no. 1632. SOME NEW MOSQUITOES— DYAR AND A \ I /;. 55 



In the male (he palpi somewhat exceed the proboscis, black-scaled, 

 with bluish luster, the terminal segments clothed with numerous 

 long hairs; head densely yellowish scaled on the occiput, with a 

 silvery luster; the yellowish thoracic stripes are much more diffuse 

 behind the middle than in the female: the stripes become greatly ex- 

 panded on the sides and they also coalesce more or less with the yel- 

 lowish scaling around the antescutellar bare space; the abdomen is 

 black-scaled above, the second segment with pale basal band, the suc- 

 ceeding segments with lateral basal triangular segmental white 

 patches; the under surface white-scaled, with narrow apical black 

 bands on the segments. Length. 5.5 mm. 



Thirty-five specimens from Cordoba, Mexico, bred from larva- in 

 temporary puddles. (F. Knab.) 



Type.— Cat. No. 11964, U.S.N. M. 



AEDES ARGENTESCENS. new species. 



Female. — Proboscis long and slender, black-scaled; palpi black- 

 scaled ; head with the occiput clothed with silvery scales, a large and 

 dark spot on each side; mesonotum clothed with deep brown scales 

 and with two subdorsal lines of silvery scales; these lines are much 

 broadened along their middle third, becoming much attenuated poste- 

 riorly, reaching the scutellum well to the sides of the antescutellar 

 bare space; bare space bordered with silvery scales; scutellum silver- 

 scaled; abdomen deep black, with coppery luster above, and with 

 lateral basal segmental triangular silvery white spots; beneath 

 creamy white, with large triangular black apical segmental lateral 

 spots, which do not unite to form bands; wings with dark long and 

 narrow scales along the veins; legs dark-scaled, with pronounced 

 bronzy luster; the femora pale at base and beneath, tibia? narrowly 

 pale-scaled on the under side; tarsi not ringed; claws toothed on all 

 the feet. Length, 2.5 mm. 



In the male the palpi exceed the proboscis, black-scaled, the ter- 

 minal portion densely clothed with long black hairs; head with the 

 vertex clothed with dull silvery scales; the markings of the nieso- 

 notum similar to those of the female, but the submedian stripes greatly 

 expanded on the middle portion; abdomen black-scaled above, with 

 slight coppery luster, the basal segmental lateral spots becoming 

 united into bands on segments 3, 4, G, and 7, eighth segment mostly 

 whitish scaled. Length, 3.5 mm. 



Six specimens from Cordoba, Mexico, and Almoloya, State of 

 Oaxaca, Mexico, bred from larvae in temporary puddles. (F. Knab.) 



Type— Cat. No. 11965, U.S.N.M. 



The light markings show a silvery metallic luster, with a grayish 

 cast, which varies in intensity in different specimens. 



