Claustropyga subbrevichaeta Mohrig & Kauschke, 2017, sp. n.
Creators: name: Mohrig, Werner
name: Kauschke, Ellen
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Sciaridae
Claustropyga
Claustropyga subbrevichaeta

description: Claustropyga subbrevichaeta sp. n.
Fig. 9 A‒B; plate IV, fig. VIII
Locus typicus: USA, California, Los Angeles County, Topanga National Forest. Holotype: Male, 19.‒24.xii.1996, leg. W. Mohrig, yellow trap (PWMP). Paratypes: 1 male, same data; 1 male, 25.‒26.xii.1994, California, Big Sur, Redwood National Park, caught by net, leg. W. Mohrig, (PWMP); 1 male, 13.x.‒12.xi.2015, Oregon, Benton Co., 6.4 mi up Woods Crk Rd from jct Hwy 20, across old road, fir/alder/maple, Malaise trap, leg. S. Fitzgerald (MZH).
Description. Male. Head. Eye bridge 3 facets wide; antennae brown; 4th flagellomere with l/w-index of 2.0, haired as long as diameter, neck rather long. Palpus are 2-segmented, first segment with one bristle and a flat sensory area. Thorax is brown, coxae and femora paler. Scutum is haired rather strong and dark; scutellum with two longer bristles; posterior pronotum bare. Wings brownish; R1 = 3/4 R; c = 2/3 w; y = x; y without macrotrichia; posterior wing veins distinct, without macrotrichia. Haltere are rather short, brownish. Coxae, femora and tibiae brownish; tibial organ small with a patch of dark bristles, weakly bordered; spurs of middle and hind tibiae are equally long, hardly longer than the apex of tibia wide; claws are toothless. Abdomen. Ventral base of hypopygium nearly closed; gonocoxites short and strong, haired short and sparsely at the inner ventral margin; gonostylus strong, haired very short at the outside, weakly concaved at the dorsal inner side; with a short, dark apical tooth and 4 hyaline spines at the inner side. Tegmen has tooth-like shoulders, fine teeth and a rather long aedeagus. Body length: 2.5 mm.
Comments. The species is characterized by a closed ventral base of the hypopygium, gonostylus which are haired very short at the outside, having a short apical tooth and 4 hyaline spines at the inner side as well as 2- segmented palpus. The species is similar to Cl. brevichaeta Mohrig & Antonova, 1978 and Cl. sp. 1 Hippa & Vilkamaa, 2016. It differs from Cl. brevichaeta Mohrig & Antonova, 1978 by smaller gonostylus, having 4 spines only and less dense hairs at the ventral base of the hypopygium as well as a broader apex of the tegmen. It differs from Cl. sp. 1 Hippa & Vilkamaa, 2016 mainly by the shape of tegmen, having sharp lateral angles and short curved hairs at the outside of gonostylus. Claustropyga subbrevichaeta sp. n. resembles most Cl. simplicis Hippa, Vilkamaa & Mohrig, 2003. The new species can be distinguished from Cl. simplicis by gonostylus which are more elongated and more strongly narrowed towards the apex as well as by the tegmen which has a broader medial process and sharper apicolateral corners. See also under Claustropyga postbrevichaeta sp. n.
Distribution. USA (California, Oregon).
description: Published as part of 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, pp. 301-326 in Zootaxa 4258 (4) on page 320, DOI: 10.11646/zootaxa.4258.4.1, http://zenodo.org/record/570081