CHIRONOMID MIDGES OF CALIFORNIA — SUBLETTE 101 



ocular bristles in single row continuing medially to vertex between 

 dorsal extensions of eyes. Palpi ratio 13:28:35:20. Antennal ratio 

 1.59. 



Prothorax with 1 large, 2 small lateral bristles. Pronotum, humeri, 

 small pleural area and scutellum yellowish. Halteres white. Prealar 

 bristles 12; dorsolateral bristles mostly in double row, posteriorly ex- 

 panded, becoming multiserial; 12 scutellar bristles in posterior trans- 

 verse row, about 16 anterior strewn ones; anterolateral bristles about 

 12. 



Fore legs with longest hairs 3.5 times diameter of tarsus, mostly 

 with short hairs. 



Leg proportions: 



Wings with ratio of arculus to m-cu :m-cu to wing tip 0.38. Wing 

 length 2.22 mm.; venarum ratio 0.83. 



Abdomen with basal segment largely brown with only dorsal disc 

 pale white ; segments II to IV with basal half brown, apical half white; 

 segment V with only narrow faint apical band; remainder of segments 

 largely brown. 



Allotype: In USNM: Whitmore Tub, Mono Co., Aug. 3, 1952, 

 McDonald. Wing length 2.37 mm. ; fore leg ratio 0.65 ; venarum ratio 

 0.82; ratio of arculus to m-cu: m-cu to wing tip 0.34. 



Paratypes: In USNM: 3 males, Shafter, Kern Co., June, 1946, B. 

 Brookman; 1 male. Independence, Inyo Co., Aug. 22, 1952, B. In 

 KU: 1 male, Mono Lake, July 31, 1940, D. E. Hardy. In INHS: 

 1 male, Palo Alto, May 1, 1906. In UCLA: 4 males, Saratoga Springs, 

 March 20, 1955, B; 3 males, Saratoga Springs, May 20, 1955; 1 male, 

 Santa Monica Creek, Los Angeles Co., July 22, 1952; 7 males, col- 

 lected with allotype. In UCD: 3 males, Benton Station, Mono Co., 

 July 20, 1950, H. A. Hunt. 



Males: Wing length, range 1.74-2.70; mean 2.33 mm. (17); fore leg 

 ratio, range 0.66-0.73; mean 0.70 (12); antennal ratio, range 1.36- 

 2.00; mean 1.66 (13) ; venarum ratio, range 0.77-0.93; mean 0.83 (17) ; 

 arculus to m-cu:m-cu to wing tip, range 0.36-0.46; mean 0.39 (12); 

 middle leg ratio 0.71, 0.75 (2). 



This species is distinguished from the remainder of the North 

 American species of this group in the key below. 



I take pleasure in naming this species for my wife Mary Smith 

 Sublette, an able zoologist whose patience, understanding, and assist- 

 ance made this work possible. 



680^47—63 2 



