Styngetus Sharp, 1884

Chatzimanolis, Stylianos, 2021, Out of Xanthopygus (Coleoptera: Staphylinidae): escape from polyphyly, ZooKeys 1071, pp. 83-107 : 83

Styngetus Sharp, 1884

Fig. 1F

Type species.

Philonthus viduus Erichson, fixed by subsequent designation by Blackwelder (1952) ( Herman 2001).

Species included.

The genus includes 16 species listed in Newton (2021) and Styngetus skalitzkyi comb. nov. based on the results of the phylogenetic analysis presented in this paper. For a complete taxonomic history of the genus see Herman (2001).

Diagnosis.

The genus is not revised so the following characters (in combination) should be considered only as a partial list: left mandible with bicuspid tooth; protarsi without ventral pale macrosetae (not present in all taxa); metafemur with upper posterior margin crenulate; sternites 3-5 with arch-like carina.

Remarks.

The type species was not available for the phylogenetic analysis. A formal revision of the genus is forthcoming (Chatzimanolis in preparation) where all species belonging to this genus will be treated and illustrated.

Figures

Figure 1. Habitus photographs of species of Xanthopygus sensu Herman 2001 A Xanthopygus calidus (Er.) B Xanthopygus chapareanus Scheerpeltz C Xanthopygus dimidiatus Bernhauer. Species A-C are transferred to Photinopygus gen. nov. D Xanthopygus giganteus (Bernhauer) E Xanthopygus xanthopygus (Nordmann) F Xanthopygus skalitzkyi (Bernhauer), transferred to Styngetus. Scale bars: 1.8 mm (A); 1.7 mm (B) 1.8 mm (C); 3.8 mm (D); 3.0 mm (E); 2.0 mm (F).