CHIRONOMID MIDGES OF CALIFORNIA — SUBLETTE 113 



Allotype: In USNM: Fish Springs, Sal ton Sea, Imperial Co., 

 Oct. 18, 19, 1954, Whitney. 



Wing pattern and coloration as holotype male. Differs by dorso- 

 lateral bristles forming group of 4 bristles just anterior to scutellum 

 and by having 11 prealar and 12 anterolateral bristles. Pronotum 

 produced as in holotype, bearing 5 fine, lateral bristles. 



Wing length 2.29 mm.; fore and hind tarsi missing; venarum 

 ratio 1.07. 



Paratypes: In UCD: 1 female, 12 miles east of Heber, Imperial 

 Co., May 12, 1956, T. R. Haig. In UCLA: 1 male, collected with 

 holotype; 1 female, Lee's Ranch, Chatsworth, Los Angeles Co., 

 July 25, 1950. 



Male: Wing length 2.59 mm.; fore leg missing; antennal ratio 

 2.04; venarum ratio 1.05; hind leg missing. 



Females: Wing length 2.59, 2.70 mm. (2); fore leg ratio 0.69 (1); 

 venarum ratio 1.02, 1.02 (2); hind leg ratio 1.00, 0.80 (2). In female 

 collected 12 miles east of Heber, Imperial Co., dorsolateral bristles 

 in three rows just anterior to scuteUum with about 7 bristles in clump; 

 pronotum produced with 5 lateral bristles; prealar bristles 10; antero- 

 lateral bristles 10. 



In the female from Lee's Ranch, Los Angeles Co., the high leg 

 ratio and the produced pronotum seem to place it in this species; 

 however, the prealar bristles are 9, the anterolateral bristles 4, and 

 the dorsolateral bristles become staggered in 2 rows turning medially 

 just before the scuteUum. 



This species is quite similar to T. neopvnctipennis new species but 

 differs in being smaller and by having a strongly produced pronotum 

 and having a distinctly different male genitaha. It is separated from 

 the other Nearctic species in the key (p. 120). 



Tanypus parastellatus, new species 



Figures 4d,e 



Holotype male: USNM 65517, Laguna Lake, Imperial Co., June 

 9, 11, 1950. 



Head dark; antennal ratio 2.00. 



Pronotum parallel-sided; dark brown, infuscate yellow apicaUy. 

 Mesonotum blackish-brown, overlaid with strong greyish-green 

 pruinescence ; tubercle very small and dark. Scutellum dark yeUow- 

 ish-brown. Postnotum shining blackish-brown. Halteres yeUow. 

 Prealar bristles 10; dorsolateral bristles in single row; anterolateral 

 bristles about 6. 



Legs yellowish; black ring above and below knee and at apex of 

 tibiae and at apex of tarsal joints 1 to 3; 4 and 5 largely dark; base 



