Tricimba dursuni Kubik

Kubik, Stepan, Bartak, Miroslav & Civelek, Hasan, 2016, Three new species of Tricimba Lioy from the West Palaearctic region (Diptera, Chloropidae), ZooKeys 558, pp. 95-107 : 102-104

Taxon classification Animalia Diptera Chloropidae

Tricimba dursuni Kubik sp. n. Figs 6, 7, 10

Holotype male.

Turkey, Akyaka, pasture, 4m, 37°03'08.9"N, 28°20'17.4"E, 16.-22.ix.2012 leg. Barták and Kubík. Holotype is in good condition.

Paratypes.

19 males and 2 females, same data as the holotype.

Distribution.

Turkey.

Date of occurrence.

September.

Diagnosis.

Tricimba dursuni Kubík sp. n. belongs to the "extralimital taxon" (Ismay 1991: 303) together with Tricimba setulosa and Tricimba parasetulosa (phylogenetically first shifted here close to setulosa ) in the Palaearctic Region. The main characters distinguishing these three species are as follows: frons brownish yellow on anterior half in Tricimba dursuni , but darker, yellowish brown on anterior 1/3 in Tricimba setulosa and 1/4 in Tricimba parasetulosa . Tricimba dursuni has pale setulae on scutum, both Tricimba setulosa and Tricimba parasetulosa have dark setulae. Genitalia strikingly differ in all these three species: Tricimba dursuni has surstylus with three long spurs and numerous black long setae on lower side (Figs 6-7), Tricimba setulosa and Tricimba parasetulosa have differently shaped surstylus (Figs 8-9).

Description.

Male. Head longer than wide, as long as deep. Frons longer than wide, in front slightly concave, dark brown on posterior half, yellowish brown on anterior half, lateral margins parallel, anterior margin slightly produced before anterior margin of eye. All setae dark and setulae pale. Frons with sparse setulae. Ocellar tubercle scarcely raised above level of remainder of frons. Ocellar triangle well developed, occupying 2/3 width of frons posteriorly, extending almost ½ distance between anterior ocellus and anterior margin of frons, dusted with light gray microtrichosity. Ocellar setae small and convergent, postocellar seta as long as ocellar, convergent. Outer vertical setae slightly longer than inner vertical setae, 6-7 thin and small orbital setae, posterior four slightly longer than anterior. Pedicel yellow, first flagellomere yellow, darkened on dorsal margin and base of arista. Arista thin, brown, with pubescence subequal to its basal diameter. Face yellow, vibrissal angle not much projecting before margin of eye. Gena as broad as t3, yellow and dusted, lower margin with one row of pale setulae. Postgena ventrally dark, dusted, broader than gena. Occiput dark brown and dusted. Proboscis brown. Palpus yellow, narrow, with pale yellow setulae.

Scutum longer than wide, black, dusted with grey microtrichosity, with deeply impressed grooves and punctures. All setulae on scutum pale. Notopleural setae 1+2. Katepisternum, anepisternum and anepimeron dark brown and dusted. Scutellum longer than broad, flat, triangular, brown and dusted. Three pairs of black scutellar setae. Apical scutellar setae twice longer than lateral, black and convergent. Subscutellum developed, black, dusted dorsally, shining ventrally.

Legs yellow, t1, t2, t3, f2 and f3 with brown band in middle. Wings hyaline with dark veins, second costal section longer than third. Halter white.

Abdomen dark brown. Epandrium as in Figs 6-7.

Length: 1.5-2 mm.

Female. Similar to male.

Etymology.

Named in honour of Oktay Dursun, our colleague and dipterologist from Mugla University, Turkey.

Other examined material.

Tricimba kaplanae Dely-Draskovits, 1983: Corsica, 10 km W of Corte, 700m, Calacuccia env., 9.v.1993, 2 ♂, B. Mocek leg. This species has only been known from Israel. First record from the Corsica Isl.

Tricimba hungarica Dely-Draskovits, 1983: Turkey, Mugla, University campus, PT [= yellow and white pan water traps], 700m, 37°09'42"N, 28°22'21"E, 21.-24.ix.2012, 2♂, Barták and Kubík leg. This species has only been known from the Czech Republic, Hungary and Ukraine. First record from Turkey.