could be involved; some hypotheses on the factors that may interfere with it are posed. [ABSTRACT FROM AUTHOR]

Collecting was done on diverse localities of seven States of Mexico from years 2010 to 2014. A total of 77 species of 50 genera were identified, from which, Onychylis texanus Burke is a new record for Mexico; furthermore several are new record for some Mexican states: Coahuila Anthonomus tenuis; Veracruz, Anthonomus fischeri, Anthonomus schwarzi, Atractomerus recessus; Jalisco, Anthonomus maltanza, Pantomorus picturatus; Guerrero, Embates ocellatus, Optatus palmaris, Rodobaenus mundus and for Michoacán, Sibinia dissipata. Some weevils are considered of economic importance for some crops: Cactophagus validirostris, Metamasius hemipterus, Rhodobaenus sanguineus, Scyphophorus acupunctatus, Rhinostomus barbirostris, Rhynchophorus palmarum, Optatus palmaris, Cylindrocopturus biradiatus, Epicaerus aurifer, E. mexicanus, Exophthalmus opulentus, Sphenophorus coesifrons, Metamasius callizona, M. hemipterus, M. sellatus and Pantomorus godmani. [ABSTRACT FROM AUTHOR]

The third instar larvae of Phyllophaga lenis (Horn, 1887) is described with specimens reared in laboratory whose progenitors were captured in agriculture field of Santa Cruz Xoxocotlán, Oaxaca. The pictures of diagnostic characters, notes on it biology and habits, comments about the differences with similar species, and a key to identify larvae of fifteen Mexican species of Phyllophaga are included. [ABSTRACT FROM AUTHOR]

This article discusses the Chilocorus cacti, a species of beetle, as a natural enemy for the red palm mite in Mexico. The authors comment on the agricultural damage done by the red palm mite worldwide and describe the first record of the beetle in Mexico in 2009. They also consider the use of this beetle instead of acaricides and other pesticides for the control of the red palm mite.

The Passalidae fauna is poorly known in the southeasternof Brazil, a region with Atlantic Forest thatincludes typical tropical phyto-physiognomies of the Brasilian coast, with distinctive geology and geography. This is the first study in seven areas of conservation of the Atlantic Forest of Southeastern Brazil, and intends to list the species of Passalinae. Actually, the diversity of Passalidae fauna from southeastern of Brazil increase to 44 species, of which 30 were collected and are accurately recorded in remnants of Atlantic Forest biome. Passalus (Pertinax) convexus Dalman, 1817, Passalus (Passalus) denticollis Kaup, 1869 and Passalus (Passalus) punctiger Lepeletier & Serville, 1825 were the most abundant, representing over 49% of individuals. Passalus (Pertinax) convexus is one of the most typical species from the Atlantic Forest biome in the Southeast. Based on a large sample of material examined from several institutions, we found 25 new locations, 11 new records for the states of Brazil and seven records to other countries in South America, promoting additions to the distribution of species in Southeast Brazil. Passalus nasutus Percheron, 1835 have new unambiguous comemmts to elucidate Passalus (Passalus) curtus Kaup, 1869, where the former species is restricted to Brazil and the latter is restricted to Colombia. [ABSTRACT FROM AUTHOR]

Peltophorus polymitus Boheman (Coleoptera: Curculionidae) is recorded for the first time attacking Agave tequilana Weber var. Azul in Jalisco and Agave cupreata Trel. & Berger and Agave angustifolia Haw., in Guerrero. The variety of damages to Agave plants caused by this weevil are described. [ABSTRACT FROM AUTHOR]

