CHIRONOMID MIDGES OF CALIFORNIA — SUBLETTE 111 



Wing coloration very near T. punctipennis Meigen; anal margin 

 with only two large spots, basal one extending across anal fold. Wing 

 length 3.03 mm.; venarum ratio 1.13. 



Allotype: In USNM: Collected with holotype male. 



Wing length 3.00 mm.; fore leg ratio 0.78; venarmn ratio 1.09. 

 Wing spots larger and more distinct; those along anal margin coalesced 

 with those above, along anal vein; costal cell somewhat darkened 

 along entire length. 



Paratypes from California: In USNM: 1 male, Tulare Co., Aug. 5, 

 1947, W; 4 males, 1 female, Visalia, Aug. 7, 1947, W; 1 male, 1 female, 

 Shafter, Kern Co., June, 1946, B. Brookman. In UCLA: 1 female, 

 Whitmore Tub, Mono Co., Aug. 3, 1952, McDonald. In CBPH: 

 1 male, 5.3 miles south of Manteca, San Joaquin Co., May 27, 1957, G. 



Males: Wing length, range 2.29-2.96; mean 2.60 mm. (7); fore leg 

 ratio, range 0.76-0.81 ; mean 0.80 (5); antennal ratio, range 2.05-2.43; 

 mean 2.28 (5); venarum ratio, range 1.09-1.20; mean 1.11 (7); hind 

 leg ratio, range 0.81-0.93; mean 0.85 (6). 



Females: Wing length 2.32, 2.44 mm. (2); fore leg ratio 0.78, 0.82 

 (2); venarum ratio 1.08-1.19 (2); hind leg ratio 0.83, 0.84 (2). 



Paratypes from Michigan: In INHS: 3 males, 4 females. Grand 

 Junction, Little Bear Lake, Aug. 15, 1914; 1 female, INHS no. 18811. 



Head and thorax reddish-brown. Meso thoracic tubercle not too 

 prominent, slightly lighter at apex, not strongly contrasting. Scutel- 

 lum infuscate yellow. Postnotum dark reddish-brown, sternopleuron 

 concolorus. Haltere knob black, yellow at base of stalk. 



Fore legs with beard 5 times tarsal diameter; legs as holotype. Fore 

 leg ratio of males 0.86, 0.93; middle leg 0.90, 0.91; hind tarsi missing. 

 Female: fore leg ratio 0.91; middle and hind tarsi missing. 



Abdomen dark brown, pruinose; incisures faintly paler. 



Ninth tergite with 16 bristles; carina of dististyle not quite as 

 broad as in California specimens. 



Paratype from Louisiana: In JES: 1 male, Natchitoches, U.S. 

 Fish Hatchery, March 21, 1960, reared, JES. 



Antennal ratio 2.44. Halteres dark; prealar bristles 10; scuteUum 

 with 12 bristles in posterior single row. 



Tarsal beard 4 times diameter of fore tarsus; femora dark, each 

 with preapical yellow annulus. 



Leg proportions: 



Carina of dististyle of male genitalia as well developed as California 

 specimens; only 7 bristles on ninth tergite. 



