Scarabaeidae

Contributions to the knowlege of genus Aphodius from North Palaearctic. II.

Aphodius circassicus Frolov, A.V. 1997. Contributions to the knowlege of genus Aphodius from North Palaearctic. II. A. circassicus and A. lederi (Coleoptera: Scarabaeidae). Zoosystematica Rossica, 5(2): 277–280.

Aphodius circassicus Reitter and A. lederi Harold, closely related species from the Caucasus, were known by single specimens so far. Redescriptions of these rare species are given. The taxonomic position the species is discussed.

Revision of the genus Delopleurus with description of new species from Africa

Frolov, A.V. 2014. Revision of the genus Delopleurus Boheman (Coleoptera: Scarabaeidae: Scarabaeinae) with description of new species from Africa. Journal of Natural History, 49: 1-25. 

The genus Delople​urus Erichson, 1847, is revised. Five new species are described from Africa: Delopleurus naviauxi sp. nov., Delopleurus krikkeni sp. nov., Delopleurus darrenmanni sp. nov., Delopleurus fossatus sp. nov. and Delopleurus pubescens sp. nov. One new synonymy is established (Delopleurus parvus (Sharp, 1875) = Delopleurus cardoni Paulian, 1934, syn. nov.). Lectotype of Delopleurus pullus Boheman, 1857, is designated. Delopleurus janssensi Frey, 1963, is transferred to the genus Metacatharsius Paulian, 1939. A key to the Delopleurus species and locality maps are given.

On the synonymy of two species names of the genus Aphodius described by Iablokoff-Khnzorian

Frolov, A.V., Akhmetova, L.A. 2008. On the synonymy of two species names of the genus Aphodius Ill. (Coleoptera, Scarabaeidae) described by S. M. Iablokoff-Khnzorian. Entomological Review, 87(3): 624–626.

Based on examination of the type material, names of two Aphodius species are placed in synonyms: A. edgardi Solsky, 1876 = A. sartus Iablokoff-Khnzorian, 1971, syn. n.; and A. putridus Geoffroy, 1785 = A. avetissiani Iablokoff-Khnzorian, 1964, syn. n.

On the Synonymy of Two Names of Species of the Genus Aphodius Described from Siberia

Frolov, A.V., Akhmetova, L.A. 2008. On the synonymy of two names of species of the genus Aphodius Ill. (Coleoptera, Scarabaeidae) described from Siberia. Entomological Review, 88(8): 916-917.

Based on examination of the type material, the following new synonymy is established: A. granarius (L., 1767) = A. tomskianus Balthasar, 1973, syn. n.A. granarius (L., 1767) = A. pecirkai Balthasar, 1932, syn. n. .

Contribution to study of Lower Volga center of scarab beetle diversity in Russia

Figure 1. Fixed sands near Dosang, Astrakhan Province, Russia.Frolov, A. V. & Akhmetova, L. A. 2013. A contribution to the study of the Lower Volga center of scarab beetle diversity in Russia: checklist of the tribe Aphodiini (Coleoptera, Scarabaeidae) of Dosang environs. Biodiversity Data Journal, 1: e979.

The field sampling of the Aphodiini scarab beetles in Dosang environs (Astrakhan Province, European Russia) in 2006–2012 resulted in the collection of 44 species. All but one of them belong to Aphodius Hellwig ( sensu lato). This is apparently the richest recorded local Aphodiini fauna in Russia. The high Aphodiini diversity in the area can be explained by the long vegetative season with high effective heat sum, large livestock providing abundant food resources throughout the year, and location in the transition belt between Volga-Akhtuba Floodplain and Desert floristic districts. The core fauna consists of mesophilous species widely distributed in the Palearctic region and confined to the intrazonal habitats. Other species have ranges mostly limited to the steppe, semidesert, and desert zones.

Stenosternus Karsch, a possible link between Neotropical and Afrotropical Orphninae

1–3 Habitus of males 4 punctation of elytral disc 5 aedeagus in lateral view and parameres in dorsal view 6 serration of medial margins of parameres 7–10 aedeagus in ventral view 1, 4–7 Stenosternus costatus Karsch, holotype 2 Aegidium colombianum Westwood 3 Orphnus macleayi Laporte de Castelnau 8 Hybalus cornifrons (Brullé) 9 Aegidium parvulum Westwood 10 Orphnus compactus Petrovitz.Frolov, A.V. 2013. Stenosternus Karsch, a possible link between Neotropical and Afrotropical Orphninae (Coleoptera, Scarabaeidae). ZooKeys, 335: 33-46.   PDF (2.41 MB)

Abstract. The monotypical orphnine genus Stenosternus Karsch is known from a single specimen of Stenosternus costatus collected on the São Tomé island (Gulf of Guinea). The holotype of Stenosternus costatus Karsch is re-examined and its characters are discussed and illustrated. Although the genus was implicitly placed by Paulian (1984) in the Old World tribe Orphnini Erichson, re-examination of the holotype of Stenosternus costatus shows that it has characters similar to those of the members of the New World tribe Aegidiini Paulian. Placement of Stenosternus in the Aegidiini is supported by the metepisternum widened posteriorly (forming posterior metepisternal lock for closed elytra) and a keel separating basal and anterolateral parts of propleurae. Relationships of Stenosternus with other orphnine taxa and possible ways of origin of São Toméan orphnine fauna are discussed.

Genus Coptorhina (Scarabaeidae, Scarabaeinae)

Coptorhina klugii

Among the other genera of Sarophorus group, species of Coptorhina are readily recognized by a combination of two characters: (1) metepisternon somewhat rectangular, widest in its hind part, with secondary suture and very convex epipleural margin; (2) bidentate clypeus. Coptorhina shares the first character with the genus Delopleurus Erichson and it is probably a synapomorphy of the two genera. Delopleurus, however, can be easily separated by having a quadridentate clypeus. Males with weakly developed clypeal processes and females of some larger species of Frankenbergerius Balthasar are similar to species of Coptorhina...

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.

Size correlation between larvae and adults in Aphodius

Scatter diagram and regression line

Frolov, A. V. & Akhmetova, L. A. 2005. Size correlation between larvae and adults in Aphodius (Coleoptera, Scarabaeidae). Bulletin de l'Institute Royal des sciences naturelles de Belgique, Entomologie, 75: 321-324. Fulltext PDF (199.22 KB)

Correlation between simple averages of 4 measurements of adults (separately for males and females) and 2 measurements of third-instar larvae was studied in 19 Palearctic species of dung beetle genus Aphodius Illiger. The greatest correlation (r=0.973) is found between head width of larvae (HWL) and elytra width of male beetles (EWM). The equation (HWL = 0.26 + 0.54 × EWM) can be used as an additional tool for rapid larval identification.

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