A comparative analysis of beetles of the family Scarabaeidae (sensu stricto) from "Rancho Canaletas", Paso del Macho, in central Veracruz State, Mexico, is presented. Data were obtained from january to december in 2008 in an evergreen tropical forest (SP) and a cattle grazing plot (PT), at an altitude of 500 m above sea level. Copro-necrophagous beetles were captured with traps baited with human feces or squid, and by hand in cow dung, obtaining 560 individuals from 3 families, 11 genera and 18 species. The species Canthidium céntrale (Boucomont), Canthon euryscelis (Bates), Deltochilum pseudoparile (Paulian), Deltochilum scabriusculum (Bates), Eurysternus angustulus (Harold) and Sulcophanaeus chryseicollis (Harold) are exclusive to SP, and Coprophanaeus pluto (Harold) y Omorgus rubricans (Robinson) are exclusive to PT. Species richness, diversity and abundance is higher in SP than PT; the beetle fauna in this locality can be associated with the fauna from Pipiapan, Boca del Chajul and Los Tuxtlas, from the states of Veracruz and Chiapas. [ABSTRACT FROM AUTHOR]

Within Scolytinae, one of the most important groups in tropical areas is the genus Xyleborus, recognized for their feeding habits as ambrosial beetles. In Mexico, only a few studies have been focused on the genus. Therefore the present work had the purpose a taxonomic list of species present in Mexico Xyleborus and its current distribution and hosts of the species reported. To carry out this study, scientific collections were revised; collections were performed in some localities 6 states of Mexico field and current literature on the genus revised. Species were identified with specialized taxonomic keys. In Mexico there are 18 species of Xyleborus, of which A bispinatus and X. vismiae are reported for the first time in the country; X. declivis, X. intrusus, X. horridus, X. macer and X. posticus were recorded for the first time in some Mexican states. The state where most species of the genus are reported is Veracruz with 14. The distribution of the Mexican species of Xyleborus is complemented by maps, and includes a list of hosts, according to the entomological material the literature. [ABSTRACT FROM AUTHOR]

As a continuation of the work on Canthon humectus (Say) (see Introduction), in this article we carry out a taxonomic and biogeographic study of the taxa of the humectus group of western Mexico, specifically, the mountain ranges of the state of Jalisco. In this region of rugged terrain, the Western Sierra Madre Occidental Mountain Range, the Trans-Mexican Volcanic Belt, and the Southern Sierra Madre Mountain Range converge, and there are four taxa belonging to what we here consider the humectus group. As the basis for this new taxonomic situation and the taxa that comprise it, we present a description of the humectus group and a key for all of the species and subspecies in it. Also included is the description or diagnostics of the taxa found in the mountains and on the coast of Jalisco: Canthon humectus humectus (Say), C.h. assimilis Robinson, C. riverai Halffter and Halffter st. nov. y C. occidentalis Halffter and Rivera sp. nov. The coexistence of pairs of these taxa in several localities, with no transition specimens, highlights the need to treat some of them as species separate from C. humectus, but still within the humectus group. The comparison of the degree of hybridization among taxa that occurs in the mountains of Jalisco with that which has already been studied in eastern Mexico, is thought to be the result of two historical periods of dispersal-speciation in the humectus group. This is a hypothesis, the acceptance or rejection of which will depend on comparative molecular DNA studies of the Jalisco taxa with that of eastern Mexico. [ABSTRACT FROM AUTHOR]

