Dashymenia

Wolski, Andrzej & Gorczyca, Jacek, 2012, Plant bugs of the tribe Bothriomirini (Hemiptera: Heteroptera: Miridae: Cylapinae) from the Oriental Region: descriptions of eight new species and keys to Oriental genera and species of Bothriomiris Kirkaldy, Dashymenia Poppius, and Dashymeniella Poppius, Zootaxa 3412, pp. 1-41 : 18-19

Key to species of Dashymenia

1. Body smaller than 3.5 mm; antennal segment I short, shorter than half width of vertex, narrowed basally, strongly broadened

towards apex, nearly triangular in outline; sensory lobe of left paramere with characteristically curved process (see Gorczyca & Wolski 2006: Fig 3)......................................................... D. kerzhneri Gorczyca & Wolski - Body larger than 3.5 mm; antennal segment I longer than half width of vertex, usually cylindrical or slightly narrowed basally ( Fig. 74); sensory lobe of left paramere usually flattened or indistinctly convex..................................... 2

2. Scutellum entirely dark brown to black ( Fig. 7); antennal segment IV with relatively broad, dark brown or reddish annulation basally and apically ( Fig. 7)............................................................................. 3

- Scutellum with more or less developed, yellowish or orange tinge apically ( Figs. 5 –6, 10– 12); antennal segment IV entirely yellow to dirty yellowish............................................................................... 4

3. Antennal segment II with numerous brown spots ( Fig. 7)..................................... D. conspersa sp. nov.

- Antennal segment II brown, paler basally................................................ D. macgillavryi Poppius

4. Pronotum orange with broad, black patch along midline of posterior lobe and with broad, orange transverse stripe on corium apically; scutellum entirely orange......................................................... D. croesus (Distant)

- Pronotum dark brown to blackish, only with yellowish or orange tinge laterally, if pronotum entirely blackish, then dorsum is blackish with contrasting orange patch on scutellum and hemelytron apically; hemelytron entirely dark brown or with relatively narrow, orange patch on corium apically.............................................................. 5

5. Head entirely dark brown................................................................ D. remus (Distant)

- Head varying from yellow, sometimes with brownish tinges to reddish or brownish ( Figs. 5 –6, 9– 12)................... 6

6. Antennal segment I uniformly reddish or dark red ( Figs. 10–11); DSS long, straight, and sharply pointed ( D. tenmalai ) ( Fig. 80)................................................................................................. 7

- Antennal segment I yellowish, with reddish rings: one situated beyond base and other situated apically ( Figs. 5 –6, 12), if reddish rings absent, then yellow stripes at sides of pronotum well developed ( Fig. 9); DSS more or less distinctly curved, not sharply pointed ( Figs. 57, 60, 84)......................................................................... 8

7. Scutellum orange, with distinct dark brown patch medially, originating from base ( Figs. 10–11)....... D. tenmalai sp. nov.

- Scutellum black brown basally, yellow red apically........................................ D. convexicollis Poppius

8. Antennal segment I entirely yellow without reddish annulations; yellow stripes at sides of pronotum well developed, occupying nearly one third of its surface ( Fig. 9)............................................ D. kotejai Wolski & Gorczyca

- Antennal segment I yellowish, with reddish rings: one situated beyond base and other situated apically ( Figs. 5 –6, 12); yellow stripes at sides of pronotum distinctly narrower, hardly visible in dorsal view ( Figs. 5 –6, 12).......................... 9

9. Lateral yellow stripe on pronotum narrow, not visible in dorsal view ( Fig. 12); MES and PES almost straight and relatively small ( Fig. 84)........................................................................... D. webbi sp. nov.

- Lateral yellow stripe on pronotum broader, well visible in dorsal view ( Figs. 5–6); MES strongly curved, sharply pointed apically; PES composed of two sclerites: one large and hook-shaped, other distinctly narrowed toward apex ( Figs. 57, 60).... 10

10. PES with smaller sclerite obtuse and large hook-shaped sclerite without swelling posteriorly ( Figs. 60–61, arrows)............................................................................................. D. colubrina sp. nov.

- PES with smaller sclerite sharply pointed, hook-shaped sclerite with swelling posteriorly ( Figs. 57–58, arrows)................................................................................................. D. cognata sp. nov.