CLASSIFICATION OF INSECTS. 201 



mostly recurved ; mandibles long, and dentate at 

 the apex ; labium short, with its ligula short and 

 trilobed ; ocelli three, distinct ; wings alike in 

 both sexes ; legs long, spiny ; female armed with 

 a sting : inhabits all sunny banks in sandy situ- 

 ations, running with great activity, and continually 

 vibrating its antennas and wings ; feeds on insects. 

 Ceropales, Pompilus, Aporus. 



707. Sphexes (Sphecites). Larva and pupa 

 as in Scholiites, the food differing only in the 

 kind of insect provided. Imago with the an- 

 tennae composed of thirteen joints, short and 

 recurved in both sexes ; mandibles very long, 

 acute ; maxillae very long, obtuse at the apex of 

 their lacinia ; labium, with its ligula, elongate, 

 bifid, and flexible ; ocelli three ; podeon elon- 

 gate and very slender, whereas in the three 

 preceding orders it is very short ; legs long. 

 Inhabits sandy situations, flying heavily, but 

 running with agility, and feeding on insects. 

 Ammophila. 



708. Larrites (Larrites). Larva and pupa as 

 in the Scholiites^ the former frequently feeding on 

 Cimicites, provided for it by ts parent. Imago 

 with antennae composed of thirteen joints, shorter 

 in the females than the males, and often incras- 

 sated exteriorly ; mandibles less elongate than in 

 the Sphecites, and bifid at the apex ; maxillae 

 very obtuse ; labium short, its ligula short, ob- 

 tuse, and bilobed ; ocelli three ; podeon gene- 