Specularius impressithorax is a bruchid of African origin whose displacement has been worldwide, it has been found in India, United States (Hawaii, California), and currently in Mexico. In the latter country, it has moved to several states because of its food source, that is the Erythrina's seeds, which are found abundantly in climatic zones that goes from semiarid to dry or temperate; the climate and the Erythrina species diversity found in Mexico are favorable for its establishment and the attack to new hosts. For the study of the insect life cycle, breeding was done, the number of eggs laid was recorded, as well as the time required for each developmental stage; also the polyphagy was measured by offering to it new hosts, and an exploration of parasitism in S. impressithorax, all of this at environmental temperature (18-22 ºC) and controlled temperature of 25 ºC ± 2 ºC. The results showed that S. impressithorax in the laboratory with controlled conditions undergo a decrease in the oviposition of fertile eggs in comparison to the environmental temperature where most of the eggs become fertile and reached the adult stage. Virgin insects of S. impressithorax were placed in containers where they were fed with different species of Erythrina native to Mexico and the food preferences was evaluated. It was observed that they were capable to invade new hosts, from which adults emerged. The collects were carried out where seeds infested by S. impressithorax were present, eggs of the bruchid attacked by a parasite was observed, this was identified as Uscana sp. (Hymenoptera: Trichogrammatidae); however, free adult forms could not be obtained for corroboration of the species. A second natural enemy was determined as Entedeon erythrinae Gumovsky & Ramadan (Hymenoptera: Eulophidae) that is an egg-larvae parasitoid of bruchids. Previous data show that infestation to new Erythrina hosts and the increase of its dispersion will be imminent, and that it is necessary to implement control strategies for the bruchid; biological control can be included in its management and thus prevent the deterioration of the host germplasm, which play important functions in the ecology, the ethnobotany, and science. [ABSTRACT FROM AUTHOR]

A phytophagous species inventory belonging to the family Scarabaeidae to the department of Atlantico was performed in order to update the distribution of these insects in one of the least studied departments of Colombia. Five fragments were sampled (Reserva Campesina La Montaña, RCM; Reserva Bijibana, RB; Corrales de San Luis, CSL; Distrito de Manejo Integrado Luriza, DMI Luriza; Campus Universidad del Atlántico, CUA) using light traps, traps baited with fruits and manually capture. Thirty-two species distributed in 18 genera and four subfamilies were collected. The subfamilies Rutelinae and Dynastinae were the most diverse with 11 species each one, followed by Melolonthinae with six and Cetoniinae with four. A data about the distribution of Xenopelidnota anomala in the country was obtained, and Tomarus cuniculus was registered for the first time. This represents an increasing of the generic and specific richness for the department of Atlantico, making it necessary to include environmental projects for increasing natural reservoirs, and socialization for Biodiversity care, specifically phytophagous scarab beetles belonging to the Scarabaeidae family that play important ecological roles within ecosystems [ABSTRACT FROM AUTHOR]

A faunistic study was conducted at Cerro El Diente, Tamaulipas, to contribute to the knowledge of the fauna of Chrysomelidae in Mexico. The study was conducted between March and September 2012; specimens were collected in altitudinal transects by using direct method. We analyzed six vegetation types at altitudes from 380 to 1200 meters. In total, 290 specimens were collected, belonging to 74 species of 50 genera and six subfamilies. This is one of the first studies conducted at Northeast Mexico, and includes eight new records for Tamaulipas (Babia costalisdebaja, Diplacaspis prosternalis, Chrysogramma septempunctata, Disonycha teapensis, Margaridisa atriventris, Metrioidea varicornis, Miraces aeneipennis and Acalymma flavovittatum), and one for Mexico (Malacorhinus acaciae). [ABSTRACT FROM AUTHOR]

We present a new geographical record of the giant metallic beetle, Euchroma gigantea (Buprestidae), in Córdoba, Sucre and Bolívar in the Caribbean Region of Colombia. [ABSTRACT FROM AUTHOR]

A study on Platypodinae and Scolytinae in a semi-arid area from Zapotitlán de las Salinas, Puebla, Mexico was done. Samples were taken monthly from April 1998 to March 1999 using NTP-80 carrion traps baited with squid. Conservative liquid composed of acetic acid and alcohol, served as attractant to these groups. The traps were distributed in five locations (columnar cacti, mezquite terraces, riparian mezquite, mezquite unfragmented and undisturbed vegetation). A total of 328 individuals of five species of Scolytinae and one of Platypodinae were collected. Premnobius cavipennis Eichhoff, 1878, Xyleborus posticus Eichhoff, 1869, Monarthrum pennatum Wood & Bright, 1992 and Euplatypus parallelus (Fabricius, 1801) are recorded for the first time for the state of Puebla. The greatest abundance and species richness of Curculionidae were observed on riparian mezquite, major abundance was observed at the end of the rainy season. Given the environmental degradation in the area, this study makes a contribution to the knowledge of Scolytinae and Platypodinae of Puebla, Mexico. [ABSTRACT FROM AUTHOR]

