MANUAL OF NATURAL HISTORY. 2*29 



II. TRIBE. — Fossomal-Hymenopteka (Fossores). 



Fore-wings not folded ; larvae solitary, feeding 

 on other insects. 



13. Family. — Spine-tailed Wasps (Scoliidae). An- 



tennae short, thick, more or less serrated and 

 convolute in the females ; collar laterally di- 

 lated, extending as far as bases of wings ; 

 abdomen ovate, peduncle short ; abdomen of 

 males ending in three spines ; legs short, ro- 

 bust ; tibiae thick, spinose, or denticulated ; 

 both sexes winged. Burrow in sand. 



14. Family. — Parasitic Spine-tailed Wasps (Sapy- 



gidae). Antennae long, straight, more or less 

 clavate ; collar laterally dilated, extending 

 as far as bases of wings ; abdomen ovate ; 

 peduncle short ; legs slender ; fore-legs not 

 ciliated in the females ; both sexes winged. 

 Parasitic in nests of bees ; live and burrow 

 in sandy situations. 



15. Family. — Dark-ivinged Samd-Wasps (Pompi- 



lidae). Antennae filiform, often convoluted in 

 females ; collar laterally dilated, extending as 

 far as bases of wings, transversely or longi- 

 tudinally quadrate ; abdomen more or less 

 oval, attached to thorax by a short peduncle ; 

 legs very long ; fore-wings with two or three 

 perfect sub-marginal cells. Burrow in sandy 

 places. 



16. Family. — True Sand-Wasps (Sphegidae). An- 



tennae filiform, often convoluted in females ; 



