196 CONNECTICUT GEOL. AND NAT. HIST, SURVEY. [Bull. 



*A. (P.) lanificus Viereck (new species). 

 Cocoons as in acronycta;. Type locality: Branford, 29 June, 



1905 (Ruth Winkley). 



A. (P.) lasviceps Ashmead. 



Parasitic on Loxostege sticticalis. New Haven, i August, 



1906 (P. L. B.), 4 July, 1905 (H. L. V.) ; Hartford, reared in 

 laboratory, 10 February, 1904. 



°A. (P.) theclae Riley. 



Male : length 2-2.6 mm. ; black ; palpi white ; labrum and 

 mandibles blackish ; antennae sometimes blackish ; propodeum 

 with a slight median longitudinal carina ; wings hyaline ; tegulae, 

 stigma and costa beyond stigma, radius and veins at base of the 

 incomplete areolet, blackish ; tibiae and tarsi stramineous ; 

 apical half of hind tibiae and hind tarsi blackish ; abdomen with 

 first and second dorsal abdominal plates with numerous punc- 

 tures; ovipositor not exserted. 



Parasitic on an unknown species of Thecla. Cocoons white 

 and spun together, making a mat for the dead larva. 



*A. (P.) algonquinorum Viereck (new species). 

 Type locality: Thompson, 15 July, 1905 (H. L. V.); bred 

 from cocoons on water-hemlock (Cicuta). 



*A. (P.) pyraustae Viereck. 

 Type locality: East River, reared 7 August, 1909, from 

 Pyrausta futilalis by Dr. Charles R. Ely. 



°A. (P.) robiniae (Fitch). The Locust Leaf-miner parasite. 



Length 2 mm. ; female with tip of abdomen often dusky ; 



wings pellucid whitish, veins colorless. Host: flattened locust 



leaf-miner (AHacampsis robinella Fitch). Cocoons white and 



promiscuously arranged. 



°A. (P.) glomeratus (Linnaeus). A. pieridivora (Riley). A, 

 pieridis (Packard). 



Length 2.6-3 "^"^- 5 black ; mandibles pale brownish or 

 stramineous ; antennae black, lower side of basal joint and base 

 of flagel often brownish ; palpi from pale stramineous to quite 

 yellow in color; dorsulum coarsely punctate, polished, and 

 sparsely pubescent; propodeum generally with a well defined, 

 slender, median longitudinal carina ; tegulae brownish to black ; 

 wings with costa, stigma and radial vein quite dark brown as a 



