orphnines

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.

A new apterous species of the genus Orphnus from South Africa

Figs. 1–2: Orphnus harrisoni habitus; Fig. 3: O. harrisoni aedeagus in dorsal and lateral view; Fig. 4: O. luminosus habitus; Fig. 5: O. luminosus aedeagus in dorsal and lateral view. Frolov, A.V. 2008. A new apterous species of the genus Orphnus MacLeay (Coleoptera: Scarabaeidae: Orphninae) from South Africa. Zootaxa, 1855: 65–68.

A new apterous species of the genus Orphnus MacLeay, 1819, is described from Little Karoo (South Africa).  The new species can be separated from closely related O. luminosus Benderiter, 1920, by the shape of the parameres and sculpture of the head and pronotum.

A new species, Orphnus drumonti, from the Democratic Republic of Congo

Figs. 1–6. Orphnus spp.: (1–3) Orphnus drumonti sp. n., male, holotype; (4–6) O. striatopunctatus Felsche, male [(1, 4) habitus; (2, 5) pronotum and head, lateral view; (3, 6) parameres, dorsal and lateral view]

Frolov, A.V. 2009. A new species, Orphnus drumonti sp. n. (Coleoptera, Scarabaeidae), from the Democratic Republic of Congo. Entomological Review, 89(6): 753–754.

Abstract—A new species of the genus Orphnus MacLeay, 1819 is described from Kisantu (Democratic Republic of Congo). The new species is similar to O. striatopunctatus Felsche in having a long bifurcated clypeal horn in the male, but can be distinguished from it by the shape of the parameres and longitudinal ridges on the pronotum, relatively slender body, and more slender clypeal horn.

New scarab-beetle species from Central Asia and Southern Africa

Figs. 1-13. Aphodius spp. and Orphnus spp.: (1, 6, 11) A. moronensis, sp. n., (2, 7, 9) A. kozlovi, sp. n., (8, 10) A. falcispinis W. Kosh., (3, 4, 13) O. transvaalensis, sp. n., (5, 12) O. harrisoni FrolovFrolov, A.V. 2009. New scarab-beetle species (Coleoptera, Scarabaeidae, Aphodiinae, Orphninae) from Central Asia and Southern Africa. Entomological Review, 89(6): 685-688.

Abstract—Three new scarab-beetle species are described. Aphodius moronensis sp. n. (northern Mongolia) and A. kozlovi sp. n (eastern Tibet) with modified spurs on fore tibiae in males are placed in the falcispinis group of the subgenus Agolius but are similar to the grafi group of the subgenus Chilothorax in the shape of parameres and elytral pattern. The new species differ from A. falcispinis in the shape of the spur; A. moronensis sp. n. also differs in the shape of the body and parameres. Orphnus transvaalensis sp. n. is the second apterous Orphnus species found in Southern Africa. It differs from the closely related O. harrisoni in the shape of parameres, position of the hornlike clypeal process, and in a smaller body size.

New and little known species of Orphnus from the East African Rift

FIGURES 1, 2. Orphnus, habitus of male. Fig. 1—O. planicollis. Fig. 2—O. demeyeri, holotypeFrolov, A.V. 2013. New and little known species of the genus Orphnus MacLeay (Coleoptera: Scarabaeidae: Orphninae) from the East African Rift. Zootaxa, 3710(3): 297-300.

The East African Rift, especially Eastern Arc Mountains, are renown for exceptionally high biodiversity and endemism (Olson & Dinerstein 1998, Burgess et al. 2007). About 20 species of the scarab beetle genus Orphnus MacLeay, 1819 (Coleoptera: Scarabaeidae: Orphninae) were described or recorded from this region (Paulian 1948, Petrovitz 1971) but many of them are still known only from the type series. Orphnus planicollis Petrovitz, 1971, was described from a single male specimen from “Nyassa-Land” with no additional data about this species published until now. Examination of the Orphninae material housed in European museums revealed additional specimens from southern Eastern Arc Mountains...

