276 MODERN SYSTEM. 



Pompilus corniculus. Spinola. Dolichurus ater. Latr., Leach. 

 Inhabits ' ■ 



Fam. XV. Larradx. Leach. 



Larrat^. Latreille. 



Thorax with the first segment transverse-hnear : feet short, or mode- 

 rately long: lahrum entirely concealed, or but very obscure: eyes 

 elongate, reaching the hinder margin : ocelli very distinct : antenna 

 inserted near the mouth, the first joint obovoid or inserted in the 

 middle of the face : superior wings not folding longitudinally. 



SxiRPS 1. — Superior wings with two or tliree subuiarginal cells complete. 



a. JSj/es entire, not emarginate. Mandibles without an emarginalion 

 on their internal edge. 



* Antenna thicker- externally : eyes separate. 



Genus 451. GORYTES. Latr., Illig., Spin., Leach. Mellintjs. 

 Fabr., Walck. Vespa. Linn., Geoff. Sphex. Rossi. Ar- 

 PACTUS. Jurine, Panz. Oxybelus. Fabr. 

 Antenna inserted below the middle of the face : mandibles unidentate : 



superior wings with the second submarginal cell sessile. 

 Sp. 1. Gor. quinquecinctus. 

 Gorytes quinquecinctus. Latr., Leach. 

 Inhabits . 



Genus 452. PSEN. Latr., Jurine, Panz., IlUg-, Leach. Trypoxy- 

 LON. Fabr. 

 Antenna thicker externally, inserted in the middle of the face, towards 

 the front : eyes separate : abdomen with the peduncle abrupt and 

 short. 

 Sp. 1. Psen ater. Latr. 

 Inhabits posts and sandy places. 



** Antenna filiform : eyes meeting behind. 

 Genus 453. ASTATA. Latr., Spinola, Leach. Sphex. Villers, Eossi. 



Dimorpha. Jurine, Panz., Illig. 

 Antenna inserted towards the mouth at the base of the clypeus. 



b. Eyes entire, not tinarginate : mandibles emarginate on their m- 

 ternal edge. 



* Superior wiiigs with three submarginal cells. 



Genus 454. LARRA. Fabr., Oliv., Jurine, Pans., Spinola, Latr., 

 I^each. LiRis. Fabr., Illig. Sphex. Villers, Rossi. 

 Antenna filiform : sxiperior zcings with the third submarginal cell nar- 

 row, almost lunate : mandibles without a tooth-like process on their 

 hiternal edge. 



