Euspilotus (Hesperosaprinus) caesopygus (Marseul)

Aballay, Fernando H., Arriagada, Gerardo, Flores, Gustavo E. & Nestor D. Centeno,, 2013, An illustrated key to and diagnoses of the species of Histeridae (Coleoptera) associated with decaying carcasses in Argentina, ZooKeys 261, pp. 61-84 : 70

Euspilotus (Hesperosaprinus) caesopygus (Marseul) Figure 16

Diagnosis.

Medium to large size (length: 3.2-4.3 mm, width: 2.7-3.7 mm). Body black. Pronotum with coarse and dense punctation, disc small, with finer and sparse punctation. Pronotal hypomeron glabrous in dorsal view. Elytron with coarse and very dense punctation seemingly rugose, dorsal elytral striae 1-4 absent or vestigial, sutural stria present, lacking rounded arch, with a shining area on anterior half between the fourth dorsal and sutural striae which presents a finer and sparse punctation visible only at 60 × magnification. Pygidium: female with subapical groove, male without grooves. Protibiae with outer margin expanded and 10 short, reddish denticles.

Distribution.

Argentina and Bolivia ( Mazur 2011).