NO. 1027. DESCRIPTIONS OF NEW HYMENOPTERA, 5— CRAWFORD. 169 



pleurae entirely covered with thimble-like punctures ; legs ruf o-testa- 

 ceous the femora more or less infuscated; front and middle coxae 

 with a large blue spot at base; hind coxae entirely bluish; femora more 

 or less tinged with bluish behind; wings hyaline with a large fuscous 

 band the length of and covering the marginal vein and extending 

 about two-thirds across wing; the anterior part much more deeply in- 

 fuscated than the posterior; marginal vein slightly shorter than stig- 

 ma! (about as 15:18) and slightly thickened; postmarginal much longer 

 than marginal (about 25:15). 



Male . — Un known . 



Habitat — Columbia Falls, Montana. 



Host. — Pissodes, species. 



Type.— Cat. No. 14596, U.S N.M. 



Described from specimens received from the Bureau of Entomology, 

 United States Department of Agriculture, under note number, Hop- 

 kins U. S. No. 8574 (a single specimen, the type) and 8573 (all para- 

 types), collected by Josef Brunner. 



Genus CECIDOSTIBA Thomson. 



The American species do not appear to fit well in this genus, as one 

 at least (0. thomsoni) has both mandibles with three teeth, and Thom- 

 son characterized this genus, Csenacis Thomson and Dinotus Foerster 

 (all of which have the stigmal knob enlarged) as having the right 

 mandible four-toothed and the left three-toothed. There is in the 

 collection a specimen congeneric with C. thomsoni determined as 

 Dinotus species by Dr. Gustav Mayr and obtained by Dr. L. O. 

 Howard for the purpose of ascertaining the number of teeth on the 

 mandibles, and this specimen has both mandibles three-toothed. 

 This illustrates the unsettled condition of this group and for this 

 reason the species are allowed to remain in this genus for the present. 



Doctor Ashmicad, when describing C. dendrodoni, labeled all the 

 material examined "type," but deposited one female in the collec- 

 tions of the U. S. National Museum and gave it a type-number. 

 This specimen (see particulars below) has been accepted as the true 

 type and the remainder of the material, representing in part another 

 species, has been used in the description of one of the new species 

 given below. 



TABLE OP FEMALES OF SPECIES FOUND IN THE UNITED STATES. 



1. Mesopleurse without a large sub triangular smooth area on upper half of mesepi- 



raenon 2. 



Mesopleurse with a large sub triangular smooth area on upper half of mesepimeron . 3. 



2. Marginal and postmarginal veins subequal in length dendrodoni AshTaead. 



Postmarginal vein almost one-half longer than marginal burkei Crawford. 



3. First joint of funicle and pedicel subequal in length polygraphi Ashmead. 



First joint of funicle distinctly longer than pedicel 4. 



4. Prepectus covered with thimblelike punctures ashmeadi Crawford. 



Prepectus almost entirely without thimblelike punctures thomsoni Crawford. 



