9. Labiobaetis sumigarensis (Mueller-Liebenau, 1982) Figures 15, 53b

Diagnosis.

Larva. Following combination of characters: A) dorsal surface of labrum with submarginal arc of ca. 26 clavate setae; B) labial palp segment II with a hook-like distomedial protuberance, segment III slightly pentagonal, apically slightly pointed; C) left mandible without setae at apex of mola; D) fore femur rather broad, length 3.4 × maximum width, dorsal margin with ca. 15 curved, spine-like setae; E) tarsal claw with ca. ten denticles; F) paraproct slightly expanded, with 35-39 stout marginal spines, some with split tips.

Examined material.

Holotype. 1 larva (on slide), Philippines, Mountain Prov., Sumigar stream, Sumigar, Banaue, 3.X1967, M.L. Pescador leg.