Thyestetha, Pascoe, 1865
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publication ID |
https://doi.org/ 10.11646/zootaxa.3355.1.1 |
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DOI |
https://doi.org/10.5281/zenodo.5893752 |
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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 View in CoL
1 Elytral disc glabrous, impunctate ( Figs. 11, 13–14, 18 View FIGURES 10 – 18 ). Rostral canal subglabrous................................... 2
1’ Elytral disc with distinct strial punctures ( Figs. 10, 12, 15–17 View FIGURES 10 – 18 ). Rostral canal at least between procoxae squamose......... 5
2 Prothorax and elytra with colored lustre ( Figs. 9 View FIGURES 1 – 9 , 18 View FIGURES 10 – 18 ). Elytra 0.8 X wider than long...... T. splendens Eberle & Riedel View in CoL 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 View FIGURES 10 – 18 ). Aedeagus in profile less markedly curved ( Fig. 40 View FIGURES 37 – 54 )..................................................................................... T. discolor Eberle & Riedel View in CoL sp. n.
3’ Elytra uniformly black. Aedeagus in profile markedly curved ( Figs. 42, 46 View FIGURES 37 – 54 )........................................ 4
4 Sides of aedeagus subapically converging in straight line ( Fig. 41 View FIGURES 37 – 54 )...................... T. glabra Eberle & Riedel View in CoL sp. n.
4’ Sides of aedeagus subapically converging in sinuate line ( Fig. 45 View FIGURES 37 – 54 )...................... T. lubrica Eberle & Riedel View in CoL 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 View in CoL 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 View FIGURES 37 – 54 )....................... T. oblita Eberle & Riedel View in CoL sp. n.
6’ Elytra ferruginous, sometimes very dark. Apex of aedeagus markedly curved ventrad ( Figs. 38, 48, 52 View FIGURES 37 – 54 ).................. 7
7 Habitus elongate; elytra usually ferruginuous, sometimes black, apex extended ( Figs. 6 View FIGURES 1 – 9 , 15 View FIGURES 10 – 18 , 69–70). Rostral canal and marginal carina densely covered with broad whitish scales. Aedeagus with sides apically converging in sinuate line ( Fig. 47 View FIGURES 37 – 54 ).. T. nitida View in CoL
7’ Habitus shorter, ovate; elytra black, apex less distinctly extended ( Figs. 1, 8 View FIGURES 1 – 9 , 10, 17 View FIGURES 10 – 18 ). Rostral canal only between procoxae squamose; marginal carina bordered with small whitish scales. Aedeagus with sides apically converging in straight line ( Figs. 37, 51 View FIGURES 37 – 54 ).............................................................................................. 8
8 Interstices between punctures of elytral striae 1– 3 X diameter of punctures; male metafemur in apical third with weakly protruding posteroventral ridge (Fig. 27)......................................... T. puncticollis Eberle & Riedel View in CoL sp. n.
8’ Interstices between punctures of elytral striae 2– 4 X diameter of punctures; male metafemur in apical third with sharply protruding posteroventral ridge (Fig. 26)........................................................... T. carbonaria View in CoL
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