Chelipoda delecta Collin

Published, First, 2007, The Hemerodromiinae (Diptera: Empididae) of New Zealand II. Chelipoda Macquart, Zootaxa 1537 (1), pp. 1-88 : 27-28

publication ID	https://doi.org/ 10.11646/zootaxa.1537.1.1
persistent identifier	https://treatment.plazi.org/id/6A078784-BA7E-FFA6-AFFE-FF3A1B72F5A2
treatment provided by	Felipe
scientific name	Chelipoda delecta Collin
status

Treatment

13. Chelipoda delecta Collin View in CoL

[ Figs. 26–28 View FIGURES 23–28 , 96, 99 View FIGURES 91–103 ]

Chelipoda delecta Collin, 1928: 38 View in CoL .

Type material. Collin (1928) described Chelipoda delecta from one male and one female from Ohakune , 15.xii.1922 – 15.i.1923, T. R. Harris ; and a second male, same locality, xi.1922 [ BMNH]. Ohakune is in: New Zealand, North Island , RI. The male collected 15.xii.1922 – 15.i.1923 is damaged with head and abdomen missing. The male labelled: Ohakune, xi.1922, T. R. Harris [ BMNH] is here designated lectotype . The remaining male and female of Collin’s syntype series are here designated paralectotypes.

Additional material: North Is.; 2♂, 1♀, TO, Whirinaki Forest 13–14/xii/1986, ARP [ NMWC] ; 1♂, 2♀, TO, Pureora Forest , 29/xii/1986, ARP [ NMWC] ; 3♂, 2♀, TO, Tree Trunk Gorge , pan traps in beech forest, 11–14/ii/2006, HAO [ NMWC] .

Description. Male: length, 4mm (wet material).

Head: almost spherical, very rounded in lateral view, vertex and occiput merging in even curve; black; frons vertex and occiput dusted grey, face yellowish-grey dusted; lpo pale, uniserial becoming shorter and 2- serial below; upo and vt black, vt1 as long as divergent ocl; ocellar area with 6 small hairs behind ocl; a pair of minute ft. Antenna ( Fig. 96 View FIGURES 91–103 ) with scape and pedicel black and rather shining, postpedicel appearing paler due to covering of minute pile; scape rather longer than wide with distinct dorsoapical seta, pedicel globular with apical circlet of setae longest on outer face, postpedicel about 2.5X as long as wide, conical, arista 3X as long. Mouthparts yellow, palpi narrow with distinct apical seta.

Thorax: ground colour of pleura and pprnlb clear pale yellow; mesonotum, scutellum and metanotum orange-yellow, a narrow blackish lateral stripe on mesonotum between front and root of wing and often a much paler narrow median stripe which broadens and becomes paler posteriorly fading about prescutellar depression. Rather thinly dusted but without stripes on mesonotum or pleura. Notopleural suture rather more distinct than usual in local species. Thoracic setae black; dc2 strong, dc1, dc3 and dc5 only 0.5X as long as dc2; dc4 absent; pprn, unp and sa strong, lnp and pa smaller, ph very small; a few fine hairs above coxa at sides of prothoracic episternum; sct strong, converging and crossed.

Legs: pale clear yellow, slightly darker on apical tarsal segments. C 1 linear, only slightly inflated basally, as long as thorax, with short black bristly hairs in front and behind. F 1 about 4.5X as wide as long, moderately inflated below, linear above, widest 0.4 from base; femoral formula 2(2–2)/22(20–24)/12.5(12–15)/6.5(5–8), the av denticles very short, pv denticles longer, becoming more spine-like distally; no isolated ventral bristle basally. T 1 0.75X as long as F 1, a linear series of minute adpressed denticles ventrally forming a raised rim adjacent to which are series of small fine outstanding hairs and occasional perpendicular cilia; at2 and at3 of equal length, about 0.5X as long as at1. F 2 with 1 or 2 pv bristles near tip. F 3 with dorsal row of fine bristles almost as long basally as F 3 is deep; legs otherwise with only short hairs and bristles.

Wing: with veins brownish black and membrane uniformly brownish. Cell cup closed; vein A 1 strong, not fading basally and continued strongly beyond end of cup for about 2X length of CuA 2; apex of anal cell slightly produced (shape similar to C. consignata ), CuA 2 only slightly curved, strong throughout (not fading near junction with A 1) and not recurrent, joining A 1 slightly acutely or at a right angle. Halteres greyish yellow, stems darker. Squamae with black fringes.

Abdomen: brown dorsally, yellowish ventrally; tergites with dark hairs, longer on posterior margin, longest on tergite 5; sternites weakly haired. Genitalia ( Figs. 26–28 View FIGURES 23–28 ) with epandrial lobes distinctly hairy, very narrow, pointed apically, broader basally, strongly sclerotized posteriorly, weakly sclerotized (almost transparent) anteriorly. Hypandrium separated from epandrium, strongly sclerotized only about posterodorsal area and a narrow band posteriorly at sides which also bear distinct small posteriorly directed bristles. Cercus separate from and subequal to epandrial lobe, apparently completely lacking distinct setae. Postgonite ( Fig. 28 View FIGURES 23–28 ) claw- shaped with 6 –7 pointed processes, longest dorsally, each with a distinct terminal seta. Phallus not strongly looped, only slightly sigmoid distally, positioned between two conspicuous processes with flattened spatulate apices.

Description. Female: length = 5mm (wet material).Very similar to male but tergites weakly haired. Terminal papillae dark, slender. Femoral formula 2(2–2)/23.5(21–25)/14.5(12–16)/6(5–7).

Comments. C. delecta is a large, distinctive species with clear yellow pleura; A 1 strong, continuing well beyond end of cup and only 2 av spines on F 1. All records are from forested locations on North Island’s Volcanic Plateau from November to February.