Agnetina brevipennis (Navás, 1912)

Judson, Sarah W. & Nelson, C. Riley, 2012, 3541, Zootaxa 3541, pp. 1-118 : 36

Agnetina brevipennis (Navás, 1912)

SYNONYMY

Paragnetina brevipennis Navás, 1912

Acroneuria mongolica Klapálek, 1921

Marthamea producta Klapálek, 1921

Neophasganophora brevipennis Claassen, 1940

Phasganophora brevipennis Zhiltzova, 1975

Agnetina brevipennis Zwick, 1984

TYPE LOCALITY: Siberia : Chabarovskiy district, River Kur .

DIAGNOSIS: The head of adults is golden-brown in the interocellar region and has dark brown markings along the anterior margins of the head ( Fig. 202). The pronotum is darkwith pale rugosites medially ( Fig. 202). The male of A. brevipennis is brachypterous ( Fig. 202), whereas the female is macropterous. Both sexes of other Agnetina species are macropterous ( Fig. 207, 212). The male hemitergites are simple, gradually tapering to the apex and with only gentle curves in the dorsal and lateral aspects ( Fig. 203). The female subgenital plate is subtriangular and may be variably pointed or truncate ( Fig. 204). The nymph of this species most closely resembles A. extrema (Navás, 1912) ( Fig. 215), both species having an unpigmented region on the clypeus and dark pigmentation on the labrum. Conversely, A. cocandica has an isolated M mark on the clypeus and a pale labrum with only a thin dark line along the anterior margin ( Fig. 210). In A. brevipennis , the light area on the clypeus gradually widens from its origin above the ocelli to form a rough-edged triangle ( Fig. 205), whereas in A. extrema the light region is invaded by two dark arms.

DISTRIBUTION—Global: East Palearctic— Regional: AOB, IDB, POB*— Aimag: AR, BO, BR*, BU, DO*, GA*, KhD, KhE*, KhG^, OV, SE, TO*, UB*, ZA^.

DIAGNOSIS: According to Sivec et al. (2005), the dissected esophagus has major proventricular bands that are of uniform width in both A. brevipennis and A. extrema , unlike A. cocandica which are very narrow in the middle. This character was confirmed in a random sample of Mongolian nymphs. However, for Mongolian Agnetina species , external characters such as head pigmentation are typically sufficient for identification.