ZENILLIA AND ALLIED GENERA — SELLERS 79 



Abdomen black, subshining, first segment black, remaining segments 

 whitish pollinose at base; first segment with a weak pair, second with 

 a pair, and third with a row of marginal macrochaetae; second and 

 third segments with a pair of discal macrochaetae; fourth segment 

 covered with macrochaetae. 



Length 5 to 8 mm. 



Type locality. — Moscow, Idaho. 



Distribution. — Idaho 2, Montana 1, Colorado 3, Nevada 1, New Mex- 

 ico 1, Washington 1, Pennsylvania 1. Published record, Illinois 1. 



7^.— Male, U.S.N.M. No. 6212. 



Hosts. — Autographa calif ornica (Speyer) 1; Loxostege commixtalis 

 (Walker) 2. Published record : Aldrich and Webber list, from Wal- 

 ton's manuscript, Nephelodes emmcdonia (Cramer) (Kahl) . 



Remarks. — The material examined consisted of the male type, a male 

 paratype, and a female paratype, August 26, 1895, Moscow, Idaho 

 (Aldrich) ; 2 male paratypes, Lewiston, Idaho (Aldrich) ; one male 

 ex Autographa calif ornica, Edgar, Montana; one male ex Loxostege 

 commixtalis (Maxson), Longmont, Colo., 1916; one male ex L. com- 

 mixtalis, Fort Collins, Colo., July 30, 1932; collected specimens, six 

 males and one female (Baker, Aldrich, Walton, Harbeck). 



Adults, May to August. 



5. APLOMYA ESTIGMENENSIS, new species 



Exorista afflnis of authors (nee Fallen) Coquillett, U. S. Dept. Agr., Div. Ent, 

 Tech. Bull. 7, pp. 12, 94, 1897. — Adams, Williston's Manual of North American 

 Diptera, p. 358, fig., 1908.— Tothiix, Can. Ent., vol. 45, p. 70, 1913. 



Zenillia afflnis of authors (nee Fallen) Aldrich and Webber, Proc. U. S. Nat. 

 Mus., vol. 63, art. 17, pp. 34-35, 1924.— Johnson, List of New England Diptera, 

 p. 197, 1925 ; Biological survey of Mount Desert region, The insect fauna, pt. 

 1, p. 201, 1927. — Essio, Insects of western North America, p. 581, 1926. — 

 West, Cornell Univ. Agr. Exp. Stat. Mem. 101, p. 814, 1928— Schaffner and 

 Griswold, U. S. Dept. Agr. Misc. Publ. 188, p. Ill, 1934. 



Tachina afflnis (Aldrich and Webber) (nee Fallen), Townsend, Manual of 

 myiology, pt. 4, p. 212, 1936. 



Male (type). — Head with front at narrowest 0.26 head width; 

 frontal row of 11 or 12 bristles irregularly arranged, extending from 

 on a level with well below arista to 2 reclinate preverticals ; very weak 

 outer vertical bristle ; facial ridge bristly on lowest one-fourth ; gena 

 one-seventh eye height, blackish-gray pollinose ; paraf rontal and face 

 silvery-black pollinose; antenna black, third segment twice length 

 of second ; arista thickened on basal one-fourth, penultimate segment 

 elongate, at least as long as broad ; palpus yellow. 



Thorax black, subshining, thinly covered with gray pollen ; five black 

 mesonotal vittae; apical half of scutellum rufous, basal half black; 

 apical scutellars strong, suberect; legs black, pul villi long; midtibia 



