Campsicnemus popeye Evenhuis

Evenhuis, Neal L., 2013, The Campsicnemus popeye species group (Diptera: Dolichopodidae) from French Polynesia, Zootaxa 3694 (3), pp. 271-279 : 278

Campsicnemus popeye Evenhuis , sp. nov.

( Fig. 6 )

Diagnosis. Most similar to C. moorea , sp. nov. but can be separated from it by the setation of the mid tibia: the presence of a patch of short stubby setae subbasally on the mesal surface in C. popeye (these setae longer and much more conspicuous in C. moorea ), the absence of a row of long strong setae in the medial third of the lateral surface (this row strong and conspicuous in C. moorea ), and the mesal surface with a row of 5–7 long curved setae from bend to tibial apex along the mesal surface (this row only with 2–3 such setae and they are absent subapically in C. moorea ).

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 brown, yellow medially, 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. 6 ) slightly bowed and flared, widest at apical third, with row of short fine setae along lateral surface ( Fig. 6 b, s3), dense long curled hairs at bend of mesal surface, 5–7 long thick curved setae admixed with these hairs from bend to apex ( Fig. 6 b, s2), single thick strong curved setae near midpoint on lateral surface, row of short stubby setae subbasally on mesal surface ( Fig. 6 a, s1), ring of 3 strong setae apically, admixed with dense patch of short black setae (MSSC). IIt1 long, about 2.5 times length of IIt2, with row of stiff spines mesally, fine long 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 times width; tarsi brown; tergites II–V with yellow laterally.

Types. HOLOTYPE ♂ (BPBM Type 16,658) [BPBM 101254] and PARATYPE ♀ [BPBM 101255] from FRENCH POLYNESIA: Society Is: TAHITI NUI: Mt. Marau, 730 m, 14–15.VII.2006, yellow pan trap, N. Evenhuis. OTHER PARATYPES: FRENCH POLYNESIA: Society Is: TAHITI NUI: 2 ♂ [BPBM 101256], Mt. Marau, 1350 m, 11–20.v.2006, 21–30.v.2006, Malaise trap, E. Claridge; 2 ♂ [BPBM 101257], 6 ♀ [BPBM 101258], same data except: 1170 m, 10.v.2006. TAHITI ITI: 1 ♂ [BPBM 101259], 1 ♀ [BPBM 101260], Mt. Teatara, mossy forest on north slope, 980 m, 7.ix.2006, D.A. Polhemus; 1 ♂ [BPBM 101261], Taiarapu, above Vaiufaufa, 900 m, 24–25.ix.1977, S.L. Montgomery. Holotype in BPBM. Paratypes in UCB and BPBM. All specimens are preserved in ethanol except for the pinned ♂ collected by Montgomery.

Etymology. The specific name derives from the American cartoon character “ Popeye the Sailor Man”, who had swollen forearms; and refers to the swollen mid tibia of the males. The name 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.