A review of the genus Oodescelis Motschulsky, 1845 (Coleoptera: Tenebrionidae Platyscelidini) from China Author Bai, Xing-Long Author Li, Xiu-Min Author Ren, Guo-Dong text Zootaxa 2019 2019-08-15 4656 3 401 430 journal article 26016 10.11646/zootaxa.4656.3.1 65d2201e-d125-43e7-8b9a-2c3dcb161bc2 1175-5326 3368901 9789BD3C-1DCE-4483-BDAD-A506B88C30FB Key to species of the genus Oodescelis from China (based on males) 1. Anterior margin of pronotum deeply emarginate, anterior angles sharp........................................... 2 - Anterior margin of pronotum straight or nearly straight, anterior angles obtuse..................................... 6 2. Prosternal process, in lateral view, weakly obtuse apically; elytra elongate-oval, surface of elytral apex and epipleura dull, surface of epipleura without punctures or wrinkles (subgenus Planoodescelis )..................................... 3 - Prosternal process, in lateral view, sharp apically; elytra oval, surface of elytral apex and epipleura shiny, surface of epipleura with punctures and wrinkles (subgenus Acutoodescelis )....................................................... 4 3. Body black; pronotum widest at base, disc with dense punctures; elytra flattened, width at middle almost equal to that at base; abdomen without setal brush; metatibiae slightly curved; parameres much shorter than phallobase, base of parameres nearly as wide as apex, distal part wide and flat ( Figs. 39–40 ).............. Oodescelis ( Planoodescelis ) kansouensis Kaszab, 1940 - Body brown; pronotum widest at middle, disc with very sparse punctures; elytra weak convex, width at middle obviously wider than that at base; abdominal ventrites 1, 2 and 5 with setal brush at middle; metatibiae straight; parameres nearly as long as phallobase, base of parameres strongly wider than apex, distal part narrow and long ( Figs. 41–42 )................................................................................ Oodescelis ( Planoodescelis ) lii Bai & Ren , sp. nov. 4. Pronotal punctures elongate, merging into distinct longitudinal long furrows at sides; metatibiae weakly curved................................................. Oodescelis ( Acutoodescelis ) punctatissima punctatissima ( Fairmaire, 1886 ) - Pronotal punctures round, part of them merging into extremely short longitudinal furrows at sides; metatibiae straight..... 5 5. Elytral punctures as large as those on pronotum but sparser; base of parameres not parallel laterally ( Fig. 15 )......................................................... Oodescelis ( Acutoodescelis ) punctatissima emmerichi Kaszab, 1940 - Elytral punctures smaller than those on pronotum but much sparser; base of parameres more parallel laterally ( Fig. 17 ).......................................... Oodescelis ( Acutoodescelis ) punctatissima henanana Bai & Ren , subsp. nov. 6. Protibiae club-shaped (basal half thin, widening into club-shaped from middle to apex) ( Figs. 5–6 ); parameres nearly as long as phallobase (subgenus Clavatoodescelis )................................................................. 7 - Protibiae evenly widening from base to apex ( Figs. 7–8, 10 ); or protibiae axe-shaped (basal half thin, inner side strongly widening into axe-shaped from middle to apex) ( Figs. 9, 11–14 ); parameres much shorter than phallobase.................... 8 7. Length of the tibial club on protibiae much longer than width in ventral view; apex of parameres strongly hook-liked curved to dorsal side in lateral view ( Fig. 26 )............................ Oodescelis ( Clavatoodescelis ) oblonga ( Ballion, 1878 ) - Length of the tibial club on protibiae nearly as long as width in ventral view; apex of parameres weakly hook-liked curved to dorsal side in lateral view ( Fig. 24 )....................... Oodescelis ( Clavatoodescelis ) acutanguloides Kaszab, 1940 8. Protibiae evenly widening from base to apex ( Fig. 7 ); parameres not flattened, without longitudinal groove at middle, phallobase without lateral prominences or deep longitudinal groove (subgenus Convexoodescelis ).................................................................... Oodescelis ( Convexoodescelis ) brevipennis brevipennis (Kaszab, 1938) - Protibiae axe-shaped ( Figs. 9, 11–14 ); or protibiae evenly widening from base to apex ( Figs. 8, 10 ); parameres flattened, with longitudinal groove at middle, phallobase with lateral prominences and deep longitudinal groove (subgenus Ovaloodescelis ) 9 9. Protibiae evenly widening from base to apex ( Figs. 8, 10 ).................................................... 10 - Protibiae axe-shaped ( Figs. 9, 11–14 ).................................................................... 11 10. Pronotum narrowly depressed along lateral margins from base to middle; inner side of metatibiae weakly curved at middle; outer margins of parameres with sharp hooks at apex in dorsal view ( Fig. 29 ).................................................................................................. Oodescelis ( Ovaloodescelis ) ovalis ( Ballion, 1878 ) - Pronotum not depressed along lateral margins; inner side of metatibiae strongly curved at middle; outer margins of parameres with round hooks at apex in dorsal view ( Fig. 27 )................... Oodescelis ( Ovaloodescelis ) affinis ( Seidlitz, 1893 ) 11. Length of the axe shorter than half length of protibiae ( Fig. 14 ); outer margins of parameres with round hooks at apex in dorsal view ( Fig. 37 )............................................... Oodescelis ( Ovaloodescelis ) tibialis ( Ballion, 1878 ) - Length of the axe as long as half length of protibiae ( Figs. 9, 11–13 ); outer margins of parameres with obtuse or sharp hooks at apex in dorsal view ( Figs. 31, 33, 35 ).................................................................... 12 12. Outer margins of parameres with short and obtuse hooks at apex in dorsal view ( Figs. 33, 35 )........................ 13 - Outer margins of parameres with long and sharp hooks at apex in dorsal view ( Fig. 31 )............................. 14 13. Pronotum wider, not flattened laterally, depressed along lateral margins between base and middle; parameres long, narrowing forward from middle laterally ( Fig. 33 )..................... Oodescelis ( Ovaloodescelis ) similis similis (Kaszab, 1938) - Pronotal disc more convex, weakly flattened laterally, not depressed along lateral margins; parameres short, narrowing forward from base laterally ( Fig. 35 )................................. Oodescelis ( Ovaloodescelis ) subattenuata Egorov, 1991 14. Parameres long, apex hook-liked curved to dorsal side in lateral view.. Oodescelis ( Ovaloodescelis ) heydeni ( Seidlitz, 1893 ) - Parameres short, apex not hook-liked curved to dorsal side in lateral view ( Figs. 31–32 ).................................................................................... Oodescelis ( Ovaloodescelis ) pseudotibialis Skopin, 1973