378 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 83 



Color: Head green, usually with violaceous or brassy reflections; 

 vertex, front laterad of carina, temples, and hyperclypeal area rarely 

 definitely brassy or cupreous; flagelluin of antenna grayish black 

 with apices sometimes reddish; scape concolorous with head; thorax 

 green to violaceous-green, the axillae often brassy or with a brassy 

 reflection; abdomen violaceous with green or greenish reflections; 

 legs (outer faces at least) green; anterior tibiae in large part testa- 

 ceous to brown, often with only a green stripe above; tarsi testaceous 

 to pale reddish brown; wings hyaline, veins testaceous to brown. 



Male. — Length about 3.5-4 mm. Essentially similar to female; 

 differing largely in having the punctate portion of dorsum of thorax 

 in large part bronzy or cupreous, the abdomen green or black with a 

 blue-green reflection, and the intermediate tibiae sometimes in large 

 part brown. Portion of scape bearing sensorial punctures fairly 

 broad apically, and comprising somewhat over one-third to nearly 

 one-half of scape, the sensoria rather fine and not dense. 



r?/2?e.— U.S.N.M. no. 49777. 



Type locality. — Rosslyn, Va. 



Remarks. — Described from 18 females and 2 males. The type and 

 allotype bear the following data: "Rosslyn, Va., Sept. 3, 1923, 

 captured on thistle." Ten of the female para types and the one male 

 paratype are also in the National Museum. Of these, two females 

 bear the same data as the type; another is from Barcroft, Va. (Aug., 

 J. C. Bridwell); five females were reared from Anisota senatoria 

 Abbot and Smith (July, Aug., and Sept.) under the Melrose High- 

 lands Laboratory no. 1243lHlb and are from Mystic, Conn.; one 

 female was reared from the same host species (Aug.) under the Mel- 

 rose Highlands Laboratory no. 12431J2, and is from Bristol, Vt.; 

 one female is from an unknown locality. The single male paratype 

 was also reared from A. senatoria (July) under Melrose Higldands 

 Laboratory no. 12431H2, and is from Elmira, N. Y. Of the remaining 

 seven, one is in the collection of the Academy of Natural Sciences of 

 Philadelphia from (?Pitman) New Jersey (Aug.); two are in the col- 

 lection of the Melrose Highlands Laboratory — one from Southern 

 Pines, N. C. (Sept., A. H. Manee), the other from Somerville, N. J., 

 where it was reared by the writer (Aug. 25, 1924), under the laboratory 

 no. 11744J2a, from Datana integerrima Grote and Robinson; and 

 four are in the American Museum of Natural History in New York 

 and were taken in the valley of the Black Mountains, N. C. (Aug. and 

 Sept.), by W. Beutenmiiller. The specimens reared from Ari^sota 

 and^Datana were likely hyperparasitic. 



PEHILAMPUS REGALIS, new species 



Female. — Length about 3.5 mm. Head: Frons with a prominent 

 carina extending from behind an terior ocellus downward on each side 



