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Data from the literature and from specimens preserved at the Colección Nacional de Insectos (CNIN) Instituto de Biología, UNAM were used to compile a checklist of the fauna of Coleoptera of the state of Morelos, México. A sum of 70 families, 167 subfamilies, 361 tribes, 1,022 genera, and 2,606 species are recorded; from this 24 species are new records for Morelos. The State of Morelos ranks fourth in Coleoptera species richness for Mexico, following Veracruz (3,176 spp.), Oaxaca (2,148 spp.) and Chiapas (1,734 spp.). The checklist presented here provides a summary that can serve as a basis for future progress in the knowledge of Mexican Coleoptera.

Fourteen species of Euscelus Schoenherr are recognized from the West Indies: E. armatus (Gyllenhal), E. scutellatus (Klug), E. dentipes (Fabricius), E. angulosus (Gyllenhal), E. scrobiculatus Voss, E. uviferae Marshall, E. pulchellus (Suffrian), E. cribrarius (Olivier), E. biguttatus (Fabricius), E. sexmaculatus (Chevrolat), E. aureolus (Gyllenhal), E. haitensis new species from Haiti, E. postoculidens new species and E. dominicanus new species from the Dominican Republic. Four previously described eusceline species from the West Indies are relegated to synonymy: Euscelus cancellatus Voss, new synonymy; Euscelus callosipennis Voss, new synonymy; Euscelus coccolobae (Wolcott), new synon- ymy and Emphyleuscelus cubensis Janczyk, new synonymy. Specimens were unavailable for Attelabus canaliculatus Olivier, Attelabus spinifex Olivier and Attelabus fornicatus Olivier and they are not included. Lectotypes are designated for E. uviferae and E. pulchellus. A key separating West Indian euscelines is provided and the species are covered in standard taxonomic fashion including habitus images and aedeagal illustrations. KEY WORDS: Attelabidae, Leaf rollers, Euscelus, West Indies

The generic name Euscelus was originally proposed by Schoenherr (1833: 205) for a genus of Leaf Rolling weevils (Insecta: Coleoptera: Attelabidae). It is a valid name, in current use, for a relatively large genus of weevils, widespread in northern South America and central America, including the West Indies and the Caribbean (e.g. Hamilton 2007; Legalov 2007). Euscelus Claus, 1879 was established as a monotypic genus of pelagic amphipod (Crustacea: Amphipoda: Hyperiidea: Parascelidae). It is a very rare genus, still monotypic, with the only species, E. robustus Claus, 1879, having been recorded only twice in the literature prior to my review of the families and genera of the superfamily Platysceloidea (Zeidler 2016); initially by Claus (1879), from the Indian Ocean (off Zanzibar), and secondly by Spandl (1927), from the North Atlantic Ocean (off the Azores). Both authors only recorded males. While examining the collections of the Zoological Museum, University of Copenhagen (Zeidler 2016) more specimens of this rare species were located amongst the collections of the Dana expeditions of 1928–1930 (Jespersen & Tåning 1934), thus enabling a more complete description of the species including that of females. It was recently brought to my attention that, according to the data base Interim Register of Marine and Nonmarine Genera (Rees 2016), Euscelus Claus, 1879 is a junior homonym of Euscelus Schoenherr, 1833. While researching this problem I discovered that Stebbing (1888) had also become aware of this homonymy and had suggested the replacement name Eusceliotes. Unfortunately, Stebbing (1888) only refers to the name in his index (pp. 1672, 1699) and hence subsequent authors were unaware of the above homonymy and Stebbing’s replacement name, although it is listed by Neave (1939: 370). The purpose of this communication is to resolve the above homonymy by validating Stebbing’s (1888) replacement name. This action is preferred to proposing yet another new name for Euscelus Claus, 1879, in order to avoid further confusion, because Stebbing’s name, Eusceliotes, already exists in the literature (Stebbing 1888, Neave 1939).

The female of Paracrias huberi Gumovsky (Hymenoptera: Eulophidae) is redescribed and the previously unknown male described from material collected by George B. Vogt near Plummers Island, Maryland. The species is diagnosed and placed within the current phylogenetic concept for the genus Paracrias. Collection records indicate this species was reared from Homoeolabus analis Illiger (Coleoptera: Attelabidae), which is a leaf-rolling herbivore of Quercus spp. and Castanea spp. (Fagales: Fagaceae), thus expanding the potential host guild range of the genus Paracrias and the known biology of the species. In addition, these records report an association with Q. prinus L., a species native to the eastern United States. The implications of these discoveries in relation to the biology of the plant, host, and wasp parasite are reviewed and discussed.

The genus Omolabus Jekel is redefined and the genus Xestolabus Jekel is assigned to subgeneric status, New Status, under Omolabus. Fourteen species are recognized in the genus Omolabus in North and Central America: O. angulipennis (Sharp) New Combination, O. callosus (Sharp), O. conicollis (Sharp) New Combination, O. corvinus (Gyllenhal) New Combination, O. fasciventris New Species, O. heterocerus (Sharp) New Combination, O. laesicollis (Gyllenhal) New Combi- nation, O. ligulatus (Sharp), O. longiclava (Sharp) New Combination, O. megalomus New Spe- cies, O. quadratus (Sharp), O. sedatus (Sharp) New Combination, O. spinipectus New Species and O. veracruensis New Species. The following species are placed in New Synonymy: X. constrictipennis (Chittenden), X. tabascoensis Voss, O. brevicollis Sharp and O. biimpressus Voss. Lecto- types are designated for the following Sharp species: O. callosus, O. conicollis, O. heterocerus, O. ligulatus, O. quadratus, and O. sedatus. Identification keys based on external characteristics are provided for the New World genus group Attelabina and for all known Omolabus species occurring in North and Central America. Digital habitus images, illustrations of male genitalia and host plant associations are also included.