Chaetosciara recondita Mohrig & Kauschke, 2017

Mohrig, Werner, Kauschke, Ellen & Broadley, Adam, 2017, Black fungus gnats (Diptera: Sciaridae) of Queensland, Australia. Part I. Genera Chaetosciara Frey, Corynoptera Winnertz, Cratyna Winnertz, Epidapus Haliday, Keilbachia Mohrig, Lobosciara Steffan, Phytosciara Frey and Scatopsciara Edwards, Zootaxa 4303 (4), pp. 451-481 : 453

Chaetosciara recondita Mohrig & Kauschke sp. n.

( Fig. 1 A–D)

Type locality: Australia, Queensland, Mt Lewis , wet forest, 37 km WSW of Port Douglas, 16°35´S, 145°16´E.

Holotype: Male, 13.vi.1997, Malaise trap, leg. J. Seymour (PWMP).

Description. Male. Head. Brown. Eye bridge 4 facets wide. Flagellomeres brown with a net-like surface, dense pale hairs shorter than the width of the basal node, necks whitish; 4th flagellomere with l/w index of 2.0. Palpus rather long, three-segmented; basal segment large, with 6–7 bristles and a patch of long sensillae. Thorax. Brown. Scutum with rather short and fine hairs, some lateral hairs longer; scutellum with short hairs and 4 longer marginal bristles. Postpronotum bare. Wing pale, R1 = 2/3 R, joining C before the M-fork; R 5 in the distal third with ventral macrotrichia; y longer than x and with 1–2 macrotrichia; CuA-stem short; posterior veins without macrotrichia. Haltere short, brownish. Legs yellowish; fore tibiae with a few longer bristles within the ground hair, at the apex with a large and dense patch of pale bristles; spurs of the middle and hind tibiae equal, yellowish and longer than the diameter of the apex. Claws toothless. Abdomen. Hypopygium brownish, the intergonocoxal space with a weak membranous lobe that is short and pyramid-like in shape; gonocoxites on ventral apex with a long, strong bristle, the inner ventral margin with rather long hairs; gonostylus shorter than gonocoxites, externally rounded, internally somewhat flattened; apically with 4 (sometimes 5) short dark spines, subapically with a short whiplash-like hair. Tegmen rounded, with an area of fine teeth and a thin finger-like protuberance subapically. Aedeagus rather long and robust. Body length: 3 mm.

Comments. The species is characteriZed by short and robust flagellomeres with a distinct net-like surface, pale hairs and whitish necks. The hypopygium has a weak membranous intergonocoxal lobe and the gonostylus is ovoid in shape with 4–5 short dark spines at the apex. The tegmen is apically rounded with a thin finger-like structure. A similar species is not known yet.

Distribution. Australia, Queensland.

Genus Corynoptera WINNERTZ, 1867

Type species: Corynoptera perpusilla Winnertz, 1867: 177 ; [preocc., nec Corynoptera perpusilla (Walker, 1848) ; = Corynoptera fatigans (Johannsen, 1912) ].

Literature: Tuomikoski (1960): 42–73; Mohrig & Jaschhof (1999): 44–87; Menzel & Mohrig (2000): 205–260; Hippa et al. (2010): 1–197.

Figures

FIGURE 1. Chaetosciara recondita Mohrig & Kauschke sp. n. A. Hypopygium; B. Ventral base of hypopygium; C. Flagellomeres 4 – 5; D. ApeX of fore tibia.