Oecetis walpolica Neboiss, 1982

Wells, Alice, 2006, A review of Australian long-horned caddisflies in the Oecetis pechana-group (Trichoptera: Leptoceridae), with descriptions of thirteen new species, Memoirs of Museum Victoria 63 (2), pp. 107-128 : 110

Oecetis walpolica Neboiss

Figures 7, 8, 57

Oecetis walpolica Neboiss, 1982: 321 , figs 123–125. — Neboiss, 1986: 267.

Holotype. Male, Frankland R., Circular pool, 6 km NE of Walpole , WA ( NMV: T-6596).

Material examined. Forty-five samples, most from WA, several from NT.

Diagnosis. Male. Closely resembling O. pechana , especially in form of the wings, shape of inferior appendages in ventral view, and presence of the basi-dorsal pouch on the inferior appendages. Distinguished from that species by the male genitalia with inferior appendages attenuate apically in lateral view, and phallus about half length of that of O. pechana and strongly arched dorsally. Also resembling O. kateae sp. nov. in general form, but the phallus of kateae is less strongly curved and arches ventrally, and the inferior appendages in ventral view are more widely curved and attenuate apically. Male forewing length 5.7– 10 mm.

Distribution. Distributed from south-western WA inland and northwards to the far north of NT.

Remarks. Oecetis walpolica is easily mistaken for O. pechana and, similarly, is found in waterholes of the arid inland.