8. Labiobaetis petersorum (Lugo-Ortiz & McCafferty, 1999) Figures 16, 64b

Diagnosis .

Larva. Following combination of characters: A) labrum dorsal arc of setae composed of one plus 6-7 long, simple setae; B) both mandibles with outermost denti cle blade-like; C) labial palp as Fig. 16c, segment II with short thumb-like distomedial protuberance; D) fore femur broad, length 2.6 × maximum width, dorsal margin with a row of>40 curved, spine-like setae; E) spines at posterior margin of tergum IV triangular, pointed, longer than wide; F) paraproct distally not expanded.

Examined material.

Paratypes. 4 nymphs (on slides, PERC 0 012 564, PERC 0 012 565, PERC 0 012 566, PERC 0 012 567), Papua New Guinea, Bulolo R, 2950 ft, E of Wau, 15 Oct 1964, W.L. and J.G. Peters.