Oodescelis, Motschulsky, 1845
publication ID |
https://doi.org/ 10.11646/zootaxa.4656.3.1 |
publication LSID |
lsid:zoobank.org:pub:9789BD3C-1DCE-4483-BDAD-A506B88C30FB |
persistent identifier |
https://treatment.plazi.org/id/03A687DC-3379-8871-97A4-2CFC8195F8A7 |
treatment provided by |
Plazi |
scientific name |
Oodescelis |
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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 View FIGURES 31–42 ).............. 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 View FIGURES 31–42 )................................................................................ 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 View FIGURES 15–30 )......................................................... Oodescelis (Acutoodescelis) punctatissima emmerichi Kaszab, 1940
- Elytral punctures smaller than those on pronotum but much sparser; base of parameres more parallel laterally ( Fig. 17 View FIGURES 15–30 ).......................................... 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 View FIGURES 5–14 ); parameres nearly as long as phallobase (subgenus Clavatoodescelis )................................................................. 7
- Protibiae evenly widening from base to apex ( Figs. 7–8, 10 View FIGURES 5–14 ); or protibiae axe-shaped (basal half thin, inner side strongly widening into axe-shaped from middle to apex) ( Figs. 9, 11–14 View FIGURES 5–14 ); 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 View FIGURES 15–30 )............................ 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 View FIGURES 15–30 )....................... Oodescelis (Clavatoodescelis) acutanguloides Kaszab, 1940
8. Protibiae evenly widening from base to apex ( Fig. 7 View FIGURES 5–14 ); 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 View FIGURES 5–14 ); or protibiae evenly widening from base to apex ( Figs. 8, 10 View FIGURES 5–14 ); 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 View FIGURES 5–14 ).................................................... 10
- Protibiae axe-shaped ( Figs. 9, 11–14 View FIGURES 5–14 ).................................................................... 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 View FIGURES 15–30 ).................................................................................................. 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 View FIGURES 15–30 )................... Oodescelis (Ovaloodescelis) affinis ( Seidlitz, 1893)
11. Length of the axe shorter than half length of protibiae ( Fig. 14 View FIGURES 5–14 ); outer margins of parameres with round hooks at apex in dorsal view ( Fig. 37 View FIGURES 31–42 )............................................... Oodescelis (Ovaloodescelis) tibialis ( Ballion, 1878)
- Length of the axe as long as half length of protibiae ( Figs. 9, 11–13 View FIGURES 5–14 ); outer margins of parameres with obtuse or sharp hooks at apex in dorsal view ( Figs. 31, 33, 35 View FIGURES 31–42 ).................................................................... 12
12. Outer margins of parameres with short and obtuse hooks at apex in dorsal view ( Figs. 33, 35 View FIGURES 31–42 )........................ 13
- Outer margins of parameres with long and sharp hooks at apex in dorsal view ( Fig. 31 View FIGURES 31–42 )............................. 14
13. Pronotum wider, not flattened laterally, depressed along lateral margins between base and middle; parameres long, narrowing forward from middle laterally ( Fig. 33 View FIGURES 31–42 )..................... 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 View FIGURES 31–42 )................................. 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 View FIGURES 31–42 ).................................................................................... Oodescelis (Ovaloodescelis) pseudotibialis Skopin, 1973
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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