220 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



men, are stramineous; dorsum of abdomen black, except 

 third dorsal segment, which is nearly orange in color .... 



pyraustae 



2. Antennae stramineous uniformis 



Antennae blackish or brownish delicatus 



*M. pyraustae Viereck (new species). 



Length 5 mm. ; exserted portion of ovipositor 5.5 mm. long. 



Type locality: Westville. Bred from a lot of material from 

 which the fern leaf -roller (Pyrausta theseusalis) was reared, 

 upon which it is probably parasitic. 14 July, 1900 (W. E. B.). 



M. delicatus Cresson. 



This species has been bred from tortricid larvae, and is an 

 American parasite of the cosmopolitan codling moth (Carpo- 

 capsa pomonella). 



M. ? uniformis Provancher. 



Helconidea Viereck. 

 Helcon Authors, not Nees. 

 Type : Helcon (Equator Nees. 



H. ligator (Say). Bracon ligator Say. Howard, Insect Book, 

 PI. viii, Fig. 41 {Helcon ligatus). 



Length 9 mm. ; black ; abdomen and legs rufous, tarsi blackish 

 at tips ; antennae with a white annulus beyond the middle on the 

 female; wings hyaline, veins fuscous; hind tibiae fuscous, their 

 tarsi whitish ; exserted portion of ovipositor blackish. 



Eumacrocentrus Ashmead. 



E. americanus (Cresson). 



Length 14 mm. ; mostly black, except the legs, which are red- 

 dish brown stramineous; exserted portion of ovipositor about 

 three times the length of the body ; antennae about 12 mm. long. 



Helcon Nees. 

 Gymnoscclus Foerster. 



H. pedalis (Cresson). 



Length 12 mm. ; antennae about 8 mm. in length ; exserted por- 

 tion of ovipositor 10 mm. long ; color approximately as in Euma- 

 crocentrus americanus, except the femora, tibiae and tarsi of the 

 hind legs, which are all mostly blackish. 



