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