Calophytus schlingeri, Irwin & Winterton & Metz, 2020

Irwin, Michael E., Winterton, Shaun L. & Metz, Mark A., 2020, New stiletto flies from New Caledonia (Therevidae, Agapophytinae), ZooKeys 984, pp. 83-132 : 83

publication ID	https://dx.doi.org/10.3897/zookeys.984.53587
publication LSID	lsid:zoobank.org:pub:D8B945AE-6209-4957-8BB1-D96DDBB5AA44
persistent identifier	https://treatment.plazi.org/id/76F032BE-4F50-46B1-908E-146A0BB5E1EE
taxon LSID	lsid:zoobank.org:act:76F032BE-4F50-46B1-908E-146A0BB5E1EE
treatment provided by	ZooKeys by Pensoft
scientific name	Calophytus schlingeri
status	sp. nov.

Treatment

Calophytus schlingeri sp. nov. Figs 5C View Figure 5 , 6A View Figure 6 , 7B View Figure 7 , 16 View Figure 16 , 17 View Figure 17 , 18 View Figure 18 , 22 View Figure 22 , 23A View Figure 23 , 31A View Figure 31

Diagnosis.

Flagellum shorter than scape; single row of postocular setae dorsally; scutum dark except for orange suffusion on notopleural callus; legs yellow except for tarsi dark apically; wing with dark infuscation, fenestrate apically; male abdomen with silver velutum pubescence.

Description.

Length 8.5-10.7 mm. Head. Glossy black. Frons smooth, raised around base of antenna. Eyes separated by slightly more than 2 × width of median ocellus. Occiput black with silver or gold pubescence laterally, extending ventrally onto gena, admixed laterally and ventrally with light brown to white, fine setae; parafacial silver pubescent as elongate wedge shape, extending ventrally along margin of buccal area. Postocular macrosetae on occiput few in number, arranged dorsally in single row in both sexes, typically black, sometimes with orange suffusion. Scape 0.8 × head length; yellow basally, black apically. Pedicel short, 1/8 length of scape, black, sparsely yellow pubescent, with numerous short, brown setae. Basal flagellomere ½× length of scape; elongate, gradually tapering to a blunt point apically with short, black setae covering entire length. Second flagellomere cylindrical. Third flagellomere subequal in length of second. Style subequal in length to third flagellomere, spiculate. Palpus more or less cylindrical, slightly capitate at apex; yellow basally, black at apex; yellow pubescent basally, black pubescent at apex; yellow setose basally, black setose at apex. Mouthparts yellow. Thorax. Dark brown to black, except prothorax, postpronotal lobe, and notopleuron yellow; prosternum, ventral proepimeron, posterodorsal katepisternum, posterior scutum, scutellum, subscutellum, metanepisternum, metepimeron, meron and metakatepisternum overlain with silver pubescence; pronotum, anatergite, and dorsal proepimeron gold-yellow pubescent; scutum with faint dorsocentral silver pubescent stripes; macrosetae black (np: 2; sa: 1; pa: 1, dc: 0, sc: 1); scutum with relatively short setae. Legs. Yellow, except for black suffusion on foretarsus and hind coxa, legs with pale setae except dark setae apically on femora and on all tarsi; coxae silver pubescent, especially on hind coxa; hind femur with posteroventral macroseta yellow; hind basal tarsomere with admix of white and gold setae ventrally and medially. Coxae with yellow setae anteriorly, hind coxa with two black lateral setae. Forecoxa with four marginal and one submarginal anteroventral, black and yellow macrosetae. Midcoxa with two marginal and three submarginal, anteroventral, black and yellow macrosetae. Hind coxa with anteroventral margin extended ventrally in a short point with three marginal, black or yellow macrosetae. Wing. Strongly marked, variable in shape, irregular. Costal cell with pale yellow infuscation; brown infuscation in cells sc, r adjacent to pterostigma, basal portions of r1 and r2+3, and r4+5, d, bm, basal portions of m3 and cua1, cup, and entire wing apex; infuscated areas also with dark microtrichia, hyaline areas of membrane largely void of microtrichia; pterostigma brown. Venation brown, except costa and R at base of wing gold; cell m3 widely open at wing margin. Haltere yellow. Abdomen. Segments mostly dark brown, males with tergites I-III and sternites II-V with portion of medial area lighter, light brown to dark yellow; female usually uniform dark brown although sometimes with lighter brown to dark yellow areas laterally on tergite II; male with tergites II-VI with silver velutum pubescence; tergites I-III with sparse short, pale, fine setae, longer laterally; tergite IV admixed with gold and black setae; remaining tergites with black setae. Genitalia. Male: epandrium narrowed posteriorly, with uniform scattered, dark setae. Cercus relatively narrow, rounded posteriorly. Subepandrial sclerite narrow, 1/3 width of epandrium; partially sclerotised, lateral margins more strongly so. Gonocoxites with scattered elongate brown setae; slightly denser ventrally; outer gonocoxal process sub-triangular in profile; inner gonocoxal process uniformly narrow, curved medially, spatulate apically. Parameral sheath of aedeagus with ‘T’ -shaped dorsal apodeme, arms slightly bifurcated, ventral apodeme fork relatively short, lobes rounded, distiphallus straight; basiphallus bulbous, lateral ejaculatory apodeme narrow, band-like with lateral process; Ejaculatory apodeme robust. Female: tergite VIII wider than long; anteromedial, projection long and narrow, 1/3 × length of tergite VIII; posterior margin emarginated. Acanthophorite brown; acanthophorite spines brown admixed with short, brown setae. Sternite X sharply acute posteriorly. Spermathecal duct equal to four furcal lengths. Spermathecal sac duct equal to two furcal lengths; spermathecal sac ovoid, longer than wide; 1.5 × length of spermathecal sac duct. Variation. Some paratypes with frons sparsely pubescent; ventral parafacial variably silver and/or gold pubescent; all postocular macrosetae black; additional postocular macrosetae ventral to single dorsal row; apical 3/4 scape brown; basal flagellomere with covering of short, black, filiform setae variable from basal 1/4 to entire; notopleuron variably coloured light to dark brown; midcoxae variably gold to brown; coxae with anteroventral, marginal macrosetae number variable from 3-5 and variably coloured gold to black; hind coxa lateral macrosetae number variable, 0-2; wing infuscation variable in intensity and distribution.

