No. 22.] HYMENOPTERA OF CONNECTICUT. 197 



rule, the remaining veins lighter; legs stramineous, hind coxae 

 black, sometimes brownish beneath, tip of hind tibiae either black 

 or chisky or concolorous, hind tarsi generally dusky; abdomen 

 with a more or less distinct median welt on the second dorsal seg- 

 ment; lateral margin of first and second and generally of the 

 third dorsal abdominal segments stramineous to reddish, ven- 

 trally this color takes up all of two or three segments ; ovipositor 

 slightly extended beyond tip of abdomen, often entirely hidden 

 from above. Cocoons lemon-yellow. 



This European parasite of the cabbage-butterfly, (Pieris) 

 Pontia rapce, was, in 1883, purposely introduced into the 

 United States by the United States Government. During the 

 autumn of 1904 it held its host under complete control in the Dis- 

 trict of Columbia, killing every " worm " which came under the 

 observation of Mr. F. H. Chittenden. In Europe it is said to be 

 parastic on the gipsy moth (Porthetria dispar), (Pyrameis) 

 Vanessa atalanta, (P.) V. cardui, Vanessa urticce, Aporia 

 cratcegi, Bomhyx mori, and other Lepidoptera. 



°A. (P.) atalantae (Packard). Scudder, Butterflies of New 

 England, Vol. iii, PI. 88, Fig. 13. Hosts {Pyrameis) Vanessa 

 atalanta, (Vanessa) Aglais milberti. Cocoons pure white in 

 color, arranged on end, side by side, in masses covered with loose 

 silk. 



°A. (P.) cassianus Riley. 



Host: iTerias) Xanthidia nicippe. Cocoons slaty in color 

 and solitary. 



°A. (P.) euchaetis Ashmead. 



Cocoons whitish and bunched together. 



A. (P.) militaris Walsh. 



Parasitic on the army-worm {Leucania, Heliophila) Cirphis 

 unipuncta. Cocoons whitish with a brownish tinge and bunched 

 together. 



Orange, July, August, 1914 (W. E. B.). 



A. (P.) radiatus Ashmead. 



Has been reared from an unknown larva feeding on leaves of 

 Plantago major. New Haven, 4 July, 1905 (H. L. V.). 

 °A. (Pseudapanteles) consimilis Viereck. 



Female : length 3.5 mm. ; flagel blackish brown through- 

 out, scape and pedicel mostly yellowish, mandibles yellowish 



