NOTES AND DESCRIPTIONS OF NORTH AMERICAN PARASITIC 
HYMENOPTERA. 
CHARLES T. BRUES. 
BETHYLID^E. 
CHELOGYNUS Haliday. 
The six species at present known from North America may 
be recognized as follows. In addition to these it is probable that 
several Mexican forms described by Cameron (Biol. Cent. Am. 
Hymenoptera, p. 444 et seq.) under the genus Dryinus belong 
here. 
Females. 
1. Body entirely black 4 
Body wholly or partly ferruginous 2 
2. Entirely ferruginous, mandibles 4-dentate 
ferrugineus sp. no v. 
In part black 3 
3. Head and abdomen black, thorax reddish, mandibles 
4-dentate atriceps Brues 
Ferruginous, abdomen alone black atriventris Cress. 
4. Legs pale rufous 5 
Femora black, except apical part of anterior pair ; 
mandibles 4-dentate grandis sp. nov. 
5. Clypeus pale or rufous, mandibles 5-dentd.te . lienshawi Ashm. 
Clyeus black, mandibles 3-dentate canadensis Ashm. 
CHELOGYNUS FEKRUGINEUS sp. nov. 
Female. Length 5 mm. Entirely ferruginous, except for the 
darker tips of the antennae and tarsi. Head large, the vertex 
gently convex, rugoso-punctate, the front below the ocelli longi- 
tudinally striate-reticulate. Occiput and cheeks shining, sparsely 
punctate, margined as are also the eyes. Antennae ten jointed, 
the scape slightly shorter than the first flagellar joint, which is 
two times the length of the pedicel; following joints about equal, 
two-thirds as long as the first ; scape whitish at base below and 
apical five joints infuscated. Mandibles yellow, with four black 
teeth. Prothorax shining, finely punctured and covered with 
short griseous pubescence, a little longer than the mesonotum ; 
the latter polished, with a few punctures and two distinct furrows. 
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