Campsicnemus taratara Evenhuis

Evenhuis, Neal L., 2009, Review of Campsicnemus (Diptera: Dolichopodidae) of the Marquesas, French Polynesia, with description of four new species groups, Zootaxa 2004, pp. 25-48 : 42

Campsicnemus taratara Evenhuis , new species

( Figs. 13 , 20 )

Diagnosis. Distinguished from its congeners in the hihiroa group by the short and swollen mid tibia bearing long black spines and the mid basitarsus bearing a single long seta and one short wavy seta (the other species in this group have one or two pairs of long setae).

Description. Male. Body length: 2.6 mm. Wing length: 2.2 mm.

Head. Black, face dark brown to black with reddish highlights, paler brown near clypeus; oc and vt black, about one-half length of antennal arista; front, occiput, and vertex black with blue highlights; face constricted at middle, almost holoptic, eyes separated below antennae by width of 1–2 ommatidia; palp small, dark brown; proboscis brown, extending below eye in lateral view; antennal segments black to brown; postpedicel and arista broken off and missing.

Thorax: Mesoscutum, scutellum, and pleura brown throughout, with a few metallic bluish highlights dorsolaterally; thoracic setae black: 1 + 3 dc; 2 np; 2 ph; 1 pa; 1 + 1 sc; ac absent; halter stem and knob white.

Legs: CI pale brown, remainder of legs brown; TI with 1 subapical and 1 apical tibial comb, remainder of foreleg unmodified, without MSSC; FII with 7 strong black setae on mesal surface; hind leg unmodified, without MSSC; TiII swollen with greatest width at apical one-third, with 2 long setae mesally and single strong seta subbasally on lateral surface (MSSC), single strong setae apically on lateral surface. IIt1 (Fig. xx) short, about one-fourth length of IIt2, with 1 very long strong black setae (length subequal to second tarsomere) and 1 short wavy black seta on mesal surface (MSSC). Remainder of leg segments without MSSC.

Wing: pale smoky throughout; posterior crossvein perpendicular to vein M.

Abdomen. Brown with short black hairs dorsally on each tergite; tergal interstices whitish; sternites yellowish brown. Hypopygium brown with paler brown cerci, not dissected.

Female. Unknown.

Types. Holotype ɗ (BPBM Type 16,755) [BPBM 101306] from FRENCH POLYNESIA: Marquesas: HIVA OA: Mt. Temetiu, 3400 ft [1036 m], 9°47'56"S, 139°04'45"W, 15 Aug 2001, mossy logs in gully, D.A. Polhemus (see Fig. 13 ). Holotype in BPBM.

Etymology: The specific epithet derives from the Tahitian taratara , meaning “spear, thorn”; referring to the characteristic long black spines on the mid tibia.

Figures

FIGURES 10 – 13. Marquesan habitats. 10. Fatu Hiva, Omoa River: type locality for Campsicnemus cheesmanae, n. sp. and C. englundi, n. sp. 11. Ua Pou, Pouaoa River: habitat for C. gladiator, n. sp. 12. Hiva Oa, Vaiao River: habitat for C. uncleremus Evenhuis and C. dytei, n. sp. 13. Hiva Oa, Mt. Temetiu: habitat for C. hihiroa, n. sp. and C. taratara, n. sp.

FIGURES 17 – 20. Campsicnemus hihiroa group legs. 17. C. dytei, fore tibia. 18 – 20. Mid basitarsi. 18. C. hihiroa, n. sp., 19. C. dytei, n. sp. 20. C. taratara, n. sp.