Oedemeridae, Latreille, 1810

Švihla, Vladimír, 2012, A review of the family Oedemeridae (Coleoptera) of the Socotra Archipelago, Acta Entomologica Musei Nationalis Pragae 52, pp. 337-346 : 344

Key to the Socotran species of the Oedemeridae

1. Both mandibles and claws simple. .................................................................................. 2

– Either both mandibles bifid apically or right mandibles with subapical tooth; claws dentate basally. ............................................................................................................................. 3

2. Parameres with ventrobasal tooth, pygidium rounded apically in both sexes, coloration as in Figs. 1–2 . Socotra. ....................... Colobostomoides marshalli socotraensis ssp. nov.

– Parameres without ventrobasal tooth; pygidium narrowly incised apically in both sexes; for habitus and coloration as in ŠVIHLA (2008b). Socotra, UAE, S Pakistan. ..................... .............................................................. Probosca (Proboxanth a) maindroni ( Pic, 1935)

3. Both mandibles bifid apically; basal teeth of claws reaching at least their midlength; pygidium triangularly emarginate in both sexes; parameres glabrous; habitus and coloration as in Figs. 6–8 . Socotra. ................................................... Anisochrodes janavlada sp. nov.

– Left mandibles simple, right one with subapical tooth; basal teeth of claws not reaching their midlength; pygidium rounded in both sexes; parameres pubescent. ...................... 4

4. Head and vertex unicolor; aedeagus with apical tooth; habitus and coloration as in Fig. 5 . Socotra, Abd al Kuri. .......................................... Dentostomus guichardi ( Švihla, 1987)

– Head with darker spot on vertex; pronotum infuscate medio-longitudinally and laterally; aedeagus without apical tooth; habitus and coloration as in Figs. 3–4 . Socotra, Darsah, Abd al Kuri. ...................................................... Dentostomus socotrensis ( Švihla, 1986)

Figures

Figs. 1–4. General habitus of Socotran Oedemeridae. 1–2 – Colobostomoides marshalli socotraensis ssp. nov.; 3–4 – Dentostomus socotrensis (Švihla, 1986).

Figs.5–8. General habitus of Socotran Oedemeridae. 5 – Dentostomus guichardi (Švihla, 1987); 6–8 – Anisochrodes janavlada sp. nov.