Tetbb fossores. 



Family MUTILLID^. 



The insects beloaging to this family have been called " Solitary- 

 Ants," With the true ants, however, they have no very close 

 affinity, but belong to the Fossores. The sexes, J and $ , are 

 solitary ; there are no neuters. The 6 is winged ; the pronotum 

 is produced back at its lateral angles to the base of the wings ; 

 the fore wing has at least one closed cubital cell ; the 1st discoidal 

 cell is always shorter than the 1st submedial cell, and the apex of 

 the abdomen is armed with one or more spines or blunt teeth. 

 The 2 is apterous, has the legs stout, fitted for digging ; the 

 tihiae spinose, the tarsi ciliated, the basal joint of the latter cylin- 

 drical and not pubescent on the inside. 



Key to the Genera, 



a. Abdomen in J and J with deep con- 



strictions between 1st and 2nd, and 2nd 



and 3rd segments 1. Apterogyna, p. 1. 



b. Abdomen in $ and (^ with no such con- 



striction, or if constricted the constric- 

 tion only between the 1st and 2nd 

 segments 2. Mutilla, p. 2. 



Genus AFTEROGYNA. 



Scolia, part., Fabr. Ent. Syst. ii, p. 228 (1793). 

 Apterogyna, Latr. Gen. Crust. Ins. iv, p. 121 (1809). 



Type, A. olivieri, Latr. 

 Range. India and Africa. 



Fig. 1. — Apterogyna mutilloides, S ■ x- 



Characters mostly those of Mutilla. Antenna) setaceous, nearly 

 as long as the head and body united ; scape elongate ; mandibles 

 arched, subdentate ; abdomen with the 1st and 2nd segments 



vor>. r. B 