Etymology.

Named in honour of the late Dr Evert I. Schlinger, who participated in the New Caledonian expeditions, from which much of the material for this paper was collected.

Comments.

Calophytus schlingeri sp. nov. is very similar to C. matilei sp. nov. and can be distinguished based on the pattern of silver pubescence on the face, pattern of wing infuscation and whether the mid- and hind coxae are largely dark yellow or brown. These are the only known species in the genus with silver velutum pubescence on the male abdomen. Specimens of Calophytus schlingeri sp. nov. were collected in a variety of habitats including dry sclerophyll forest, rainforest and maquis scrub (Fig. 31A View Figure 31 ). GenBank sequences for this species (see Winterton et al. 2016: table S1): KM885001 (28S rDNA), KM879117 (EF1a).

Specimens examined.

Holotype male, New Caledonia: Province Sud: Plaine des Lacs, 5 km E of Grand Lac, hand netted [-22.267, 166.967], 300 m, 22-25.I.1984, M. Pogue, M. Epstein (MEI030164, MNHN).

Paratypes. New Caledonia: Province Sud: 1 male, 2 females, Plaine des Lacs, 5 km E of Grand Lac, black light (UV) [-22.267, 166.967], 300 m, 22-25.I.1984, M. Pogue, M. Epstein (MEI030165, 03173-4, UMSP); 4 males, 3 females, Plaine des Lacs, 5 km E of Grand Lac, hand netted [-22.267, 166.967], 300 m, 22-25.I.1984, M. Pogue, M. Epstein, male, (MEI030161-3, 030166, 030175-7, FSCA, CASC); 1 female, Mt. Koghis, Malaise trap in forest [-22.167, 166.533], 600 m, 2-5.XII.2001, T. Pape, B. Viklund (MEI135023, NHRS); 1 male, Rivière des Pirogues black light (UV) [approximated as -22.275, 166.687], 7-9.II.1984, M. Pogue, M. Epstein (MEI030167, UMSP); 2 males, 4 females, Rivière Bleue Provincial Park, 25.8 km Rivière Bleue Road, Malaise trap across forest path [-22.117, 166.658], 213 m, various dates: 5-28.XI.1992, D.W. Webb, E.I. & M. Schlinger (MEI030158-9, 030170-2, CSCA); 1 male, Rivière Bleue Provincial Park, Rivière Bleue Road, Malaise trap across forest path [-22.117, 166.658], 290 m, 5-16.XI.1992, D.W. Webb, male, (MEI030160, CSCA); 1 female, 17 km NNE Nouméa, Mt. Koghis, [Koghis stream waterfall] Malaise trap in tropical forest [-22.171, 166.512], 500 m, 21-29.XI.1992, D.W. Webb, (MEI030169, CSCA).