A.V. Frolov

Revision of the South American genus Paraegidium (Coleoptera: Scarabaeidae: Orphninae)

 

Frolov A. V., Akhmetova L. A., Vaz-de-Mello F. Z. 2017. Revision of the South American genus Paraegidium (Coleoptera: Scarabaeidae: Orphninae). Journal of Natural History, 51, 995–1014.

The Neotropical Orphninae genus Paraegidium Vulcano et al. is revised. Five new species are described: Paraegidium monneorum sp. nov., Paraegidium barretoi sp. nov., Paraegidium pokornyi sp. nov., Paraegidium howdeni sp. nov., and Paraegidium oliveirai sp. nov. The genus is subendemic to Brazil, and its species are distributed from Guiana Shield in the north to the Peruvian Yungas in the west and to Serra do Mar escarpments in the southeast. Keys, descriptions, illustrations of habitus and male genitalia, and distributional record map are given.

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.

Review of the Madagascan Orphninae with revision of the genus Triodontus Westwood

 

Frolov A. V., Montreuil O., Akhmetova L. A. 2016. Review of the Madagascan Orphninae (Coleoptera: Scarabaeidae) with revision of the genus Triodontus Westwood. Auckland: Magnolia Press. 2016, 93 p.

The subfamily Orphninae (Coleoptera: Scarabaeidae) is reviewed from Madagascar. A total of four genera and 39 species were found, all being endemic to the island. The following five new species are described: Triodontus ankarafantsikae, Triodontus lemoulti, Triodontus viettei, Triodontus fairmairei, and Triodontus inexpectatus. Lectotypes are designated for Orphnus nitidulus Guérin-Méneville, 1844 and Orphnidius modestus Benderitter, 1914. The following new synonymies are proposed: Orphnus nigrita Brancsik, 1893 is synonym of Triodontus hova (Fairmaire, 1868); Triodontus occidentalis Paulian, 1977 and Orphnus obsoletus Brancsik, 1893 are synonyms of Triodontus nitidulus (Guérin-Méneville, 1844); Triodontus vadoni Paulian, 1977 and Triodontus perrotorum Paulian, 1977 are synonyms of Triodontus owas Westwood, 1852.Keys, descriptions, illustrations of habitus and male genitalia, and distributional records maps are given for all species.

Revision of the subgenus Orphnus (Phornus)

Fig. 1. Orphnus (Phornus) spp. A–M. O. giganteus. N. O. renaudi. O. O. ferrierei. P. O. valeriae. Q. O. parastrangulatus. R. O. strangulatus.

Frolov, A. V. & Akhmetova, L. A. 2016. Revision of the subgenus Orphnus (Phornus) (Coleoptera, Scarabaeidae, Orphninae). European Journal of Taxonomy 241: 1–20

The Afrotropical subgenus Phornus Paulian of the genus Orphnus Macleay is revised and currently comprises six species. Four new species are described: Orphnus renaudi, Orphnus valeriae,Orphnus ferrierei,and Orphnus parastrangulatus. The subgenus is characterized by the coarse stridulatory field, sclerotized plate on the second abdominal sternite near plectrum, absence of the pronotal lateral processes in males, rounded apices of the parameres and endophallus without armature, although some of these characters differ in O. giganteus. Symphysocery is reported for the first time for members of the Orphninae. In O. giganteus, the majority of specimens have malformed antennomeres. Four of the six species of Phornus are brachypterous and all species except for O. giganteus Paulian are known only from males. A key to Phornus species and a map of their localities are provided.

A new brachypterous scarab species, Orphnus longicornis from East African Rift

Figures 1–7. Orphnus longicornis.

Frolov, A. V. & Akhmetova, L. A. 2015. A new brachypterous scarab species, Orphnus longicornis (Coleoptera: Scarabaeidae: Orphninae), from the East African Rift. Zootaxa, 4039(3): 475–477

Examination of the material housed in the Museum of Natural History of Humboldt-Universität, Berlin, Germany (ZMHUB), revealed a series of brachypterous Orphnus beetles belonging to an undescribed species.

Rediscovery of the enigmatic Stenosternus costatus from São Tomé Island

Figures 1–2. Stenosternus costatus Karsch, habitus in dorsal view and abdomen in ventral view. 1 — female, 2 — male.

Frolov, A. V. & Akhmetova, L. A. 2015. Rediscovery of the enigmatic Stenosternus costatus Karsch (Coleoptera: Scarabaeidae: Orphninae) from São Tomé island. Zootaxa, 4007, 440–444.

Stenosternus Karsch, 1881 is one of the least-known genera of the Orphninae scarab beetles. It was described from a single specimen of the odd-looking S. costatus Karsch, 1881, from the island of São Tomé, Gulf of Guinea, West Africa. Since then, no more findings of S. costatus have been reported... We discovered additional specimens of both sexes of S. costatus housed in the Museo Civico di Genova, Genova, Italy (MCGI) and California Academy of Sciences, San Francisco, California, United States of America (CASC). In this note we describe a female of S. costatus and discuss the species distribution and the taxonomic position of the genus.

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.

New data on the rare Afrotropical scarab beetles Orphnus drumonti and Delopleurus naviauxi

 

Frolov, A. V. & Akhmetova, L. A. 2015. New data on the rare Afrotropical scarab beetles Orphnus drumonti Frolov and Delopleurus naviauxi Frolov et Cambefort (Coleoptera, Scarabaeidae, Orphninae and Scarabaeinae). Biodiversity Data Journal, 3: e5444.

The scarab beetle genera Orphnus Macleay and Delopleurus Boheman are most speciose in the Afrotropical region. However, a number of species are only known from type specimens, sometimes only from one sex. New locality records of Orphnus drumonti Frolov (Orphninae) and Delopleurus naviauxi Frolov et Cambefort (Scarabaeinae) are given. The previously unknown female of the former and male of the latter species are described.

Обзор жуков подрода Nobius рода Aphodius России

Figs. 1–8. Aphodius Ill., general view: (1, 2) A. pustulifer Reitt., (3, 4) A. chaldaeus Petr., (5, 6) A. serotinus (Panz.), (7, 8) A. inclusus Reitt.Ахметова, Л.А., Фролов, А.В. 2008. Обзор пластинчатоусых жуков подрода Nobius Mulsant et Rey рода Aphodius Illiger (Coleoptera, Scarabaeidae) фауны России и сопредельных стран. Энтомологическое обозрение, 87, 397-410.

Резюме. Дан обзор пластинчатоусых жуков подрода Nobius Mulsant et Rey рода Aphodius Illiger, фауны России и сопредельных стран. Дана определительная таблица видов и сведения по их распространению. Описан новый вид A. dosang sp. n. Установлена новая синонимия трех видовых названий: A. serotinus (Panz.),1799 = A. x-signum Reitter, 1892, syn. n.; A. gresseri Sem. 1898 = A. korgaldzhensis Nikolajev, 1987, syn. n. ; A. chaldaeus Petr., 1971 = A. moreleti Baraud, 1980, syn. n. Обозначены лектотипы A. inclusus Reitt., 1892 и A. gresseri.

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