Calophytus matilei, 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/3C325DB8-82AC-4230-80C4-60D0583837D3
taxon LSID	lsid:zoobank.org:act:3C325DB8-82AC-4230-80C4-60D0583837D3
treatment provided by	ZooKeys by Pensoft
scientific name	Calophytus matilei
status	sp. nov.

Treatment

Calophytus matilei sp. nov. Figs 5D View Figure 5 , 6C View Figure 6 , 7D View Figure 7 , 13 View Figure 13 , 14 View Figure 14 , 22 View Figure 22

Diagnosis.

Black postocular setae as single row dorsally; flagellum shorter than scape; scutum dark with yellow along notopleural callus; legs yellow, mid- and hind coxae extensively yellow; wing with extensive infuscation, fenestrate in apical half; abdomen dark, male with silver velutum pubescence.

Description.

Length 7.8-10.6 mm. Head. Glossy black. Frons smooth, raised around base of antenna, sometimes with patch of silver pubescence lateral to and above base of antennae. 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 dorsally, black pubescent ventrally; posterior buccal cavity brown, sparsely pubescent. 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, except prothorax, postpronotal lobe, and notopleuron yellow; prosternum, ventral proepimeron, posterodorsal katepisternum, posterior scutum, scutellum, subscutellum, metanepisternum, metepimeron, meron and metakatepisternum with silver pubescence; pronotum, anatergite, and dorsal proepimeron gold-yellow pubescent; 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 basitarsomere with admix of white and gold setae ventrally and medially. Coxae with yellow setae anteriorly, hind coxa with two black setae laterally. 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, slightly variable and irregular amongst individuals. Costal cell with slight yellow infuscation; darker brown 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; 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 broad, truncate 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. 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.

Etymology.

Calophytus matilei sp. nov. is named in honour of the late Dr Loïc Matile, former curator of Diptera , Muséum national d’Histoire naturelle, Paris, France, who was extremely helpful to this project by providing loans of New Caledonian Therevidae .

Comments.

Calophytus matilei sp. nov. is very similar to C. schlingeri sp. nov. but can differentiated 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. Calophytus matilei sp. nov. is known from forest habitats in the northern parts of the South Province. GenBank sequences for this species (see Winterton et al. 2016: table S1): KT290079 (16S rDNA), KM885000 (28S rDNA), KM879118 (EF1a).

Specimens examined.

Holotype male, New Caledonia: Province Sud: Sarraméa, Malaise trap in forest [-21.641, 165.846], 780 m, 2-5.XII.2001, T. Pape, B. Viklund (MEI135020, MNHN).

Paratypes. New Caledonia: Province Sud: 6 males, 1 female, Sarraméa, Malaise trap in forest [-21.641, 165.846], 780 m, 2-5.XII.2001, T. Pape, B. Viklund (MEI135015-19, 135054-5, NHRS, CSCA); 5 females, Reserve Col d’Amieu, 7.5 km NW Sarraméa, Malaise trap [-21.585, 165.819], 300 m, 4-9.XI.2000, M.E. Irwin, E.I. Schlinger, D.W. Webb, (MEI123351-5, NHRS, CSCA); 4 females, Pointe du Cagou, base de Naemeni, humid forest on peridotite [-21.681, 166.335], 30 m, 5-8.XI.1984, Tillier, Bouchet (MEI030190-2, MNHN).