24 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 6^. 



pruinose, facial ridges bristly on the lowest fourth ; bucca one-twelfth 

 the eye height, bearing only a few hairs besides the stout bristles 

 of the lower border; palpi j'^ellow, quite thickly clothed with fine 

 black hairs; antennae nearly as long as the face, the third joint of 

 male nearly four times and in the female at least three times the 

 length of the second, arista slightly thickened on the basal third, 

 the penultimate joint short. Thorax black, gray pollinose marked 

 with four black vittae, the outer ones broken at the suture; four 

 dorsocentral macrocraetae ; scutellum yellowish with the pollen 

 grayish, bearing three pairs (sometimes four) of long marginal 

 bristles besides the large backward directed, apical pair; in most 

 specimens the apical pair are cruciate, although they are not so in 

 one instance. Sternopleura clothed with fine long hairs and bearing 

 three stout bristles. Abdomen stout, the first segment black, the 

 remaining ones black, gray pollinose the apical portions of these seg- 

 ments less pollinose and often blackish, the fourth segment at apex 

 at least is subshining, black ; sides of the intermediate segments some- 

 times slightly yellowish; abdomen never with a bluish tinge. No 

 discal macrochaetae on the abdominal segments. First and second 

 segment have one pair each of median marginal macrochaetae ; third 

 with a marginal row of uncommonly stout ones, the fourth quite 

 thickly covered with shorter bristles and bearing two irregular rows 

 of macrochaetae on the apical half; abdominal hairs subdepressed. 

 Venter of the third abdominal segment of male destitute of a small 

 patch of hairs. Legs black ; mid tibiae bearing two or more bristles 

 on the outer side near the middle-; hind tibiae densely ciliate. 



Length 10 to 12 mm. 



Described from 12 specimens of both sexes: two were reared from 

 Automeris io Fabricius at West Medford, Massachusetts, issuing 

 May 31, 1895; four were reared from Agrotis ypsilon Kottemburg, 

 in Missouri by C V. Riley; the others from Lehigh Gap, Penn- 

 sylvania (Greene) ; Melrose Highlands, Massachusetts (Townsend) ; 

 Glen Echo, Maryland (Aldrich) ; Lafayette, Indiana (Aldrich) ; 

 and "Wliite Mountains, New Mexico (Townsend). 



Mr. E. G. Reinhard has contributed two additional female speci- 

 mens, reared by him from Autoineris io Fabricius at Woodstock, 

 Maryland. 



7^2/pe.— Male, Cat. No. 25705, U.S.N.M., from West Medford, 

 Massachusetts. 



ZENILLIA INFLATIPALPIS, new species. 



With discal macrochaetae; palpi swollen; three sternopleural 

 bristles ; four dorsocentral bristles. 



Front of female 0.27 of the head width at vertex ; at epistoma the 

 eyes are separated by 0.45 of the head width, much less than usual ; 



