Dashymenia tenmalai Wolski & Gorczyca

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 : 28-31

Dashymenia tenmalai Wolski & Gorczyca sp. nov.

( Figures 10–11 , 65–82 )

Diagnosis. Dashymenia tenmalai is recognized by the following set of features: antennal segment I nearly cylindrical, entirely dark red to dark brown; pronotal pale, lateral stripes narrow, hardly visible in dorsal view ( Figs. 10–11 ); segment II somewhat flattened laterally ( Fig. 10 ); scutellum orange with a large, medial dark brown tinge originating from basal margin ( Figs. 10–11 ); DSS strongly broadened basally, remainder of the segment gradually becomes narrower and forming a sharply pointed apex ( Fig. 80 ).

D. tenmalai is most similar to D. cognata , D. colubrina , D, kotejai , and D. webbi in sharing pale lateral stripes on the pronotum. This species can, however, be distinguished by the coloration of the antennal segment I and the shape male genitalia.

Description. Male. COLORATION ( Figs. 10–11 ). Dorsum mostly dark brown with orange areas. Head. Dull yellowish, sometimes tinged with brown or red; antenna blackish dark brown; antennal segment I usually dark red, rarely dark brown; segment II varying from dark brown to blackish; segments III and IV dark brown; labium brown. Thorax. Pronotum. Dark brown, tinged with yellow or orange anteriorly and laterally. Scutellum. Orange, with distinct dark brown patch originating from basal margin, occupying most of medial portion of dorsal surface, not reaching apex. Thoracic pleura. Proepimeron varying from dull yellow to orange; remaining pleura dark brown; evaporative areas fuscous; peritreme brown. Hemelytron. Dark brown; clavus with yellowish or orange stripe along its inner margin (claval commissure yellowish to orange); corium with a medially situated and relatively broad orange patch in apical portion, contiguous with inner angle of cuneus; membrane fuscous to dark fuscous. Legs. Dark reddish brown, except for dull yellowish tarsi. Abdomen. Brown with dark brown areas. STRUCTURE AND VESTITURE ( Figures 10–11 , 66–79 ). Elongate oval; dorsal surface mixed with dense semirecumbent and erect setae. Head. Covered with relatively long, protruding setae; vertex and frons weakly rugose; vertex with two, somewhat convex tubercles, each contiguous with occipital carina and inner margin of each eye; antennal segment I covered with moderately dense, long, semirecumbent setae, segment nearly cylindrical, weakly narrowed basally; segment II weakly bicompressed, mixed with three types of setae: dense, long, semirecumbent setae (similar to those present on segment I but denser), fine, short, scale-like, sparse setae, and several protruding, bristlelike setae; segments III and IV shining, covered with moderately dense, semirecumbent, bristlelike setae; labium stout, apex reaching procoxae apically. Thorax. Scutellum. Scutellum somewhat convex. Thoracic pleura. Proepimeron deeply and coarsely punctate; mesepimeron with punctation occupying its dorsoposterior surface, remainder of mesepisternum smooth and heavily polished; metepisternum inpunctate. Hemelytron. Membrane with minor cell hardly visible; major cell rather small, rounded. Legs. Covered with moderately dense, almost recumbent setae; tarsomere II divided; pretarsal claw not toothed subapically. Abdomen. Weakly narrowed toward apex, covered with moderately dense setae.

Male genitalia. Endosoma ( Fig. 80 ). Weakly membranous; DSS strongly broadened basally, remainder of sclerite gradually narrowing towards apex and sharply pointed apically; AES rhomboid, strongly smaller than DSS; PES strongly membranous, with apical portion rounded. Left paramere ( Fig. 81 ). Somewhat rounded; apical process relatively long, moderately sharply pointed; sensory lobe somewhat convex. Right paramere ( Fig. 82 ). Right margin straight, left margin strongly rounded, basal process with left margin sinuate, right margin rounded; apical process thin, cylindrical, and curved.

Female. Coloration, structure and vestiture as in male.

Measurements. Ƥ / 3 (n=3, holotype measurements in parentheses): body length: 4.6/4.0–4.6 (4.0), width 2.05 /1.8–1.9 (1.8). Head. Length 0.25/0.25 (0.25), width 1.26/1.09–1.11 (1.09), diameter of eye in dorsal view 0.28/0.26–0.28 (0.26). Antenna. Length of segment I 0.55/0.55 (0.55), II 1.33/1.36–1.4 (1.4), III and IV (holotype): III 0.47, IV 0.45. Labium. Length of segment I 0.36/0.25–0.34 (0.34), 0.34/0.34–0.36 (0.36), III 0.25/0.25 (0.25), IV 0.21/0.19–0.21 (0.21). Pronotum. Length 1.25/1.1–1.22 (1.22), width of anterior margin 0.9/0.9 (0.9), length of lateral margin 1.03/0.94–1.0 (0.94), width of posterior margin 1.8/1.65–1.7 (1.65).

Etymology. This species is named after the type locality – Tenmalai ( India) .

Distribution ( Fig. 65 ). India ( Tenmalai ).

Type material. Holotype 3: Tenmalai 500–800’, Travancore, S. India, 11–17-X-38; paratypes: 3 3 3, 2 Ƥ Ƥ: the same data as for holotype ( BMNH).

Figures

FIGURE 65. Distribution map of Dashymenia.

FIGURES 66 – 73. Scanning electron micrographs of Dashymenia tenmalai: 66 — body, left lateral view; 67 — head and pronotum, left lateral view; 68 — structure and vestiture of eye; 69, 70 — structure and vestiture of thoracic pleura; 71 — scent gland efferent system; 72 — structure and distribution of metafemoral trichobothria; 73 — single metaforal trichobothrium.

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 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.