No. 22.] HYMENOPTERA OF CONNECTICUT. 235 



Epirhyssalus Ashmead. 



*E. atriceps (Ashmead). Rhyssalus, 



Length 2.5 mm.; head black; antennae mostly dark brown, 

 first, second and third joints more or less brownish stramineous 

 or pale brown ; palpi stramineous with a brownish cast, mandibles 

 castaneous ; thorax and propodeum reddish, with a strong black- 

 ish cast on dorsum of propodeum; legs stramineous, except the 

 tarsi which are more or less dusky; wings transparent, with a 

 stramineous stigma, veins darker; abdomen reddish to apex of 

 third dorsal segment, black beyond and mostly blackish ventrally ; 

 exserted portion of ovipositor nearly half the length of the ab- 

 domen or a little longer ; sometimes paler and smaller. 



Parasitic on Ar chips rosaceana. 



Type locaHty : New Haven, 4, 7, 14 May, 1904 (H. L. V.), on 

 flowers of gooseberry (Ribes oxyacanthoides) . One male 1.7 

 mm. long from Branford, 28 July, 1905 (H. L. V.). 



Aleiodes Wesmael. 



' Rogas Authors, not Nees. 



Type: A. heterogaster Wesmael. 



Wings hyaline, more or less tinged with brown. 



Key to Species. 



1. Body mostly black; fore and mid legs reddish 2 



Body mostly reddish or stramineous 5 



2. Hind coxae, hind trochanters and femora, except tips of latter, 



reddish , 3 



Hind legs reddish throughout 4 



3. First and second dorsal abdominal segments reddish; anten- 



nae fuscous; hind tibiae with greater part of basal half 



yellowish or whitish. Length 6-8 mm .'. . .terminalis 



Antennae black; hind tibiae with greater part of basal two- 

 thirds reddish brown; mid and hind tarsi dusky; greater 

 part of first, second, and third dorsal abdominal segments 

 reddish. Length 7.5 mm. (male) waldeni 



4. Abdomen reddish, its apex more or less blackish. Length 



8 mm abdominalis 



Abdomen with its first, second, and third dorsal segments 

 reddish, its apex black; dorsum of abdomen covered with 

 dense silvery pubescence. Length 7-8 mm lectus 



5. Color of body not as in parasiticus 6 



Head, propodeum, apex of abdomen, and tips of hind femora 



and tibiae black. Length 6 mm parasiticus 



