HYMENOPTERA. 233 



recurved in both sexes ; mandibles very long, acute ; max- 

 illce very long, obtuse at the apex of their lacinia ; labium 

 with its ligula elongate, bifid and flexible ; ocelli three ; 

 podeon elongate 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. Chlorion, a foreign in- 

 sect divided from the genus Sphex, is figured at page ] 45. 



Larrites. Larva and pupa as in the Scholiites, the for- 

 mer frequently feeding on Cimicites, provided for it by its 

 parent. Imago with antenna composed of thirteen joints, 

 shorter in the females than the males, and often incrassated 

 exteriorly ; mandibles less elongate than in the Sphecites, 

 and bifid at the apex ; maxillce very obtuse ; labium short, 

 its ligula short, obtuse, and bilobed ; ocelli three ; podeon 

 generally short and indistinct ; legs moderately long. In- 

 habits sandy situations, frequently settling on stones and 

 leaves and occasionally on umbellate flowers ; feeds on in- 

 sects. Gorytes, Psen, Larra, Lyrops, Dinetus, Trypoxy- 

 lon, Oxybelus, Astata. 



False wasps or Crabronites. Larva and pupa as in the 

 Scholiites, excepting that in this order many are frequently 

 found in the same burrow. Imago with antenna thirteen- 

 jointed, short, and slightly incrassated externally; mandi- 

 bles long, acute, and terminating in a single point ; maxilla 

 obtuse ; labium elongate, its ligula short, dilated, obtuse, 

 and terminating in four lobes ; ocelli three ; head very large, 

 square ; legs short and stout, fore legs often patellated ; 

 body, with its greatest diameter about the ninth segment, 

 very glabrous, black, or black and yellow. Inhabits sandy 

 banks, settling on leaves, stones and umbellate flowers. 

 Cerceris, Philanthus, Crabro, Rhopalum, Stigmus. 



Wasps or Vespites. Larva an obese, inactive maggot, 

 inhabiting a cell provided by its parent, who supplies it 



