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Relatively little is known about pollination and other aspects of the reproductive biology of bamboos, but wind pollination is assumed to be the rule, at least in woody bamboos. Documenting the reproductive biology of woody bamboos is a complex task due to the long periods of time between flowering cycles, which range from 3 to 120 years. Insects visiting Guadua paniculata and G. inermis flowers were collected in the field. Scanning electron micrographs were taken of the visiting insects. Four species of bees, three from tribe Meliponini (Geotrigona acapulconis, Plebeia frontalis and Trigona fulviventris) and one from tribe Apini (Apis mellifera), along with a syrphid fly (Toxomerus teligera) were found visiting bamboo flowers. Some species of Hemiptera were also found feeding on the flowers, such as Neortholomus jamaicensis (Lygaeidae), or preying on the flower visitors (Apiomerus pictipes (Reduviidae)). Insects visiting bamboo inflorescences may facilitate the release of pollen grains into the air, promoting outcrossing and genetic flow among the individuals of the flowering bamboo populations.

Se describen e ilustran en detalle todos los estadios de Cebreniscella antennata Brailovsky, incluyendo notas sobre su biología, se le ha encontrado alimentándose de las estructuras reproductoras de varias especies de Vernonia (Asteraceae), y se encuentra distribuida desde el estado de Jalisco, hasta Oaxaca, incluyendo Morelos y el Estado de México.

ResumenSe describen los estados inmaduros de 3 especies de chinches Lygaeinae provenientes de la península de Baja California, México. Se ilustran y describen en detalle todos los estadios de Melacoryphus nigrinervis (Stål) y de Oncopeltus (Oncopeltus) sanguinolentus Van Duzee. Para Lygaeus kalmii kalmii Stål se ilustran y describen los estadios cuarto y quinto. Se incluyen también notas acerca de la biología y distribución de las especies estudiadas.AbstractImmature stages of 3 species of Lygaeinae from the Peninsula of Baja California, Mexico are described. Illustrations and detailed descriptions of all instars of Oncopeltus (Oncopeltus) sanguinolentus Van Duzee and Melacoryphus nigrinervis (Stål); for Lygaeus kalmii kalmii Stål fourth and fifth instars are described and illustrated. Biological notes, host plants and distribution are also included.

The genus Eremocoris Fieber is represented by 43 species, and three subspecies, 14 and 3 are Palearctic, 5 Oriental, 3 Afrotropical and 21 Nearctic. 14 species are recorded in Mexico. This contribution contains descriptions and illustrations of the adult and all immature stages of Eremocoris juquilianus sp. nov. and notes on its biology, habitat, and distribution in Mexico.

The genus Eremocoris Fieber is represented by 43 species, and three subspecies, 14 and 3 are Palearctic, 5 Oriental, 3 Afrotropical and 21 Nearctic. 14 species are recorded in Mexico. This contribution contains descriptions and illustrations of the adult and all immature stages of Eremocoris juquilianus sp. nov. and notes on its biology, habitat, and distribution in Mexico.