Parapsectrocladius

Donato, Mariano, Mauad, Melina & Fuentes, María Cecilia, 2015, A new species of Parapsectrocladius Cranston (Diptera: Chironomidae: Orthocladiinae) from Patagonia, Argentina, Zootaxa 3911 (4), pp. 547-559 : 548-549

Parapsectrocladius emended diagnosis

The following characters are new with respect to the original description:

Male. Wing length 1.54–2.84 mm. Head: Antenna with 12–13 flagellomeres. AR 0.94–1.66. Thorax: Acrostichals restricted to sector 1/3 from anterior or lacking. Wing: Membrane with fine to moderate punctation, without macrotrichia. R with 9–18, R1 with 0–8 setae. Squama with 9–28 setae. VR between 1.12–1.22. Legs with 3–11 sensilla chaetica in basal 1/10 of tarsomere 1 of midleg.

Female. A.R. 0.39–0.55. Wing vein R with 17–20, R1 with 7–8, and R4+5 with 5–8 setae. VR 1.15–1.23; squama with 16–24 setae. Legs with 6–13 sensilla chaetica in apical quarter of tarsomere 1 of midleg and 2–6 on tarsomere 1 of hindleg.

Larva. Fourth-instar larva medium-sized, 2.98-7.2 mm long. Antenna, AR 1.2–2.32. Mentum comprising paired median teeth and 1st laterals somewhat appressed or not. Ventromental plate extending from mid first lateral teeth or second teeth, narrow and not extending to outermost mental tooth.