Ambliopinini beetles (Staphylinidae: Amblyopinina) are unique among staphylinids and unusual among all Coleoptera, because of their apparently obligate association with mammals. Although they were believed to be ectoparasites, the current hypothesis suggests mutualism. Nevertheless the only available research was carried out on two Central American species and it is ignored if all members of Ambliopinini have a relationship of mutual benefit. Here, I describe the relationship between the small rodent Nephelomys albigularis and its Ambliopinina beetle Amblyopinus sanborni in northern Cordillera Central de Colombia. Based on my study, a commensalism is the hypothesis that might explain the relationship between both species. [ABSTRACT FROM AUTHOR]

Se analiza críticamente una publicación extensa sobre los genitalia en diferentes grupos de Coleoptera Scarabaeinae; se subraya la necesidad de revisar las homologías de las diferentes estructuras así como de unificar la nomenclatura en una forma no arbitraria como una precondicionante para su uso en taxonomía y análisis filogenético. [ABSTRACT FROM AUTHOR]

In this study morphological characteristics of Neochetina eichhorniae (Warner, 1970) are described and illustrated. This species has been used for the Biological Control of waterhyacinth (Eichhornia crassipes (Mart.) Solms-Laubach, 1883). In the egg, the changing appearance of the chorion is given by the embryonic development. Description of larval head capsule chaetotaxy was done. Three larval instars were identified by measuring the head capsule width; microsculpture of the body larva was studied, microspines were evident with different arrangements in thorax and abdomen, two types of spiracles were found; the more distinctive was the dorsal spiracle in the abdomen, which is sclerotized, with sensory organs at its apex. The external morphology of N. eichorniae adult is very similar in both sexes, the main difference among them is the rostrum. Description of the wings, proventriculus and genitalia, important structures in the taxonomy, is provided. The morphological characteristics of N. eichhorniae found in this study can be use to separate from N. bruchi (Hustache) which has been released in many countries. This is the first morphological study of N. eichhorniae in Mexico. [ABSTRACT FROM AUTHOR]

The influence of the environmental and management factors on the white grub complex in two localities at Purhepecha Region in the state of Michoacán, Mexico was studied. Maize fields at San Felipe are under extensive management, and maize fields at Uricho are under intensive management. Four factors that could influence on the distribution of the species of Coleoptera Melolonthidae were selected: i) soil, humidity and organic matter percentage, ii) fertility management, iii) biological, abundance of 10 species, iv) temperature and precipitation in the area. One matrix with information of 25 variables and eight sites was formed for each one of two localities. The information was analyzed by Detrended Correspondence Analysis. As part of the results we found that the variables that explain the grouping of the species of white grubs at the extensive system (San Felipe) are repose with free pasturing and minimum winter temperature with 62% of probability. While intensive system (Uricho) species grouping explained with 62% probability by the application of herbicides. The second variables in importance are organic matter and soil humidity percentage at 15 centimeter depth with 68.41% of probability. [ABSTRACT FROM AUTHOR]

Results of collecting made with fluorescent light traps and by hand between April 2009 and July 2010 in two sites of Santa Cruz Xoxocotlán, Oaxaca are presented. These sites are located at 1550 m of altitude. Thirteen species were collected: Phyllophaga lenis (Horn), P. macrocera (Bates), P. nubipennis (Bates), P. parvisetis (Bates), P. cinnamomea (Blanchard), P. ravida (Blanchard), P. misteca (Bates), P. vetula (Horn), P. obsoleta (Blanchard), P. scabripyga (Bates), P. chiapensis (Chapin), P. porodera (Bates) and P. integriceps (Moser). The species group that showed a higher species richness was "anodentata". The most abundant species was P. lenis with 3107 of the 3251 specimens collected during the two years. A key for males of the 13 species is provided. Also, pictures of diagnostic structures of each species are included. [ABSTRACT FROM AUTHOR]

