ZENILLIA AND ALLIED GENERA SELLERS 87 



toward vertex ; antenna black, third segment three and one-half times 

 as long as second. 



Thorax shining black, thinly gray pollinose, marked by five meso- 

 notal vittae; black scutellum with a pair of weak discal scutellars; 

 midtibia with three median anterolateral bristles; hind tibia unevenly 

 ciliate ; third vein with two bristles at base. 



Abdomen, including dorsal vitta, shining black all except a very 

 narrow basal border on segments 2, 3, and 4, which are grayish polli- 

 nose ; pollen confined more to base and sides of segments ( fourth seg- 

 ment appearing to be almost without pollen in some specimens) ; first 

 and second segments with a pair, and third with a row, of marginal 

 macrochaetae; fourth segment with marginal and submarginal bristles. 



Female (allotype). — Front at narrowest 0.28 head width; seven 

 frontal bristles, three reclinate preverticals; gena one-eighth eye 

 height ; third segment of antenna twice as long as second. Midtibia 

 with two median anterolateral bristles; pulvilli one-half length of 

 male pulvilli. 



The paratype material varies as follows : Front in male 0.26 to 0.27, 

 in female 0.28 to 0.30, head width; male with from seven to nine frontal 

 bristles, female usually with seven, usually two reclinate preverticals; 

 facial ridge bristly on lowest one-fifth to one-fourth; gena usually 

 one-eighth eye height, some female palpi brownish. One female with 

 four sternopleural macrochaetae on one side ; discal scutellars usually 

 present, two males lacking them; mid tibia usually with two median 

 anterolateral bristles. 



Type and allotype locality. — Franconia, N. H. 



Distribution. — New Hampshire 3, Massachusetts 3, Colorado 1, Dis- 

 trict of Columbia 1, Indiana 1, Idaho 1, Wyoming 1, Nevada 1, 

 Washington 1. 



Type.— Mule, U.S.N.M. No. 54142. 



Host. — Crambus trisectus (Walker) 5. Published record : Crambus 

 mutabilis Clemens (Ainslie). 



Remarks. — The material examined consisted of the type and one 

 male paratype collected July 30, 1915 (Townsend) ; the allotype and 

 four male paratypes, July 31, 1915 (Townsend) ; two male paratypes, 

 Fabyans, N. H., August 19, 1914 (Townsend) ; two female paratypes, 

 Mt, Holyoke Gap, Mass., September 18, 22, 1914 (Townsend) ; one 

 female paratype, Washington, D. C, May 19, 1927; one female para- 

 type, Tennessee Pass, Colo., July 11, 10,240 ft. (Aldrich) ; one female 

 paratype, Lafayette, Ind., August 24, 1920. Exp. 20238 (Blum) ; one 

 female paratype ex Crambus trisectus (Walker), Lafayette, Ind., 

 Knoxville No. 2040 (Larrimer) ; four males ex C. trisectus (Larrimer) ; 

 one male and one female, June 21, 1888, No. 3679 ° ; one male and three 

 females collected in various places by Townsend, Aldrich, Morrison. 



