Abstract
Culex (Culiciomyia) rajah n. sp. and Toxorhynchites (Toxorhynchites) rajah n. sp. were collected from the pitcher plant Nepenthes rajah at high elevations of Mt. Kinabalu, northern Borneo. Cx. rajah n. sp. is characterized by : adults with a dark stripe on upper parts of the pleura and a distinct pale basal band on terga II-VII; pupa with single 4-VIII setae and broad paddles; and larvae with short setae, 7-C and 8-P, a slender siphon with usually 5 pairs of 4-6 branched 1-S tufts, and long gills. Tx. rajah n. sp. is characterized by : adults with a combination of long rm crossvein of wings, absence of brown fusiform scales on mesokatepisternum of thorax; and absence of well-developed caudal tufts on terga VI-VIII;pupae with setae 11, 12-CT single, 1-II single, 6-I-VII long and single, and broad shape of paddles; and larvae with 2-branched setae 1-III, IV, single 4-VI, single 6-P and 7-M, single 11-V, and a long siphon with 2-branched 1-S.
