Pseudolycoriella chlorothoracica, Mohrig & Kauschke, 2019

Mohrig, Werner & Kauschke, Ellen, 2019, New Black Fungus Gnats (Diptera, Sciaridae) of North America. Part V. Genera Pseudolycoriella Menzel & Mohrig and Phytosciara Frey, Zootaxa 4543 (2), pp. 261-283 : 264

Pseudolycoriella chlorothoracica sp. n.

( Fig. 3 E – G )

Locus typicus: USA, Arizona, Pima County, Tucson Mountains, 16 km W Tucson, Sonora desert, 32.24°N, 111.13°W .

Holotype: Male, 28.ix.–7.x.1995, leg. S. J. Prchal, Malaise trap ( PWMP).

Description. Male. Head: Round; eye bridge 3 facets wide. Antenna brownish, scape and pedicel somewhat paler; 4 th flagellomere with a l/w index of 1.8–2.0, hairs somewhat shorter than the diameter, inserted in rather large pits. Palpi 3-segmented, first segment with 3–4 bristles and a flat patch of sensillae. Mouth parts very short. Thorax: Brown; scutum with dark hairs, some lateral and prescutellar bristles longer. Scutellum with 2 more robust bristles. Postpronotum bare. Wing brownish; R 1 = 1/2 R; c somewhat longer than 1/2 w; y = x, both bare; Mfork shorter than M-stem, rather wide; CuA-stem = x; posterior veins distinct, without macrotrichia. Haltere short, brown. Legs yellowish; tibial organ with a small patch of stronger bristles, distinctly bordered. Claws finely toothed. Abdomen: Inner margin of gonocoxites with a few longer bristles between short hairs. Gonostylus wide and oval in shape, inner side concave, with dense apical hairs, 3 long spines, and 2–3 whiplash hairs that are as long as the spines. Tegmen apically rounded. Aedeagus rather long, with a large furca. Body length: 2.2 mm.

Comments. The species resembles Psl. basisetosa sp. n. but differs from it by having a broader gonostylus with three much longer spines, a few longer bristles on the entire ventral inner margin of the gonocoxites and a distinctly bordered tibial organ apically on the fore tibia.

Distribution. USA (Arizona).

Figures

FIGURE 3. A–D. Pseudolycoriella flavipila sp. n. Holotype. A. Hypopygium. B. Antennal flagellomeres 3–4. C. Palpus. D. Apex of fore tibia. E–G. Pseudolycoriella chlorothoracica sp. n. Holotype. E. Gonostylus, ventral view (3 rd spine hidden). F. Scape, pedicel and antennal flagellomeres 1–4. G. Apex of fore tibia.