No. 2326. THREE TRIBES OF WHNEUMONINAE—CUSHMAN. 43 



was definitely proved by Fiske in his earlier work. Living as a 

 primary parasite of pupae of lepidoptera it would of necessity be 

 internal; and the writer believes that in the cases where Fiske and 

 Thompson thought it to be primnry the remains of the true primary 

 were simply not found. 



THERONIA FULVESCENS MELLIPENNIS Viereck. 



Theroniafulvescens,v&rietYmellipennisYi'E-R'E.cK, Trans. Amer. Ent. Soc.vol. 29, 

 1903, p. 87, female. Type.— Acad Nat. Sci. Pliila. 



This variety has already been discussed. It is based on a single 

 female from Beulah, New Mexico. 



THERONIA MELANOCEPHALA (Brullg). 



Pimplamelanocephala Brulle, Hist. Nat. Ins., Hym., vol. 4, 1846, p. 99, female. 

 Pimpla melanocephala Bnille, Walsh, Trans. St. Louis Acad. Sci., vol, 3, 1873, 



p. 131. 

 Theronia vielanocephala (Brulle) Cresson, Trans. St. Louis Acad. Sci., vol. 3, 



1873, p. 132, note. 



Discussion based on fifteen females and twelve males, all in the 

 National Museum. 



Difl'ers ivom fulvescens as follows: Face medially tuberculate and 

 strongly, densely punctate; eyes merely sinuate opposite antennae; 

 postocellar line distinctly longer than lateral ocellus; epomia strong; 

 sternauli wanting; lateral carinae of propodeum strong throughout, 

 costella developed below, spiracle barely half as long as height of 

 pleural area, its lower end distinctly removed from pleural carina, 

 median carinae convergent basally ; discocubital vein strongly curved, 

 not at all angulate in middle; hind femur with at most an obsolete 

 scrobe; first tergite in profile subangulate above, much longer than 

 second. Head black, facial tubercle, clypeus, and mandibles more 

 or less reddish-brown; color otherwise much as in fulvescens but 

 generally darker, except abdomen, the yellow nearly absent and the 

 piceous color if present on the thorax usually confined to the sides 

 of the pronotum; apical joint of hind tarsus blackish. 



In color this species is somewhat less variable than is fulvescens, 

 but the variation in size is practically the same, females examined 

 measuring from 7 to 13 mm. and males from 7 to 12 mm. in length. 



The National Museum series includes specimens from Massachu- 

 setts, New York, Indiana, West Virginia, Maryland, and Virginia, 

 while Provancher had it from Canada. 



There are no biological records associated with any of the speci- 

 mens examined, but it has been recorded as reared from Porthetria 

 d%s])ar (Linnaeus), Malacosoma americana (Fabricius), and Halisidota 

 maculata Harris, in the second case associated with (Pimpla) EpUaltes 

 pedalis (Cresson) . 