A list of wildlife species of Bruchidae and their host plants for the state of Morelos was performed. We recorded 25 bruchid species in 9 genera, the genus Acanthoscelides had the highest number of species with 48, followed by the genera Merobruchus, Sennius, and Amblycerus with 0 species each, and Zabrotes with 9 species. The family Leguminosae had the highest number with 58 host plants, the family Convolvulaceae ranked second with 8 species. The following plant species: Acacia mammifera Schltdl, Albizia adinocephala (Donn. SM.) BR. & Rose, Albizia guachapele (Kunth) Dugan, Bauhinia variegata L., Heliocarpus pallidus Rose, Galactia striata (Jacq.) Urb. Mimosa benthamii J.F. Macbr., Mimosa leptocarpa Rose, Mimosa orthocarpa Spruce ex Benth., Senna holwayana (Rose) H.S. Irwin & Barneby, are new records as host plants for the Bruchidae family. In relation to the biodiversity in this group in Mexico, with the information generated in this work, Morelos is currently in second place with 37. 2%, Oaxaca is the first place with 47.30%. [ABSTRACT FROM AUTHOR]

Comparative analysis of beetles of the family Melolonthidae established in rancho Canaletas, Paso del Macho, in the centre of the state of Veracruz, México is presented. Data were obtained from January to December 2008, in evergreen rain forest (SP) and plantations of sugar cane (ZA), located at 500 m altitude. By mean of light traps, rotten fruit traps and hand collecting, 557 specimens were obtained, representing 5 subfamilies, 13 genera and 42 species. Of all the species collected, 10 had exclusive distribution in SP and 16 were distributed only in ZA. The agricultural area showed higher richness (32) and abundance (422) than the evergreen forest zone (richness 26 and abundance 135). Phyllophaga temora, P. pubicollis, Paranomala inconstans, and Phalangogonia jamesonae are recorded by first time for the state of Veracruz. By mean of parsimony analysis of endemicity the close affinity between the fauna of Melolonthidae from Rancho Canaletas, Los Tuxtlas, Veracruz and Boca de Chajul, Chiapas is evidenced. [ABSTRACT FROM AUTHOR]

In this note, we report the first record of Specularius impressithorax (Pic) (Coleoptera: Bruchidae) in seeds of Erythrina americana. The flowers of this plant are used as food or as a commercial commodity. The presence of this insect could therefore cause economic damage to the region [ABSTRACT FROM AUTHOR]

Passalus (Pertinax) unimagdalenae sp. n. is described and illustrated as a mountain species distributed between 1560 and 2309 masl in the Sierra Nevada de Santa Marta. [ABSTRACT FROM AUTHOR]

Lagunas de Montebello National Park in Chiapas, is considered an important area for biodiversity conservation in Mexico, so we was studied the fauna of Scarabaeoidea in the main habitat conditions: montane rain (MRF), pine-oak-sweetgum (POSF) and pine (PF), during February to August 2010. The beetles was obtained using 27 traps baited with ferments of banana (Musa paradisiaca), nine pitfall traps baited with human feces, 27 pitfall traps baited with squid meat, three white fluorescent light traps, three black light traps and the direct capture of individuals. We obtained a total of 67 species belonging to three families and 31 genera. The type of vegetation richer was MRF with 46 species, followed by POSF and PF with 41 and 35 species respectively. However, the exponential of the Shannon-Wiener index obtained its highest value in the PF recording 10.91 species. Clench's equation and the linear dependence model estimated a capture effort of 68% and 94% respectively. The estimation of beta diversity was calculated using Jaccard's Coefficient and Complementarity. We was recorded the biggest similarity between the faunas of POSF and MRF (0.49), while the highest dissimilarity was presented at the MRF-PF ratio (0.62). The influence of precipitation was determined with Spearman correlations, being significant with the species richness of the MRF (Rho = 0.73; p = 0.007), POSF (Rho = 0.67; p = 0.018) y PF (Rho = 0.68; p = 0.015), while the abundance was significantly correlated with precipitation in the MRF (Rho = 0.61, p = 0.035). It is important conservation areas such as the Lagunas de Montebello National Park, which has a different forest types and an increase in the intensity of human activities in recent years, even in areas subject to preservation possibly affecting species with habitat specificity. [ABSTRACT FROM AUTHOR]

