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.

Figures

FIGURES 1 – 18. Dorsal habitus color photographs of the Oriental species of the tribe Bothriomirini: 1, 2 — Bothriomiris dissimulans, Ƥ and 3: Malacca, Perak; 3 — Bothriomiris lugubris (lectotype); 4 — Bothriomiris sulawesicus, 3: Indonesia: Sulawesi Utara, Dumoga-Bone N. P; 5 — D. cognata (holotype); 6 — D. colubrina (holotype); 7 — D. conspersa; 8 — D. kerzhneri (paratype, 3); 9 — D. kotejai (paratype); 10 – 11 — D. tenmalai: 10 — paratype, Ƥ, 11 — holotype, 3; 12 — D. webbi (holotype); 13 – 14 — D. spatulatiformis: 13 — paratype, 14 — holotype; 15 — D. tibialis (3: Malacca, Perak); 16 — D. ulu (holotype); 17 — D. viklundi (holotype); 18 — L. scutellaris, Ƥ: Sarawak: Gunong Mulu Nat. Park; Long Pala base camp, ii – vii 1978.

FIGURES 74 – 79. Scanning electron micrographs of Dashymenia tenmalai: 74 — structure and vestiture of antennal segment I and basal portion of antennal segment II; 75 — structure and vestiture of antennal segment II; 76 – 77 — structure and vestiture of hemelytron; 78 — structure and vestiture of membrane; 79 — pygophore, dorsal view.

FIGURES 80 – 86. Male genitalia of Dashymenia tenmalai (80 – 82) and Dashymenia webbi (83 – 86). D. tenmalai: 80 — endosoma, dorsal view; 81 — left paramere, right lateral view; 82 — right paramere, dorsal view. D. webbi: 83 — pygophore, dorsal view; 84 — endosoma, dorsal view; 85 — left paramere, right lateral view; 86 — right paramere, dorsal view. AES = anterior endosomal sclerite; AP = aperture of pygophore; DSS = sclerotized portion of ductus seminis inside endosoma; MES = mesial endosomal sclerite; PES = posterior endosomal sclerite. Scale bars 0.1 mm.

FIGURES 57 – 63. Male genitalia of Dashymenia cognata (57 – 59) and Dashymenia colubrina (60 – 63). D. cognata: 57 — endosoma, dorsal view; 58 — endosomal sclerite PES, ventral view; 59 — left paramere, right lateral view. D. colubrina: 60 — endosoma, dorsal view; 61 — endosomal sclerite PES, ventral view; 62 — left paramere, right lateral view; 63 — right paramere, dorsal view. AES = anterior endosomal sclerite; DSS = sclerotized portion of ductus seminis inside endosoma; MES = mesial endosomal sclerite; PES = posterior endosomal sclerite. Scale bars 0.1 mm.