410 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 57. 



propodeal carinae strong; basal area more than two times as wide as 

 long; areola distinctly wider than long, costulae received behind 

 middle; abdomen smooth and shining; first tergite subpetiolate; 

 chitinized basal part of first sternite terminating before a line drawn 

 tangent to the anterior margin of the spiracle; ovipositor as long as 

 abdomen. Entirely rufo-ferruginous; apices of antennae brownish; 

 wings yellowish hyaline with the apical margin dusky; venation, 

 including stigm.a, practically the color of the wing; ovipositor and 

 sheath yellowish with brownish apex. 



Type locality. — Webber Creek, California. Described from one 

 female collected on Alnus rliombifGlia, February 6, 1915, by F. B. 

 Herbert. 



Type.—Csit. No. 22135, U.S.N.M. 



LABENA GRALLATOR (Say). 



Cryptus grallator Say, Boston Journ. Nat. Hist., vol. 1, 1836, p. 236. 

 Mesochorus fusdpennis Brull^e, Hist. Nat. Ins. Hj'^m., vol. 4, 1846, p. 250. 

 Labena grallator Cresson, Proc. Ent. Soc. Phila., vol. 3, 1864, p. 400. — Walsh, 

 Trans. St. Louis Acad. Sci., vol. 3, 1873, p. 62. 



The type of grallator Say is lost but the species was first recog- 

 nized by Cresson and the specimen in Academy Natural Science, 

 Philadelphia, bearing the name label in Cresson's hand is considered 

 as the neotype of this species. The type oi fuscipennis (Brulle) has 

 not been examined, it is probably in the Paris Museum. 



It is impossible to say that fusdpennis (Brulle) is a synonym of 

 grallator as here defined, but since other authors have considered it 

 the same it seems best to treat it as such until the type has been 

 studied. 



The wings of grallator are uniformly dark l)rown in both sexes 

 and the stigma is brownish-ferruginous; the antennae are without a 

 distinct annulus although in some females they are paler in the middle; 

 ovipositor subequal in length with the abdomen. The areolation of 

 the propodeum is subject to considerable variation but in the speci- 

 mens examined the basal area is longer than wide or the length and 

 width are subequal. 



Distribution. — Discussion of species based on neotype and on 

 specimens from New Orleans, Louisiana, (Shufeldt) ; Texas (Bel- 

 frage) ; St. Louis, Missouri (Riley) ; Lawrence, Kansas (Hugo Kahl) ; 

 Centerville, Jacksonville (Ashmead) , Biscayne, Florida; Washington, 

 District of Columbia; Highspire, Pennsylvania (W. S. Fisher); and 

 West Cliff, Colorado (T. D. A. Cockerell). 



Hosts. — Walsh records rearing this species from hickory at the 

 same time as he reared OesraspJiorus cinctus Fabricius and this has, 

 therefore, been considered as a host for the species. The record is 

 not entirely satisfactory. Chittenden records grallator as a parasite 



