THE CANADIAN ENTOMOLOGIST, 



A NEW NORTH AMERICAN TAENIORHYNCHUS. 



BY C. S. LUDLOW, M SC. 

 Laboratory of the ofiSce of the Surgeon-General, U. S. A,, Washington, D. C. 



From the heart of the Sierras, in Cahfornia, comes a new mosquito of 

 the genus Taeniorhynchus, which is here described : 



Taeiiiorhy7ichus Sierrensis, n. sp. — $ . Head brown, a median Hne 

 of white curved scales extending up between the eyes, immediately followed 

 laterally by a patch of flat brown scales, a narrow white stripe laterad, 

 followed by a brown stripe, narrow white line around the eyes, white forked 

 and curved scales on the occiput; the general effect is of two brown sub- 

 median spots, and the curved scales are confined to this comparatively 

 narrow median line; antennae brown, and while not really banded, giving 

 the effect of white bands, verticels brown, pubescence while, basal joint 

 white scaled; palpi brown with white tips, and a narrow light band about 

 midway; proboscis dark brown; clypeus brown; eyes brown. 



Thorax brown, with fine tomentum, resembling the "frost" on some 

 Anophelina, partly denuded, but sparsely covered with brown and white 

 curved and spindle-shaped scales, the white scales being apparently mostly 

 on the outer parts of the mesonotum, /. e., cephalad, on the sides, and a 

 heavy median bunch just in front of the scutellum; prothoracic lobes 

 brown, with white curved scales; scutellum brown, such scales as remain 

 are white curved and spatulate; pleura brown, with heavy patches of broad 

 white scales; metanotum brown, nude. 



Abdomen brown, with basal white lateral spots and basal white bands, 

 thickened on the median line, which do not always reach all the way across, 

 and on the penultimate segment is merely a median white spot; some 

 segtnents also narrowly apically banded, apical hairs brown; ventrally 

 mostly light scaled, and on the distal segments arranged so as to form 

 both basal and apical bands. 



Legs: coxee and trochanters brown, with light scales; femora dark, 

 slightly speckled with white scales, the dorsal sides the darker, but on the 

 hind legs light at the base; small white knee spot on all the legs, a little 

 more pronounced on the hind legs; tibise dark, sometimes a little speckled; 

 metatarsi on all the legs with basal and apical light spots, which are very 

 faint, sometimes missing on the fore legs and develop into well-marked 

 basal and apical white bands on the hind legs; the fore legs are of lighter 

 brown and the banding ofteu very faint or missing; ist and 2nd tarsal 

 joints on the hind legs with apical while bands, on mid and fore legs only 



June, 1905. 



