Compsoneuriella sp. 1

Compsoneuria thienemanni Boonsoong & Braasch, 2013, Zookeys 272, p.75 (nymph)

? Compsoneuria thienemanni Braasch & Soldán, 1986, Reichenbachia 24(3), p. 41 (adult, nymph)

Material examined. 2 nymphs, Thailand, Chiangmai Province, near Hot, Mae Nam Chaem, 200 m., 18° 12’ 07.54’’ N, 98° 36’ 32.85’’ E, IV. 2003, D. Braasch leg. [MZL]

Discussion. The Thai material differs from C. thienemanni by the following characters: maxilla with 8–9 comb-shape setae on the crown, instead of 12 in C. thienemanni; glossae (Fig. 68) of the labium more conical, dorsal face with two spines instead of one; bristles on the upper face of femora clearly pointed (Fig. 69), posterior margin of the abdominal tergites without rows of microdenticles (Fig. 70), apex of gill VII clearly pointed instead of rounded. As in C. thienemanni, the tarsal claw bears no subapical teeth. The Vietnamese material present similar characters, but in the absence of material in hand, it cannot be ascertained that both populations belong to the same species. Anyway, this Thai species needs to be redescribed and named on the basis of a much more abundant material than covered here (Boonsoong & Sartori, in prep.).