No. 22.] HYMENOPTERA OF CONNECTICUT. 203 



stramineous; wings hyaline, areolet quadrate. Length 



3 mm mamestrae 



4. Fore and mid coxae at least mostly stramineous 5 



Fore and mid coxae as well as hind coxae mostly black or 



blackish; tegulae stramineous; first dorsal abdominal plate 

 finely sculptured; color of legs and length as in Microgaster 

 brittoni waldeni 



5. Hind coxae stramineous or yellowish beneath 6 



Hind coxae black or blackish beneath. Length 3.5 mm.. . actuosus 



6. Scape blackish; length 2.5 mm.; body mostly black; antennae, 



labrum, and mandibles blackish, palpi whitish; legs red- 

 dish, coxae, except at apex, hind metatarsus, and all claws 

 blackish; tegulae stramineous; wings subhyaline, areolet 



quadrate ceratomiae 



Scape yellowish hyphantriae 



7. Tegulae and coxae mostly black or blackish 8 



Tegulae and coxae mostly or at least partly reddish, stra- 

 mineous or yellow; scape yellowish; second dorsal abdom- 

 inal segment not rugose; body mostly black; first dorsal 

 abdominal segment laterally, and first, second, and third 



ventral segments, and second and third dorsal abdominal 

 segments mostly yellowish or stramineous; antennae brown; 

 legs stramineous to brownish, except hind tarsi, which are 

 dark brown. Length 3 mm varicolor 



8. Stigma entirely blackish; legs colored as in Microgaster brittoni. 



Length 2.5 mm quintilis 



Stigma only partly blackish, the greater part of basal half 

 stramineous; legs, except coxae, which are black, and tro- 

 chanters, tarsi, great part of basal half of mid and hind 

 femora, which are brown, stramineous. Length 2.5 mm. 



melianae var. 



M. maturus Weed. 

 M. ceratomiae Riley. 



Parasitizes the larva of the four-horned sphinx (Ceratomta 

 amyntor = C. quadricomis) which feeds upon the elm. It is 

 also on record as a parasite of a Smerinthid larva. The cocoons 

 are as in actuosus but ribbed. 



M. mamestrae Weed. 



Parasitic upon the painted mamestra (Mamestra picta), 

 the larva of which is especially destructive to cabbages and beets, 

 though it eats a great many other plants. The cocoons are red- 

 dish brown and ribbed. 



