32. Labiobaetis xeniolus (Lugo-Ortiz & McCafferty, 1999) Figure 65b

Diagnosis.

Larva. Following combination of characters: A) labrum dorsal submarginal arc of setae composed of one plus 7-9 long, simple setae; B) maxillary palp shorter than length of galea-lacinia, segment II without excavation at inner distolateral margin; C) labial palp segment II with elongated thumb-like distomedial protuberance, segment III about semicircular; D) femur rather broad, length ca. 2 –3× maximum width, dorsal margin with>40 curved, spine-like setae; E) fore claw with a row of 8-10 denticles; F) Gills with strongly developed, dense, pigmented tracheation; G) spines at posterior margin of tergum IV irregular, mostly triangular, apically rounded, wider than long; H) paraproct with marginal spines poorly defined.

Examined material.

Paratypes. 2 nymphs (on slides, PERC 0.012.578, PERC 0.012.579), Papua New Guinea, Morobe Prov., Poverty Cr., Mt. Missim, 1600 m, 18.09. Sept 1983, J.T. and D.A. Polhemus leg.