14 Journal New York Entomological Society. [Vol. xvi. 



Chironomus labeculosus, new species. 



Female. — Antennae, head and entire body chocolate brown. Legs clothed with 

 light yellowish hairs ; pale brown, the proximal parts of the femora somewhat more 

 darkly shaded. Wings (fig. 9, a) hyaline, with no distinct banding, a cinereous 

 spot in the middle of cell R 5 , a larger one at the cross vein, one on caudal margin in 

 center of cell C 1 , an indistinct mark at the base of this cell, another on the anal vein, 

 tip of wing with faint mark. Length 1.5 mm. Wing length 1. 75 mm. 



Taken at Hot Springs, Arizona, June 27, by Mr. H. S. Barber. 

 7ype. — Female, Cat. No. 11 144, U. S. N. M. 



Chironomus nasvus, new species. 



Male. — Head wanting. Mesothorax brownish black, the vittse dark gray, 

 scutellum chestnut brown ; metanotum chocolate brown ; pleurae dark brown. Wings 

 (fig. 9, b) clear, with four cinereous dots, one in the middle of cell R 6 , one at the 

 cross vein, a spot in cell C 2 and a very indefinite spot in cell C 1 close against vein C 2 , 

 there is a faint band on the tip of the wing in cells R 5 and M 3 and the costal margin 

 as well as the upper third of cell R 5 has a very slightly smoky appearance. First five 

 abdominal segments chestnut, with scattered black scales, segments two to five with 

 a median black stripe, the last segments dark gray with brownish reflections and scat- 

 tered black scales, the first six segments with an apical white band in width one fourth 

 (or slightly less) the length of the segment; claspers brown and black. Legs (fig. 

 10), coxae dark brown ; femora dark brown, lighter on proximal half of the fore 

 femora, with a narrow white band at base of apical third in the middle pair and fifth 

 in the other two pairs, and, in the hind pair, a very small, yellowish white band at 

 base ; white knee spots ; tibiae dark brown with two white bands occupying about the 

 second and the fourth fifths from the base ; first joint of front tarsi creamy on basal 

 fifth shading through brown to black at distal end, second joint creamy at extreme 

 base shading also to black, third and fourth joints brown shading to black, fifth 

 black ; tarsi of middle pair gone ; first joint of hind tarsi black at extreme base fol- 

 lowed by a narrow creamy band and then shading through brown to black at tip, 

 other joints shading from brown on the second to black on the last. Length 6.5 mm. 

 Wing length 4.5 mm. 



Taken at Beulah, N. M., in August, at an altitude of 8,000 feet, 

 by T. D. A. Cockerell. 



Type. —Male, Cat. No. n 143, U. S. N. M. 



