NEW MOSQUITOES FROM PERU 59 



rather long and slender, blackish, with white rings at bases of joints ; tori 

 small, yellowish. Occiput blackish, clothed with narrow curved yellowish 

 scales, broader and denser white ones along ocular margins, many erect, 

 very slender, forked brown scales dorsally ; cheeks white scaled. 



Mesonotum dark brown, two bare, narrow, longitudinal lines, the ante- 

 scutellar space bare, a large bare area laterally on posterior half of disk ; 

 scales rather sparse but coarse, narrow curved, yellow-brown, larger pale 

 scales along margins and on posterior half about the three bare zones. 

 Scutellum with pale scales, like those preceding, each lobe with a large 

 group of coarse black bristles. Pleurae brown, with lanceolate white 

 scales. 



Abdomen rather slender, depressed dorsally ; dorsal vestiture dull 

 black, the segments with very broad, basal yellov/ish white bands, the 

 band on the second segment medianly produced to posterior margin, the 

 white on the sixth and seventh segments occupying more than the basal 

 halves, the eighth entirely white scaled ; no differentiated lateral spots ; 

 venter uniformly dirty white scaled ; many long, pale yellowish bristles at 

 posterior margins of segments and ventrally, in appearance approaching 

 the lateral ciliation present in many male mosquitoes. 



Legs browTiish black, the tibiae and tarsi v^dth pale luster beneath ; 

 femora pale beneath to near apices ; knees pale ; tibiae narrowly pale at 

 bases, the tips of all three peurs broadly white ; tarsi unhanded. Claw 

 formula, 0.0-0.0-0.0. 



Wings hyaline, moderately broad ; second marginal cell rather narrow, 

 nearly three times as long as its petiole, second posterior cell slightly 

 longer than its petiole ; scales dark brown, paler, yellowish, at tip of wing 

 in a spot involving tip of first vein and apical halves of forks of second 

 vein ; outstanding scales long and linear, the others not differentiated ; 

 fringe narrow, unicolorous. Halteres dark, scaled throughout. 



Length : Body about 5 mm., wing 6 mm. 



Male : Palpi slender, necirly uniform, upcurved, exceeding the pro- 

 boscis by about the length of the last joint ; vestiture brovmish, without 

 pale rings, rather sparse, short, stiff black hairs at end of long joint and 

 along last two joints. Antennas rather long ; last two joints long, the 

 others shorter, slender, pale, with narrow black rings at insertions of hair- 

 whorls ; hairs very long, moderately abundant, brown, shining ; tori large, 

 luteous. Coloration similar to the female. Abdomen long, slender neair 

 base, depressed beyond ; white dorscil bands broader than in the female, 



