180 BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



distinct, the maigiual iiervure short, about twice as \ou^ as thick, the 

 post-inarfifinal iiervuie waiitinj^, the stignial hmg, obliijiie. 



Habitat. — Brooklyn, New York. 



Types in National Museum. 



This species, as we are informed l>y Mr. Howard, was reared by Col. 

 Nicholas Pike from spider eyj(s in an oranj;e cocoon belonging- to dw 

 family Epcirida'. 



The male, here described, was reare«l by Mr. .1. H. Emerton, in 1871, 

 together with several females, from an orange-colored spider's co.;oou. 



Tribe III. — Teleasini. 



Au extensive tribe with few genera, but numerous in species, distin- 

 guished by the antenna; being inserted ch)se together on a clyi>eal 

 prominence ; by the venation, the postmarginal vein never being devel- 

 oped, the marginal vein always greatly lengthened, and the stigmal 

 vein always minute, scarcely developed ; by the abdomen always beinf: 

 distinctly carinated along the sides, with the third segment the long- 

 est ; and by the Aveak tibial spurs. 



Under this tribe six genera are brouglit together, Tclea-s, Prosacan- 

 tha, and allied genera. 



Except in a single instance, the rearing of Prosacantlia caraborum, 

 by Dr. Kiley, from the eggs of a beetle, ('hlwniiis impunctifronii, noth- 

 ing i^ositively is known of the parasitism of the group. It is possible 

 they confine their attacks to Coleopterous eggs, although Prosacnntha 

 hasalis Forster is recorded as having been reared from Dipterous lar- 

 viv. Since this record is totally at variance with the habits of the 

 whole subfamily SccJionituv, I question its accuracy, as I believe the 

 .whole group are i.'<f::j^ i)arasites. 



The genera may be tabulate<l as follows : 



TAIJLE (»!•' <iENEllA. 



1 KMALKM. 



Abdoiiieu hroadly oval, the first sugiiieiit witlcr tluin lonj? S 



Abtloiaen long-oviil, oiloii^ovate, the liist segment petioliform (loiigerthan wide). 

 First abdominal segment bearing a hori. • postseutellum with three spines. 



Pentacan THA Asbm. 

 First abdominal segment witliont a horn. 



Mesouotura without furrows 2 



Mcsonotum Avitli 2 furrows. 



Metascutellnni with 3 spines Trissacantha Asbm. 



Metascntellnm with 1 8i)ine Xknomkris Walk. 



2. Postscutelliun with a single large spine, mandibles bifid, the outer tooth the 



longer. 



Posterior femora, t ibiie, and tarsi slender; tibial sjmrs Weak .Puo.«*ACANTitA Nees. 



Posterior femora 8w<db'i;, tibia' dilated at apex, the basal tarsal Joint short, 



stout; tibial spurs not weak TELKAsLatr. 



