278 MODERN SYSTEM. 



Fam. XVI. Crabkonid.i. Leucli. 



Crabuoxites. Lafrcille. 



Tlwrar with the first segment transversc-lincar : feet short, or mode- 

 rately long : liihrum entirely concealed, or but obscure : eyes not 

 reaching the hinder part of the head : ocelli very distinct : superior 

 zcings not folded longitudinally : antenna: inserted at the mouth, with 

 the first joint cylindric or conic, or towards the middle of the tace. 



StiTvPS 1. — Superior wings with one or two complete submarginal cells. 



* Mandibles with their extremities bifid. Superior icings loith but one 



recurrent ncrvurc. 

 Genus 4 J9. CRABRO. Fabr., Oliv., Rossi, Jurine, Panz., Illig., 

 Spinola, Leach. Spiiex. Linne, Villers. 

 Antenna; with the first joint long and cylindric : superior wings with 



one complete sub-marginal cell. 

 Sp. 1 . Cra. cribarius. Fabr., Latr. 

 Inhabits sand-banks. 



Genus 4G0. STIGMUS. Jurine, Pnnz., Illiger, Spinola, Lair., 

 Leach. 

 Anicnncs with the first joint oliconic : superior zcings with two complete 



submarginal cells, and two discoidal cells. 

 Sp. 1. Stig. ater. 



Stigmus ater. Jurine, Lair., Leach. 

 Inhabits .? 



** Mandibles strong, many-toathcd : superior wings with two recur- 

 rent ne7'vures. 

 Genus 461. PEMPIIEDRON. Latr., Fabr., Spinola, Leach. Ce- 

 MONUS. Jurine, Fanz., Illiger. 

 Superior wings witli the submarginal cell not narrower towards the 



apex; nutenne with the first joint longest, thickest. 

 Sp. 1. Fern, jmicolor. 



Pemphetlron unicolor. J^atr., Leach. Cemonus unicolor. Jurine. 

 Inhabits ^ 



SiiRPS 2. — Superior wings with three complete submarginal cells. 



* Antennae inserted at the mouth, fdiforjn: cli/peus not trilobate. 

 Genus 462. MELLTNUS. Fabr., Pnnz. ^Jurine, Illig., Spinola, 



I,rach. Sphex. De Geer, Cuv., Fill. Vr.sPA. Linni, Rossi, 



TIai ris. 

 Abdomen distinctly pedunculated : tarsi terminated by a thick joint 



bearing a large pulvillus. 

 Sp. 1. jMel. mi/staceics. 

 Inhabits sand-banks. 



