Cratyna (Cratyna) livida 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 : 461-462

Cratyna (Cratyna) livida Mohrig & Kauschke sp. n.

( Fig. 7 A–B)

Type locality: Australia, Queensland, Atherton Tablelands, Millaa Millaa Falls , wet tropics.

Holotype: Male, 8.vii.2000, caught by net, leg. W. Mohrig (PWMP).

Description. Male. Head. Yellowish-brown. Eye bridge 3 facets wide. Antennal flagellomeres with rather long necks and long bristles; 4th flagellomere with a l/w index of 2.2, bristles about 2 times longer than the diameter of the basal node, necks somewhat shorter than the basal node, pale but darkened at the tip. Palpus short, 3- segmented; basal segment larger, with 3 bristles and a patch of sensillae. Thorax. Yellowish, with darker spots on pleural sclerites. Scutum with rather fine hairs and some longer lateral bristles; scutellum with short hairs, with 4 longer marginal bristles. Postpronotum with a few short hairs. Wing somewhat brownish, R1 =3/4 R, joining C before the M-fork; R5 with ventral macrotrichia in the apical third; y longer than x, without macrotrichia; M1 and M2 weak, posterior veins without macrotrichia. Haltere short, brownish. Legs yellowish, tarsi darkened; legs rather long; fore tibia with a large patch of dark bristles at the inner apex; spurs of middle and hind tibiae equal and much longer than the diameter of the apex; claws toothless. Abdomen. Brownish. Hypopygium brown; gonocoxite short and as long as gonostylus, with a fine long, strong bristle on the ventral apex, the inner ventral margin with rather sparse hairs; gonostylus large, wider apically, with two close-set pairs of hyaline spines on the inner side. Tegmen somewhat wider than long, rounded, with an inner semicircular sclerotiZed structure and with a short finger-like protuberance apically. Aedeagus thin and short. Body length: 2.2 mm.

Comments. This yellow-coloured species is characteriZed by flagellomeres with long necks and bristles, a 3- segmented palpus and the gonostylus widened apically with two close-set pairs of hyaline spines.

Distribution. Australia, Queensland.

Figures

FIGURE 7. Cratyna (Cratyna) livida Mohrig & Kauschke sp. n. A. Hypopygium; B. Flagellomeres 3 – 5.