Campsicnemus moorea Evenhuis

Evenhuis, Neal L., 2013, The Campsicnemus popeye species group (Diptera: Dolichopodidae) from French Polynesia, Zootaxa 3694 (3), pp. 271-279 : 276-277

Campsicnemus moorea Evenhuis , sp. nov.

( Fig. 5 )

Diagnosis. Most similar in appearance to C. popeye , sp. nov. but can be separated from it by the mid tibia possessing a row of black setae mesoapically (absent in this are of the mid tibia in C. popeye ) and the postpedical being longer (4.0 times width) than in C. popeye (2.5 times width).

Description. Male. Body length: 3.0– 3.2 mm. Wing length: 3.1–3.6 mm. Head: Black, face dark brown, paler brown near clypeus; oc and vt black, about one-third length of antennal arista; front, occiput, and vertex black with blue highlights; face constricted at middle, eyes almost holoptic, contiguous below antennae for length of 3–4 ommatidia; palpus small, brown; proboscis brown, extending below eye in lateral view; antennal segments black to brown; postpedicel yellow basally, brown apically, long, lanceolate, length about 4.0 x width; arista slightly longer than head height. Thorax: Yellow; mesoscutum with paired admedian brown vittae, flared, becoming thickest posteriorly; thoracic setae black: 4 dc; 2 np; 2 ph; 1 pa; 1 sc; ac absent; halter stem white, knob brownish. Legs: Coxae yellowish white (except CII with single thin brown longitudinal stripe medially), CI with three black setae apically; femora yellow brown, FIII yellowish brown basally, becoming darker brown on dorsoapical two-thirds; remainder of legs yellowish brown; foreleg unmodified, without MSSC; FII with 2 rows of black setae ventrally, patch of thicker setae subapically on ventral surface; FIII with row of 6 long strong black setae on basal half of ventral surface (MSSC). TiII ( Fig. 5 ) slightly bowed and flared, widest subapically, with rows of stiff setae along mesal, mesolateral, and lateral surfaces, row of long stiff setae on basal half of lateral surface ( Fig 5 b, s3), and dense long curled hairs on apical one-fourth of mesal surface, 2–3 long thick curved setae admixed with these hairs at bend and apex, absent subapically ( Fig. 5 b, s2), single thick strong curved setae at midpoint on lateral surface, row of thick setae subbasally on mesal surface ( Fig. 5 b, s1), ring of 4–5 strong setae apically, admixed with dense patch of short black setae (MSSC). IIt1 long, about 2 x length of IIt2, with 2 rows of dense hairs laterally (MSSC). IIt2 with sparser long hairs laterally (MSSC). Remainder of leg segments without MSSC. Wing: Pale smoky throughout. Abdomen: Tergites brown except for yellowish laterally on tergites II–IV, with short black hairs dorsally on each tergite, a few longer hairs laterally; sternites yellowish white. Hypopygium yellowish, not dissected. Female. As in male except as follows: lack of MSSC; antennal postpedicel length about 1.5 x width; tarsi brown; tergites II–V with yellow laterally.

Types. HOLOTYPE ♂ (BPBM 16,656) and 2 ♀ PARATYPES from FRENCH POLYNESIA: Society Is: Moorea : Tohiea summit area, ferns in small gulch, 1150 m, 12.ix.2006, D.A. Polhemus. OTHER PARATYPES: FRENCH POLYNESIA: Moorea : 3 ♀, same data except 1205 m, ferns on ridge crest, day fog. Holotype and paratypes in BPBM.

Etymology. The specific epithet derives from type locality on the island of Moorea and is treated here as a noun in apposition.

Figures

FIGURES 5 – 6. Campsicnemus male mid tibiae. 5. C. moorea Evenhuis, sp. nov.; a. right leg, mesal view; b. left leg, lateral view. 6. C. popeye Evenhuis, sp. nov.; a. right leg, mesal view; b. left leg, lateral view. Abbreviations: s 1 = setal area 1 (subbasal row of setae); s 2 = setal area 2 (row of strong curved setae from bend to apex); s 3 = setal area 3 (row of setae on basal half of tibia). Scale bars = 0.1 mm.