Cratyna (Cratyna) longipeda 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 : 462

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

( Fig. 8 A–C)

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

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

Paratype: 1 male, 8.viii.1997, same locality ( PWMP).

Description. Male. Head. Yellowish-brown. Eye bridge 4 facets wide. Antennal flagellomeres with long dense hair, with rather long necks; 4th flagellomere with a l/w index of 2.0, bristles longer than the diameter of the basal node, neck ½ the length of the basal node, pale but darkened at the tip. Palpus short, 2-segmented; basal segment with 3 bristles and a patch of sensillae. Thorax. Yellowish brown. Scutum with rather fine hairs and with some longer lateral bristles; scutellum with short hairs, with 4 longer marginal bristles. Postpronotum bare. 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; posterior veins weak and without macrotrichia. Haltere short, brownish. Legs yellowish, tarsi darkened; legs rather long and thin; fore tibia with a large patch of brownish bristles at the inner apex; spurs of middle and hind tibia equal and much longer than the diameter of the tibia apex; claws without teeth. Abdomen. Brownish. Hypopygium brownish; gonocoxite short and somewhat longer than gonostylus, with a long, fine bristle on the ventral apex, the inner ventral margin with rather sparse hair; gonostylus large and globular, with two close-set pairs of hyaline spines on the inner side. Tegmen somewhat broader than long, rounded, with an inner semicircular sclerotiZed structure and apically with a short finger-like protuberance. Aedeagus short. Body length: 3.2 mm.

Comments. The species is characteriZed by a 2-segmented palpus and a large globular gonostylus with two close-set pairs of hyaline spines. It is similar to Cr. interflagria Mohrig from Papua New Guinea (Mohrig 1999), but differs since the inner side of the gonostylus is not concave and the protuberance of the tegmen is short and weakly sclerotiZed.

Distribution. Australia, Queensland.

Figures

FIGURE 8. Cratyna (Cratyna) longipeda Mohrig & Kauschke sp. n. A. Hypopygium; B. Palpus; C. Flagellomeres 4 – 5.