Key to Platythyrea of southeast Asia

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Platythyrea

1

  • Frontal carinae very widely spaced, not continuing beyond level of posterior margin of antennal insertions (Fig. 7A); propodeal spiracle opening circular . . . . . 2
Figure 7.
  • Frontal carinae relatively narrowly separated, extending far beyond level of posterior margin of antennal insertions where space between them is very narrow (Fig. 7B); propodeal spiracle opening elliptical . . . . . 6

2

return to couplet #1

  • In dorsal view, posterior margin of petiole with 2-3 distinct spines, teeth or blunt angles (Fig. 8A, B) . . . . . 3
Figure 8.
  • In dorsal view, posterior margin of petiole without distinct spines, teeth or sharp angles (Fig. 8C) . . . . . 5

3

return to couplet #2

  • In dorsal view, posterior margin of petiole clearly concave with distinct lateral blunt angles; petiole almost as long as high . . . . . 4
  • In dorsal view, posterior margin of petiole with 3 distinct spines; petiole longer than high (Fig. 8B) . . . . . Platythyrea tricuspidata
Platythyrea tricuspidata casent0281865 h 1 high.jpg
Platythyrea tricuspidata casent0281865 p 1 high.jpg

4

return to couplet #3

  • In profile view, propodeum armed with a pair of short teeth or tubercles (Fig. 9); lateral face of pronotum punctate with dense foveae . . . . . Platythyrea quadridenta
Platythyrea quadridenta casent0260484 h 1 high.jpg
Platythyrea quadridenta casent0260484 p 1 high.jpg
Figure 9.
  • In profile view, propodeum unarmed; dorsum curving evenly into declivity (see fig. 28 in Brown 1975); lateral face of pronotum punctate with sparse foveae . . . . . Platythyrea bidentata

5

return to couplet #2

  • In dorsal view, petiole clearly longer than broad; antennal scape relatively short, not reaching posterolateral corner of head . . . . . Platythyrea parallela
Platythyrea parallela casent0102279 head 1.jpg
Platythyrea parallela casent0102279 profile 1.jpg
  • In dorsal view, petiole almost as long as broad; antennal scape relatively long, slightly extending beyond posterolateral corner of head . . . . . Platythyrea inermis
Platythyrea inermis casent0260498 h 1 high.jpg
Platythyrea inermis casent0260498 p 1 high.jpg

6

return to couplet #1

  • Head relatively shorter (CI 72–74); eye clearly larger (EL 0.20 mm with 11 ommatidia on longest axis); eye convex; dorsum and lateral face of head finely micropunctate without foveae; in profile view petiole clearly longer than high and in dorsal view node of petiole anteriorly as broad as posteriorly; ventral outline of petiole weakly convex . . . . . Platythyrea janyai sp. n.
Platythyrea janyai holotype THNHM-I-02392 F1-B.jpg
Platythyrea janyai holotype THNHM-I-02392 F1-A.jpg
  • Head relatively longer (CI 61–69); eye clearly smaller (EL 0.10 mm with 5 ommatidia on longest axis); eye flat; dorsum and lateral face of head finely punctate with dense shallow foveae; in profile view petiole slightly longer than high and in dorsal view node of petiole slightly narrower posteriorly; ventral outline of petiole feebly concave . . . . . Platythyrea clypeata
Platythyrea clypeata casent0281866 h 1 high.jpg
Platythyrea clypeata casent0281866 p 1 high.jpg

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