Revision of the genus Adorodocia endemic to Madagascar

Montreuil, O., Frolov, A.V. 2014. Revision of the genus Adorodocia Brenske 1893 (Coleoptera: Scarabaeoidea: Rutelinae: Adoretini) endemic to Madagascar. Annales de la Société entomologique de France (NS), 49(4): 460-475.

The Adoretini of the Malagasy endemic genus Adorodocia Brenske 1893 is revised. Fourteen new species and  one  new subspecies are described and  compared with their most closely related species: A. constricta  n.  sp., A. cuccodoroi n. sp., A. flava n. sp., A. liliae n. sp., A. marginata n. sp., A. peyrierasi n. sp., A. pseudoconstricta n. sp., A. pseudoflava n. sp., A. pseudostrigata  n. sp., A. recta  n. sp., A. robusta  n. sp., A. sogai n. sp., A. vadoni n. sp., A. viettei n. sp. and A. vittaticollis flavipes n. ssp. The synonymy between Adoretus strigatus Waterhouse 1878, and Pseudadorodocia  aenigma Arrow 1901, is confirmed. Thus, based on the results of this study, the genus Adorodocia includes 16 species, and one of them is represented by two subspecies. Diagnostic characters to separate the species in the genus deal mostly with the shape of parameres, color of body and legs, shape of pronotum and female eighth tergite, setation of pronotum and elytra. Key to species, diagnoses and distribution for each species are provided. Endophallus and female genitalia are illustrated for the first time for this genus.

New species of the Madagascan scarab beetle genus Madecorphnus

Frolov, A. V. 2014. New species of the Madagascan scarab beetle genus Madecorphnus Paulian, 1992 (Coleoptera: Scarabaeidae: Orphninae). Proceedings of the Zoological Institute RAS, 318(1): 34-39.

Abstract. Three new species of the scarab beetle genus Madecorphnus, endemic to Madagascar, are described from the material collected by the staff of the California Academy of Sciences. The new species are: M. fisheri sp. nov. (mid-elevation rain forest on the eastern flank of the Anosyenne Mountains, southern Madagascar), M. saintemariensis sp. nov. (coastal forest, Sainte Marie Island, eastern Madagascar), and M. tuberculatus sp. nov. (low elevation rain forest, Betampona Reserve, eastern Madagascar).

Subfamily Orphninae (Coleoptera, Scarabaeidae)

Orphninae

Subfamily Orphninae comprises small to medium-sized beetles with characters and appearance being somewhat intermediate between the two major groups of the family Scarabaeidae — dung beetles and chafers. Orphnines are uniformly colored, brown to black, without any pattern. Surface sculpture vary with majority of species having more or less densely punctate upper side of the body. Majority of genera exhibit strong sexual dimorphism with large males having variably developed clypeal horns and protoracic ridges, somethimes species-specific, but these characters are subject to allometric variability and some males are superficially similar to females.

Little known Orphninae collected by the Madagascan expeditions

Frolov A.V. 2013. Little known Orphninae (Coleoptera, Scarabaeidae) collected by the Madagascan expeditions of the California Academy of Sciences. Biodiversity Data Journal, 1, e1016.  PDF (462.44 KB) Figure 2. Madecorphnus falcatus Paulian, male, habitus.

New locality records for Madecorphnus niger Frolov, 2010, M. falcatus Paulian, 1992, M. simplex Frolov, 2010, and Triodontus itremoi Paulian, 1977, are given. Endophallus armature of M. niger Frolov, 2010, is described and illustrated.

A new species of scarab beetle, Madecorphnus cuccodoroi from northern Madagascar

Madecorphnus  cuccodoroi Frolov dorsal habitus

Frolov, A.V. 2010. A new species of scarab beetle, Madecorphnus cuccodoroi (Coleoptera: Scarabaeidae: Orphninae), from northern Madagascar. Zootaxa, 2531, 64-68.

Abstract. Madecorphnus cuccodoroi Frolov, sp. n. is described from specimens collected in indigenous forest in Amber Mountain National Park, northern Madagascar. The new species differs from the similar species M. peyrierasi Frolov and M. perinetensis Frolov in the shape of the parameres and internal sac armature.