192 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40. 



The paratypes are from Boonton, New Jersey, August 14, 1901, 

 collected by Geo. M. Greene; Canada; Pequaquawaming Point, 

 Baraga County, Michigan, "woods on maple," July 23, 1903, col- 

 lected by Morgan Hebard; Indiana (Baker), No. 2002; Harrisburg, 

 Pennsylvania, June 8, 1908, August 22, 1908, P. R. Myers, collector; 

 New Haven, Connecticut, August 10, 1909, A. T. Bourne; Phila- 

 delphia, Pennsylvania, July 4, 1899, H. Skinner. 



In the smallest paratype the body is 17 mm. long and the sheaths 

 of the ovipositor 22 mm. long. 



MESOCHORUS INFERNALIS, new species. 



Female. — Length, 2.5 mm. Related to M. scitulus Cresson, from 

 which it may be distinguished as follows: Basal areas brownish, 

 basal area about three times as wide at base as at apex and nearly 

 four times as long down the middle as wide at apex, areola a little 

 more than twice as long as wide between the costulse, sides of areola 

 basad of costulsB a little shorter than sides of areola beyond the 

 costulse and about twice as long as the areola at apex, petiolarea 

 about as long as the areola, but twice as wide as the same, one-third 

 as wide at base as at apex, the basal sides a little shorter than the 

 apical sides; basal third of first abdominal segment stramineous, 

 apical third partly castaneous, hind femora stramineous, hind tibiae 

 banded at base and apex with fuscous, their tarsi stramineous. 



Male. — Similar to the female. Basal areas blackish; areola and 

 second lateral area brownish ; apical third of first abdominal segment 

 black. 



Type.— Cat. No. 13480, U.S.N.M. 



Type-locality. — Santa Maria, Texas. Received from the U. S. 

 Department of Agriculture, Bureau of Entomology, under Webster, 

 No. 4612. Reared in connection with Apanteles (Protapanteles) 

 flaviconclim Riley, which is probably its host. The date is March 

 15, 1909. Collector, T. D. Urbahns. 



MESOCHORUS PATULUS, new name. 



Mesochorus areolatus Viereck, Trans. Amer. Ent. Soc, vol. 29, p. 92, separate p. 

 91, 1903; not Provancher, Nat. Can., vol. 14, 1883, pp. 4, 5. 



MESOCHORUS NIGRISIGNUS, new species. 



Female. — Length, 3.5 mm. ; exserted portion of sheaths of the ovi- 

 positor at least two-thirds the length of the first tergal segment; 

 stramineous, shining, head and dorsulum tinged with brownish; 

 pronotal groove not divided by a longitudinal median carina, areola 

 pentagonal, its bounding carinse sharply defined, but little more than 

 twice as long down the middle as wide between the junction of the 

 costulae, the latter width nearly twice that of the areola on its shortest 



