Chelipoda rakiuraensis Published 2007, sp. n.
Creators: name: Published, First
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Empididae
Chelipoda
Chelipoda rakiuraensis

description: 38. <i>Chelipoda rakiuraensis</i> sp. n. [Figs. 56, 109] <b>Type material.</b> Holotype ♂: <b>New Zealand</b>, Stewart Is., SI, Murray Beach, 46.7888°N, 168.0017°E, NZMG5368450 N 2128220E, 19/i/2000, RKD [NZAC]. Paratype: 1♂, SI, Stewart Is., Christmas Village Hut, 46.7449°N, 167.9745°E, NZMG5373190 N 212584E, 18/i/2000, RKD [NMWC]. <b>Etymology:</b> <i>Rakiura</i> is the Maori name for the type locality of the species. <b>Description. Male:</b> length 2.5mm (wet specimen). <i>Head</i>: black, dusted grey; rather quadrate but slightly dorsoventrally flattened, ocelli mid way between antennae and vertex, eyes almost touching for a short distance on frons, lower face slightly but distinctly produced at edge of mouth; setae black, <i>ocl</i> short but strong, similar length as verticals; <i>upo</i> contiguous with and similar strength as <i>vt2</i>, becoming smaller below; <i>lpo</i> very weak, lower occiput with very minute pale pile in front and a cluster of distinct black setae on either side posteriorly. Antennae (Fig. 109) yellow, darker on postpedicel apically; scape 2X as long as wide, a distinct seta dorsally; postpedicel 7X as long as wide, evenly pointed, arista bare, less than 0.1X as long. Proboscis black, shorter than head is deep; labellum yellow; palpi small with long subapical bristle. <i>Thorax</i>: dark reddish brown, rather long, katepisternum almost linear below in profile (not strongly curved behind coxal insertion); <i>dc1</i> absent; <i>dc2</i> and <i>dc3</i> equally strong; <i>dc4</i> and <i>dc5</i> absent; <i>ph</i> well developed, almost as strong as <i>pprn</i>; <i>sa</i> very strong; anatergite with 4–5 bristles arranged vertically in linear series. <i>Legs</i>: brownish yellow, apical 2 tarsal segments blackish, segments 2 and 3 white. C 1 short, 0.6X length of thorax, slightly inflated, 4X as long as wide, a line of bristly hairs in front becoming smaller and multiserial distally. F 1 1.3X as long as C 1; moderately inflated, 4.5X as long as wide; 3 very strong <i>av</i> spines in basal 0.3 almost in line with a series of about 17 much smaller bristles which are denticle-like distally, becoming slightly larger, blunter and peg-like basally; <i>pv</i> series of hair-like spines longest basally. T 1 0.95X as long as F 1, linear, hardly geniculate basally, a linear series of about 28 minute adpressed denticles ventrally. C 2 and C 3 with anteroapical fan of black bristles. Legs otherwise simple with only fine hairs and bristles; <i>at2</i> 0.7X as long as <i>at3</i>. <i>Wing</i>: with membrane slightly darkened, veins brown; venation simple, cell <i>cup</i> open, vein A 1 completely absent, CuA 2 present as a short stub; Sc virtually reaching costa, fading only at extreme apex; costal bristle strong. <i>Abdomen</i>: uniformly dark reddish brown, tergites with black bristly hairs on disc and margins, strongest on tergite 6 posteriorly. Terminalia (Fig. 56) small, reflexed upwards; hypandrium and epandrium not fused; epandrium bilaterally divided, each lobe small with strong setae apically and on posterior margin; hypandrium rather small, a pair of very strong setae posteroapically; subepandrial process very large (emerging well beyond epandrial lobe in lateral view), strongly curved, apex reaching almost to tip of phallus; cerci free, very large, bearing very strong setae; phallus long, gently sinuous, not strongly curved. <b>Female:</b> unknown. <b>Comments</b>. <i>C. rakiuraensis</i> is a dark reddish brown species in the <i>C. trepida</i> -group with C 1 very short, <i>dc3</i> present, elongated antennae and katepisternum almost linear in profile. It is only known from forest sites on Stewart Island in January.
description: Published as part of <i>Published, First, 2007, The Hemerodromiinae (Diptera: Empididae) of New Zealand II. Chelipoda Macquart, pp. 1-88 in Zootaxa 1537 (1)</i> on pages 57-58, DOI: 10.11646/zootaxa.1537.1.1, http://zenodo.org/record/5088638