Styngetus viduus (Erichson)

Aballay, Fernando H., Chani-Posse, Mariana R., Ayón, María Rosana, Maldonado, María Belén & Centeno, Néstor D., 2014, An illustrated key to and diagnoses of the species of Staphylinidae (Coleoptera) associated with decaying carcasses in Argentina, Zootaxa 3860 (2), pp. 101-124 : 119

Styngetus viduus (Erichson)

( Figs. 21 , 47 )

Diagnosis. Styngetus viduus can be distinguished by the following characters: all black except the elytra, metallic blue, and the abdominal segment 8 golden-orange; antennal segments 4–7 elongate, 8–10 subquadrate; head and pronotum coarsely and sparsely puncate, disc of pronotum with a medial impunctate are; elytra finely and densely punctuate. Length 10.0– 12.5 mm.

Distribution. Guatemala, Costa Rica, Panama, Colombia, Venezuela, Argentina ( Herman 2001; Newton, unpublished database).

Bionomics. Species belonging to Styngetus has been found in carrion, dung, leaf litter and fungi in Central American pine-oak forests ( Navarrete-Heredia et al. 2002).

Figures

FIGURE 13 – 24. Habitus: 13, Philonthus quadraticeps Boheman; 14, P. discoideus (Gravenhorst); 15, P. bicoloristylus Chani- Posse; 16, P. bruchianus Chani-Posse; 17, P. flavolimbatus Erichson; 18, P. bonariensis Bernhauer; 19, P. longicornis Stephens; 20, P. argus Herman; 21, Styngetus viduus (Erichson); 22, Xenopygus analis (Erichson); 23, Nordus elytisi Chatzimanolis; 24, Oligotergus ogloblini Bernhauer.

FIGURE 42 – 49. Abdomen: 42, Platydracus scabrosus; 43, Anotylus sp. Front tarsus: 44, Belonuchus rufipennis; 45, Philonthus longicornis; 46, Xenopygus analis; 47, Styngetus viduus. Femur: 48, Xenopygus analis; 49, Styngetus viduus. Abbreviation: Fe, femur.