28o CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



the same, brown; wings hyaline, stigma and veins practi- 

 cally concolorous with the rest of the wing, or hyaline, 

 except costa, which alone is slightly luteous .aprilinus 



*M. aprilinus Ashmead. 



Reared from the cocoons of Protapanteles congregatus (Say). 

 *M. calais Viereck (new species). 



Type locality: Yalesville, 19 October, 1903 (H. L. V.). 

 M. pieridicola Packard. 



The host of this species is questionably Protapanteles congre- 

 gatus (Say). 



M. vitreus Walsh. 



This is one of the American species hyper-parasitic on the 

 army worm, (Leucania, Heliophila) Cirphis unipuncta. 



M. scitulus Cresson. 



The secondary hosts of this insect are said to be the clouded 

 sulphur butterfly, (C olios) Eurymus philodice, and the sphingid, 

 Smerinthus jamaicensis. 



M. obliquus Cresson. 



This species owes its name to the two oblique brown marks at 

 the base of the second dorsal abdominal segment. 



M. melleus Cresson. 

 This is probably the male of the preceding species. 



M. americanus Cresson. 



M. luteipes Cresson. 



Paniscus Gravenhorst. 



P. geminatus Say. PI. ix, Fig. 9 ; also Howard, Insect Book, 

 PI. x, Fig. 23. 



Length 9-16 mm. ; brownish stramineous ; eyes slate-color in 

 death ; ocelli brown, antennae brownish ; wings hyaline, but with 

 the stigma yellowish stramineous and the veins brownish ; oviposi- 

 tor, i.e., the exserted portion thereof, and the sheaths brown, the 

 former a little longer than the metatarsus or first joint of the tarsi 

 of the hind legs. 



'The records of this species in the collection of the Connecticut 

 Agricultural Experiment Station of New Haven (gathered by 

 W. E. B., H. W. W, B. H. W., P. L. B., and the writer) indicate 



