304 THE CANADIAN ENTOMOLOGIST. 



Table of Subfaniiiies. 



Abdomen with the first segment broadly sessile with the second, without 



a distinct constriction or furrow between, and never much narrowed 



or petiohform, although sometimes subnodose in some 



males Subfamily I., Mutillinre. 



Abdomen with the first segment J>etiolate or pet ioli/or/n, never hToa.d\y 



sessile with the second, but much narrowed at apex, and usually 



wit/i a constriction or furrow between it and the 



second Subfamily II., Ephutinse. 



Subfamily I. — MutilliniE. 



This group has apparently reached its highest development in 



Europe, Africa and Asia, the typical forms found in America being less 



numerous ; the others show a closer affinity with the next subfamily or 



the Ephutince, tribe Sphaerophthahnini. 



Two minor groups or tribes may be recognized by the following 



characters : 



Eyes small, rounded, hemispherical or ellipsoidal, prominently convex, 



smooth and highly polished, not facetted, or with the facets vaguely 



defined, except in $ Tricholabiodes, Psetidophotopsis and Alloneiirion, 



which have large oval eyes, more or less facetted, that extend to tiie 



base of the mandibles Tribe I., Photopsidini. 



Eyes larger, not rounded or hemispherical, ovate, obovate or ellipsoidal, 



always distinctly facetted, and in the $ sometimes emarginate 



within Tribe II., Mutillini. 



Tribe I. — Photopsidini. 



The majority of the males in this group more closely resemble those 



in the family Myrmosidas, tribe Chyphotini, than any of the others, and this 



resemblance has influenced me in placing the tribe at the head of the 



family Mutillidce, although in cephalic characters, and particularly in the 



rounded eyes, ihey are evidently allied to the tribe Sphaerophthahnini, 



some of the females having been described originally in the genus 



Sphaerophthalma, Blake. 



Table of Genera. 

 Males I. 



Females 20. 



I. Eyes large, oval, not hemispherical, occupying most of the sides 

 of the head and extending to base of mandibles, usually with a 

 feeble sinus in front and behind, delicately facetted 2. 