Bothrideres cactophagi was collected from Milpa Alta, Mexico City, the first reported locality for Mexico. This species was found as a gregarious ectoparasitoid on Metamasius spinolae pre-pupae. It is the only parasitoid reported from this pest in central Mexico. [ABSTRACT FROM AUTHOR]

With the purpose of evaluating the abundance of beetles (Scarabaeoidea) of the sugar cane area of Atencingo southward of the state of Puebla, captures were carried out during the period of 2000 to 2003 by using a screen-type light trap provided with a 120 watts mercury vapor light lamp, as well as direct collection under the public illumination and on tree and bush foliage. A total of 1253 specimens representing four families, six subfamilies, 11 tribes and 23 species of the genera Cotinis, Cyclocephala, Digitonthophagus, Diplotaxis, Epectinaspis, Ligyrus, Paranomala, Phileurus, Phyllophaga, Polyphylla, Ptichopus and Strategus were collected. Best represented genus was Phyllophaga with five species. Most abundant species were Cyclocephala lunulata and Phyllophaga brevidens, each with 534 and 539 specimens, respectively. A key to the 23 species is included. [ABSTRACT FROM AUTHOR]

Fourteen first state records of 13 species of Staphylinidae from Hidalgo (seven species), San Luis Potos' (five species) and Guanajuato (two species) are presented. Geographical distribution data currently known for each species are included, which were located in the Mexican biogeographic provinces. The geographical distribution analysis of each species suggests a correspondence with four distribution patterns, three of them previously recognized in several beetle groups and one more identified in this analysis: Mountain Mexican Component (one species), Mesoamerican Component (seven species), Mountain Mexican Component-Continental Nearctic Component (three species), and South-eastern Mexican (two species). In addition to assign the 13 species to each pattern, other species of Staphylinidae and species of several families supporting these patterns were included. [ABSTRACT FROM AUTHOR]

We provide an overview of the Entomological Collection Tomas G. Zoebisch, recently donated to the Entomological Collection of the Centro de Estudios en Zoologia, Universidad de Guadalajara. This collection contains 3,790 specimens: 2,952 from Mexico and 838 from other countries. They belong to 31 families and 436 species. Scarabaeidae is the most abundant family (2,601 specimens), followed by Carabidae (684), whereas Pleocomidae and Ochodaeidae are represented by only one specimen each one. Most of the specimens from Mexico were collected in Morelos State. Beetles from other countries are well represented from Peru, Spain and, the United States of America. Labels information was included in two databases: one for Mexican beetles and another one for those of other countries. Copies of these databases are deposited at the Comision Nacional para el Conocimiento y Uso de la Biodiversidad and in the Centro de Estudios en Zoologia. [ABSTRACT FROM AUTHOR]

By means of the usage of Lindgren traps laced with frontaline and other baits, placed on 12 different temperate forest climate localities throughout Mexico, there were obtained six species of the genus Enoclerus (Coleoptera: Cleridae: Clerinae), A general diagnosis and key for these species is presented. The members of this genus are very important natural predators of bark and ambrosia beetles. A genus-level integrated analysis is presented for each of the capturing sites. The analysis involved all captured insects. Prominent among the captured beetles were E. ablusus, E. arachnodes, E erro due to its abundance and the number of localities on which those were present, whereas E. aethiops, E. moestus and E. nigricans are sparsely represented, both in number and collected localities. New distributional records are reported for all the collected species. [ABSTRACT FROM AUTHOR]

