CHIRONOMID MIDGES — SUBLETTE 207 



Material examined: In USNM: 1 male, 1 female, Valley Home, 

 Sept. 3, 1947, under bridge, W. 



Polypedilum (Polypedilum) Uietunt (Meigen) 



Chironomus laetus Meigen, Systematische Beschreibung der Europaischen 

 zweifli'igeligen Insekten, vol. 1, p. 38, 1818. 



Male: Wing length 2.04 mm.; fore tarsi missing; antennal ratio 1.45. 

 Material examined: In USNM: 1 male, Kaweah River, Tulare Co., 

 July 13, 1947, W. 



Previous California records: Lake Tahoc, Townes, 1945, p. 50. 



Polypedilum (Polypedilum) ar lifer (Curran) 



Chironomus artifer Curran, Bull. Amer. Mus. Nat. Hist., vol. Gl, p. 32, 1930. 



Males: Wing length 2.74, 3.66 mm. (2); leg ratio 1.55 (1); antennal 

 ratio 1.06 (1). 



Material examined: In USNM: 1 male, Willow Creek, Humboldt 

 Co., Aug. 12, 1948, W; 1 male, Hely Creek, Humboldt Co., Aug. 11, 

 1948, W. 



Polypedilum (Polypedilum) pedatum cxcelsius Townes 



Polypedilum (Polypedilum) pedatum excelsius Townes, Amer. Midi. Nat., vol. 34, 

 p. 55, 1945. 



Male: Wing length 3.18 mm.; leg ratio 1.08; antennal ratio 1.05. 



Material examined: In USNM: 1 male, Elk Valley, Del Norte Co., 

 Januar} T 1948, light trap, R. Coleman. 



Previous California records: Clio, Plumas Co.; Crescent City, 

 Townes, 1945, p. 55. 



Polypedilum (Polypedilum) nigritum Townes 



Polypedilum (Polypedilum) nigritum Townes, Amer. Midi. Nat., vol. 34, p. 56, 

 1945. 



Males: Wing length range 2.18-2.29; mean 2.25 mm. (4); leg ratio, 

 range 1.34-1.49; mean 1.4 (3); antennal ratio, range 1.3-1.44; mean 

 1.38 (4). 



Material examined: In USNM: 5 males, Lagunitas Creek, Marin 

 Co., Oct, 19, 1947, W. 



Polypedilum (Polypedilum) illinoense (Malloch) 



Chironomus illinoensis Malloch, Bull. Illinois State Lab. Nat. Hist., vol. 10, 

 p. 471, 1915. 



Male: Wing length 2.29 mm.; leg ratio 1.62; antennal ratio 1.9. 

 Material examined: In USNM: 1 male, Sunol, Alameda Co., Nov. 2, 

 1947, R. Coleman. 



