Thyestetha
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publication ID |
1175-5326 |
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persistent identifier |
https://treatment.plazi.org/id/03A887C6-A254-FFF0-B1D2-3DF0BCD1F869 |
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treatment provided by |
Plazi |
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scientific name |
Thyestetha |
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Key to the species of Thyestetha
1 Elytral disc glabrous, impunctate ( Figs. 11, 13–14, 18). Rostral canal subglabrous................................... 2
1 ’ Elytral disc with distinct strial punctures ( Figs. 10, 12, 15–17). Rostral canal at least between procoxae squamose......... 5
2 Prothorax and elytra with colored lustre ( Figs. 9, 18). Elytra 0.8 X wider than long...... T. splendens Eberle & Riedel sp. n.
2 ’ Prothorax and elytra polished, but without colored lustre. Elytra ca. 1.0 X as wide as long............................ 3
3 Elytra ferruginous except apical half laterally black ( Fig. 11). Aedeagus in profile less markedly curved ( Fig. 40)..................................................................................... T. discolor Eberle & Riedel sp. n.
3 ’ Elytra uniformly black. Aedeagus in profile markedly curved ( Figs. 42, 46)........................................ 4
4 Sides of aedeagus subapically converging in straight line ( Fig. 41)...................... T. glabra Eberle & Riedel sp. n.
4 ’ Sides of aedeagus subapically converging in sinuate line ( Fig. 45)...................... T. lubrica Eberle & Riedel sp. n.
5 Elytral disc with minute punctures; interstices between punctures 4– 6 X their diameter; female elytral apex medially distinctly emarginate.............................................................. T. emarginata Eberle & Riedel sp. n.
5 ’ Elytral disc with small punctures; interstices between punctures <4 X their diameter; female elytral apex without emargination.................................................................................................... 6
6 Elytra black. Apex of aedeagus weakly curved ventrad ( Fig. 50)....................... T. oblita Eberle & Riedel sp. n.
6 ’ Elytra ferruginous, sometimes very dark. Apex of aedeagus markedly curved ventrad ( Figs. 38, 48, 52).................. 7
7 Habitus elongate; elytra usually ferruginuous, sometimes black, apex extended ( Figs. 6, 15, 69–70). Rostral canal and marginal carina densely covered with broad whitish scales. Aedeagus with sides apically converging in sinuate line ( Fig. 47).. T. nitida
7 ’ Habitus shorter, ovate; elytra black, apex less distinctly extended ( Figs. 1, 8, 10, 17). Rostral canal only between procoxae squamose; marginal carina bordered with small whitish scales. Aedeagus with sides apically converging in straight line ( Figs. 37, 51).............................................................................................. 8
8 Interstices between punctures of elytral striae 1– 3 X diameter of punctures; male metafemur in apical third with weakly pro- truding posteroventral ridge (Fig. 27)......................................... T. puncticollis Eberle & Riedel sp. n.
8 ’ Interstices between punctures of elytral striae 2– 4 X diameter of punctures; male metafemur in apical third with sharply pro- truding posteroventral ridge (Fig. 26)........................................................... T. carbonaria
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