ART. 15. REVISION OF ICHNEUMOX-FLIES MUESEBECK. 6 



placing Microplitis tuckeri Viereck] and Provancher's species I 

 have been greatly aided by notes kindly loaned me by Mr. A. B. 

 Gahan, which were made by himself on an examination of the types 

 of these species several years ago. 



At this point I wish to thank Mr. A. F. Burgess, in charge of the 

 gipsy moth and brown-tail moth investigations, for making possible 

 the preparation of this paper. I desire also to gratefully acknowledge 

 many helpful suggestions and criticisms on the part of Messrs. Gahan 

 and Rohwer, of the Bureau of Entomology. 



CLASSIFICATION. 



Superfamily ICHNEUMONOIDEA. 

 Family BRACONIDAE. 

 Subfamily Neoneurinae. 



Neoneurinac Bengtsson, Lunds. Univ. Arsskr. N. F. Avd. 2, vol. 14, No. 

 32, 1918, p. 46. 



Following is a translation of Bengtsson's characterization of this 

 group : 



Head broad, short viewed from in front ; thorax at least as broad as 

 head, transverse; vertex short; vertex, temples and cheeks im- 

 margined ; occiput not at all excavated ; clypeus truncate anteriorly ; 

 labrum prominent, the apex rotundate ; eyes smooth ; antennae shorter 

 than body, with 13 to 16 segments, the segnients distinct; mandibles 

 narrow, crossing at apex, bidentate ; palpi very short, concealed, the 

 maxillary 2-segmented, the labial 1-segmented ; thorax thick ; mesono- 

 tum broad, convex, abruptly declivous in front; notauli wanting or 

 weakly indicated. Anterior wings with stigma large, broadly ovate, 

 provided with a slight extension apically, and emitting radius a little 

 before its middle ; radius with 3 abscissae, the 1st and 2d very short ; 

 radial cell very short, narrow, remote from apex of wing; 3 cubital 

 cells, the 2d small, a little longer than broad, trapezoidal ; brachial cell 

 lengthened, acuminate, open, almost twice as long as discoidal ; veins 

 often inconspicuous or partly obsolete. Posterior wings with radial 

 cell not divided, discoidal cell wanting, nervellus wanting or not at 

 all distinct. Legs subequal, the posterior pair slightly longer and 

 thicker, tibial spurs long, tarsal claws minute, anterior tarsi of female 

 with greatly elongated pulvilli. Abdomen narrow, sublinear, sessile, 

 flat above, with eight distinct segments, valvula ventralis of female 

 not elongate; ovipositor very short, hardly exserted. Body small, 2 

 to 4 mm. long. 



The NeoneuHnae differ most strikingly from the Micro gasterinae 

 in the exceedingly short palpi; the long, slender tarsi, with very 



