Aegidiini

Contribution to the knowledge of Aegidinus Arrow

 

Frolov A. V., Akhmetova L. A., Vaz-de-Mello F. Z. 2019. Contribution to the knowledge of Aegidinus Arrow (Coleoptera: Scarabaeidae: Orphninae): new species and comments on the classification and nomenclature. Journal of Natural History. 53 (11-12): 725-747.

Two new species of the Neotropical Orphninae genus Aegidinus Arrow are described: Aegidinus noriegai sp. nov. and Aegidinus colbyae sp. nov. The lectotype of Orphnus candezei Preudhomme de Borre, 1886, is designated. Aegidium steinheili Harold, 1880, considered a synonym of Aegidinus guianensis (Westwood, 1846) is revalidated as Aegidinus steinheili (Harold). The following new synonymies are established: Aegidinus oreibates Colby, 2009 = Aegidinus guianensis (Westwood, 1846), syn. nov.; Aegidinus crypticus Colby, 2009 = Aegidinus guianensis (Westwood, 1846), syn. nov.; Aegidinus sunidigea Colby, 2009 = Aegidinus candezei (Preudhomme de Borre, 1886), syn. nov.; Aegidinus unicus Colby, 2009 = Aegidinus cornutus Colby, 2009, syn. nov. The male of Aegidinus simulatus Colby, 2009, is described. An updated diagnostic key to the males of Aegidinus is provided. The taxonomic and diagnostic characters as well as phylogenetic relationships of Aegidinus are discussed.

Contribution to the knowledge of the Neotropical canopy dwelling genus Onorius

 

Frolov A. V., Akhmetova L. A., Vaz-de-Mello F. Z. 2019. Contribution to the knowledge of the Neotropical canopy dwelling genus Onorius (Coleoptera, Scarabaeidae, Orphninae): another species from southern Ecuador and notes on the hind gut morphology in the Orphninae. Journal of Natural History. 53 (17–18): 1071–1077.

The generic status of Neotropical Orphninae genus Onorius Frolov et Vaz-de-Mello is supported by the discovery of another species in south-eastern Ecuador. The new species differs from O. inexpectatus Frolov et Vaz-de-Mello in the body sculpture and colouration. Both species have two large diverticula in the proximal part of the ileum; such structures are not found in the other members of the Aegidiini and are supposedly autapomorphic for Onorius.

Revision of the genus Aegidium Westwood, 1845, of the Lesser Antilles

 

Rojkoff S., Frolov A. V. 2017. Révision du genre Aegidium Westwood, 1845 des Antilles (Coleoptera, Scarabaeidae, Orphninae, Aegidiini). Annales de la Société Entomologique de France.52:354–368.

Revision of the genus Aegidium Westwood, 1845, of the Lesser Antilles (Coleoptera: Scarabaeidae, Orphninae, Aegidiini). Aegidium parvulum Westwood, 1846, from Guadeloupe, A. vincentiae Arrow, 1903, from St Vincent and A. dominicense (Cartwright & Chalumeau, 1977) from Dominica are redescribed. A. chalumeaui n. sp. from Guadeloupe and A. dierkensi n. sp. from Martinique are described. The five species are illustrated. Two identification keys are provided, one for the neotropical genera and one for the Aegidium species of the Lesser Antilles.

A new genus and species of Orphninae associated with epiphytes in Andean cloud forest

Onorius inexpectatus

Frolov, A.V., Vaz-De-Mello, F.Z. 2015. A new genus and species of Orphninae (Coleoptera: Scarabaeidae) associated with epiphytes in an Andean cloud forest in Ecuador. Zootaxa, 4007 (3): 433–436

Orphninae (Coleoptera: Scarabaeidae) are represented in the New World by the tribe Aegidiini, which is comprised of four genera (Paulian 1984). Examination of material collected in Ecuador revealed a series of the Aegidiini specimens from an undescribed species that cannot be classified as a member of one of the known genera. The new species is herein described and a new genus is established. Apart from the distinctive morphological characters, the new taxon shows an unusual, for the Orphninae, association with canopy epiphytes.

A new species of Aegidium Arrow from the Atlantic forest ecoregion

Aegidium atlanticum, holotype

Frolov, A.V., Grossi, P.C., Vaz-De-Mello, F.Z. 2015. A new species of the genus Aegidium (Coleoptera, Scarabaeidae) from the Atlantic Forest ecoregion in South America. Zootaxa, 4007 (3), 437–439.

The New World genus Aegidium Arrow comprises mid-sized to rather large beetles belonging to 12 species. The genus is distributed up to southern Mexico in the north (Morón 1991) and A. cribratum chileanum Paulian was described from Chile, but Aegidium has not been recorded southeast of the Amazonia. An interesting discovery was made by one of us (P.C.G.) who collected one male Aegidium specimen in the Atlantic forest patch near Nova Friburgo (Rio de Janeiro State, Brazil) — the area separated from the yet known range of the genus by vast territories occupied by the Cerrado biome. Examination of this specimen showed that it belongs to an undescribed species and differs sharply from the other congeners in the shape of its aedeagus.