Delopleurus striatus Arrow

Frolov, Andrey V., 2014, Revision of the genus Delopleurus Boheman (Coleoptera: Scarabaeidae: Scarabaeinae) with description of new species from Africa, Journal of Natural History 49 (3), pp. 129-154 : 151-152

Delopleurus striatus Arrow

( Figure 9A–D )

Delopleurus striatus Arrow 1931

Diagnosis

This species (known from a single female) differs from other Delopleurus species in having characteristic granulate disc of pygidium ( Figure 9C ).

Description

Female. Body strongly convex, black, glabrous, length 5.1 mm ( Figure 9A ).

Clypeus appear bidentate with two medial teeth acute ( Figure 9B ). Clypeus rugose in anterior part and laterally, frons densely punctate (punctures separated by one to three puncture diameters).

Pronotum about two times wider than long. Anterior and lateral margins distinctly bordered, base bordered except in the middle. Pronotum densely punctate anterolaterally, sparsely punctate on the base and anterior part medially.

Elytra trapezoidal, as wide as long, shiny. Stria relatively deep, with punctures 1.5–2 times larger than striae width. Elytral intervals flat, with minute punctuation.

Anterior tibiae with three outer teeth, without a small acute tooth between first outer tooth and apical spur. Anterior tibial spur rounded apically.

Pygidium with relatively thick borders. Disc granulate, without setae ( Figure 9C ).

Male unknown

Type material

Holotype, female with the labels ‘ India. United Provs. Dehra Dun. 2,000 ft. viii.1927 H.G.Champion’, ‘India H.G.Champion B.M. 1931-8’, ‘ Delopleurus striatus type Arrow’, ‘Type’, ‘SYNTYPE’, ‘ Delopleurus striatus Arrow M.E.Bacchus det 1975 SYNTYPE’ ( BMNH).

Distribution

The species is known from the single locality in northern periphery of the Indo-Gangetic Plain ( Figure 9D ).

Figures

Figure 9. Delopleurus spp. and Metacatharsius janssensi. (A, E) habitus (A, D. striatus, E, M. janssensi); (B) D. striatus, head and pronotum in dorsal view; (C) D. striatus, pygidium; (D) D. striatus, locality map; (F) D. fossatus sp. nov., ventral view of head showing gula with distinct longitudinal groove.