Camptochaeta grimaldii Mohrig & Rulik

Mohrig, Werner & Kauschke, Ellen, 2017, New Black Fungus Gnats (Diptera, Sciaridae) of North America. Part III. Genera Camptochaeta Hippa & Vilkamaa, Claustropyga Hippa, Vilkamaa & Mohrig and Dichopygina Vilkamaa, Hippa & Komarova, Zootaxa 4258 (4), pp. 301-326 : 307

Camptochaeta grimaldii Mohrig & Rulik sp. n. *

Fig. 3 A‒C; plate I, fig. II

Locus typicus: USA, New York City, Bronx, Van Cortland Park, Northeast Forest , caught by net. Holotype: Male, 29.vi.2000, leg. B. Rulik ( PWMP) . Paratypes: 2 males, same data ; 3 males, 25.vi.2000, same location ; 1 male, 1 female, 24.vi.2000, New York City, Staten Island, Rock Island Park ; 1 male, 1.vii.2000, New York City, Bronx, Pelham Bay Park, Hunter Island ; 1 female, 20.vi.2000, New York City, Brooklyn, Prospect Park, all leg. B. Rulik, caught by net ( PWMP, 1 male in MZH, 1 male in PKHH, 1 male in SDEI) .

Description (by W. Mohrig and B. Rulik). Male. Head. Eye bridge 4 facets wide; flagellomeres dark brown, scape and pedicel yellow; 4th flagellomere with l/w-index of 2.2, haired as long as diameter, hairs curved; neck moderately long. Palpus 3-segmented, first segment with one or two bristles, sensory area not deepened. Thorax. The whole body is yellowish brown. Scutum is haired rather long, brownish; scutellum with four long bristles; posterior pronotum bare. Wings brownish; R1 = 2/3 R; c = 2/3 w; y longer x; y without macrotrichia; posterior wing veins distinct, without macrotrichia. Haltere are short, yellowish-brown. Coxae, femora and tibiae are yellowish brown; tibial organ with a patch of dark bristles, not distinctly bordered; spurs of middle and hind tibiae equally long, longer than the tibial apex wide; claws are toothless. Abdomen. Hypopygium has neither an intergonocoxal lobe nor a bristle patch; gonocoxites are rather short, inner ventral margin is haired rather short and sparsely; gonostylus short and bulbous, at the inner side apicoventrally strongly concave, in the middle with a hand-like protuberance in front of a short and broad tooth. Tegmen is lateral weakly winged, with fine teeth and a thin aedeagus. Body length: 2 mm.

Comments. This small species differs from all other species of Camptochaeta by a tooth, inserting near the middle of the inner side of gonostylus, overlapped by a hand-like spine arrangement. The base of the tooth is pale like in all other species.

Distribution. USA (New York).

*) The species was named in honor of Dr. David Grimaldi, Museum of Natural History, New York City, USA, who supported our work on Sciaridae with important material from the USA and the Dominican Republic.

Figures

FIGURE 3. Camptochaeta grimaldii sp. n. Male. Holotype. A. Part of hypopygium. B. Gonostylus. C. Apex of gonostylus.