A new species of Macrocopturus Heller found in Bursera citronella Mc Vaugh & Rzedowski in Guerrero, Mexico is described. M. bruserophagus, new species, is proportionally broader and more flattened above than other species of the genus, and has carinate femora armed with ventral teeth. Larvae and pupa are described also. [ABSTRACT FROM AUTHOR]

We assessed the food habits of adult males and females of Aspidoscelis gularis during the rainy season from a location in the municipality of San Joaquin, in the southeastern region of the state of Querétaro, Mexico. The items most consumed by both sexes were termites, and less frequently adult beetles, and cockroaches. These data reveal that in the rainy season these prey are most abundant, and the resource most consumed by both sexes, revealing a high degree of alimentary overlap between males and females. [ABSTRACT FROM AUTHOR]

The diurnal weevil Optatus palmaris Pascoe was found on Annona muricata L. (Anonaceae) fruits in Nayarit, Mexico which represents a new plant host record and extends the weevil distribution. Other plant hosts and damages produced are mentioned. [ABSTRACT FROM AUTHOR]

The necrophagous beetles (Scarabaeidae and Trogidae) occurring in the lowland of central Veracruz are studied and the assemblage composition is compared with those found in other regions. Specimens were collected during the rainy season of 2000 in the disturbed semi deciduous seasonal forest remnants associated with secondary vegetation and crop fields of Apazapan-Jalcomulco region (280-450 m of altitude). We recorded 2135 specimens belonging to the Scarabaeidae and Trogidae families represented in three subfamilies, seven tribes, 11 genera, and 18 species which represent the 92 % of the all necrophagous beetle species possible to be found in this region. Canthon cyanellus cyanellus, Deltochilum gibbosum sublaeve y Coprophanaeus pluto were the most abundant species on the samples. Richness and abundance were higher at the beginning of the rainy season followed by a gradual decrease as the season went by. Beetle abundance was higher in Apazapan than in Jalcomulco. Burrower beetle species richness exceeded the roller species in a 3:1 ratio but the abundance ratio was reversed. Daily beetle activity of nocturnal species is higher than diurnal species. This region showed 63% of specific similarity and around 80% of genus similarity with the coastal region of Veracruz, and is comparable with 56% and 90% of the respective similarities with the lowland region of "El Cielo" Biosphere Reserve in Tamaulipas. [ABSTRACT FROM AUTHOR]

For the genus Canthon, a new species (C. lucreciae) is described; for the first time the presence of a second species in Chiapas, Mexico is indicated; as is the presence of two more species previously only known as one record. [ABSTRACT FROM AUTHOR]

This paper reports the results of fields studies on the biology of Coprophanaeus (C.) gamezi Arnaud conducted in induced pastureland and banana plantations in the Lake Maracaibo Depression of the state of Zulia, Venezuela. Carrion - baited pitfall traps were used to monitor annual and daily activity cycles. Greatest abundance was observed in the banana plantations. Daily activity cycle was crepuscular and bimodal with approximately 30 min periods of activity at dusk and dawn. Daily rhythm was marked by a preference for low light intensities (0- 30 Lux sunset, 0-3 Lux sunrise), higher humidities (87.6% - 89% sunset; 95.3% - 96.7% sunrise), and temperatures between 27.3°C and 27.7 °C sunset and 24.9°C and 25.1 °C sunrise. Most (73%) of the captured specimens were collected at sunset, perhaps as a consequence of interactions between an endogenous rhythm and certain environmental variables, especially temperature and light intensity. Coprophanaeus gamezi is one of the most important necrophages in open and semi open habitats studied where rainforest has been cut in the Maracaibo Depression. [ABSTRACT FROM AUTHOR]