THE CANADIAN ENTOMOLOGIST. 287 



CLASSIFICATION OF THE FOSSORIAL, PREDACEOUS AND 



PARASITIC WASPS, OR THE SUPERFAMILY 



VESPOIDEA. 



BY WILLIAM H. ASHMEAD, A. M., ASSISTANT CURATOR, DIVISION OF INSECTS, 



U. S. NATIONAL MUSEUM. 



(Paper No. 10. — Continued from p. 273.) 

 Subfamily II. — Emboleminte. 



The globose or rounded head, which is never flat, oblong, and the 

 difference in the antennae, the antenna? in males being 10-jointed, in the 

 females 13-jointed, readily separate the subfamily from the Bethylinae. 

 The group comes quite close to the Dryinina?, but in the latter the head is 

 transverse or subquadrate, never rounded, while the antennas are 10- 

 jointed in both sexes 



The genus O/ixon, Cameron, originally described as a Braconid, 

 belongs here, without much doubt, I think, judging from the description 

 and the figure. Cameron says : '• I am unable to point out the natural 

 position of this curious genus. The elongated fore legs give it a look of a 

 Bethylid, to which, indeed, it bears a general resemblance, ; but I feel 

 inclined to regard it as a true Braconid." I have not seen a specimen of 

 this genus, but Mr. Cameron's figure and description clearly show that it 

 belongs here ; the thickened fore femora are characteristic of the group. 



Table of Genera. 



1. Males : antenme 10-jointed 4. 



Females : antennae 13-jointed. 



Wingless or subapterous forms 2. 



Winged forms . 3. 



2. Scape much shorter than the first joint of the flagelium ; form elongate; 



head long, oval, wider than the transverse pronotum ; ocelli wanting; 

 eyes prominent, placed high up on the sides of the head and 

 extending forward to hardly half the length of the head ; antennae 

 long, slender, inserted anteriorly below a line drawn from the base of 

 the eyes ; first joint of flagelium the longest. . . (1) Olixon, Cameron. 



(Type O. testaceus, Cam.) 



Scape much longer than the first joint of the flagelium ; form less 

 elongate; head rounded, with a frontal tubercle; ocelli very minute 

 or wanting; eyes rounded, not prominent. .(2) Pedinomma, Fbister. 



(Type Myrmecomorpha rufescens, Westw.) 



