200 AGRICULTURAL EXPERIMENT STATION. 



Description of iJic Adult. 



This is a medium sized or rather large mosquito of a beauti- 

 ful brown color. The body, exclusive of the beak, is about 

 5.5-6 mm.,^.22-.24 of an inch in length; the beak less than half 

 i'ts length, or averaging 2.5 mm. The head is dark brown at base 

 the scales of the outer edges gradually mixing with the yellow- 

 ish ones toward the central part, which become bright creamy 

 yellow between the anterior part of the eyes ; there is also a 

 narrow yellow border on the posterior margin of the eyes. The 

 proboscis is black, with a well defined white central band. The 

 palpi in the female (fig. 59, 2) are blackish brown and thickly 

 scaled ; the apical joint elliptical, pointed at the apex, usually with 

 one or two bristles, though it may not have any. In the male 

 the palpi resemble those of cantator in shape, but are somewhat 

 shorter and stouter, extending beyond the tip -of the proboscis : 

 the two apical joints are narrowly white banded at their bases 

 and there is a broader yellowish band in the center of the basal 

 joint; the fan-like tufts pale yellowish brown in color. The 

 female antenna is dark brown, while that of the male is brown 

 with pale brown plumes. 



The clothing- on the dorsum of the thorax is spiny, deep brown 

 in color, with numerous golden yellow scales often forming two 

 diffuse longitudinal rows; the lateral margins blackish brown, 

 deeply in contrast with the silvery white pleura. The femora and 

 tibic-E are ochraceous, with many black scales sprinkled over the 

 surface ; the knee spots are yellowish without scales and the apices 

 of the tibiae are black. The tarsi in the hind legs are black, 

 broadl}^ white banded at the bases of the three intermediate 

 joints; the fifth joint wholly white, while the first is narrowly 

 white banded at the base and with a distinct ochraceous median 

 band. The fore and mid tarsi are similar, except that the bands 

 are dirtv white in color, proportionately narrower, disappearing 

 altogether on the fourth joint; the ochraceous band on the first 

 tarsal joint less distinct and the fifth joint with some dark colored 

 scales. In the male the claws of the anterior and mid tarsal 

 joints (figs. 59, 3 and 4) are unequal, the longer with a median 

 and basal tooth, the shorter with a median tooth slightly nearer 

 the base. The posterior claws (fig. 59, 9) are small and ecjual, 

 with a single tooth on each. Those of the female are alike on 

 all feet, being the same as the posterior claws of the male. 



The abdomen is dark brown, with rather broad yellowish 

 bands at the base of the segments, becoming slightly wider later- 

 ally; a longitudinal stripe the entire length of the abdomen 



