CLASS V. IXSECTA. 279 



** Antcnne titichcr touards their extremities, inserted about the mid- 

 dle of the face : chjpeus trilobate. 



Genus 463. CEllCERIS. Latr., Illig., Spinola, Leach. Spiiex. 

 Scha;ff'er, Villers, Rossi. V'espa. Geoff., Oliv., Hairis. Pm- 

 LANTHUS. Fubr., Jurinc, Paiiz. Bembex. liossi. Crabko. 

 liossi. 

 Antenrice gradually thicker externally, very much approximating at 

 their l)asc, almost as long as the thorax, the third joint somewhat 

 c,\lindric : t/iuiidiblcs with a tooth in their internal edge : superior 

 wings with the second suhmarginal cell petiolated. 

 Sp. 1. Cer. quudricinctus. 



Philanthus quadricinctus. Fubr., Punz. Cerceris quadricinctus. Leach. 

 Inhabits ? 



Fam. XVII. Vespab^e. Leach. 

 V ESP A R I.E. Latreille. 



Superior wings folded longitudinally: thorax with the first segment 

 forming an arc, prolonged l)ehind even to the origin of the sujiefior 

 wings : antenna; twelve-jointed, with their extremities pointed : Up 

 with three glandiferous divisions, or with four long plumose seta;. 



Stirps 1. — Mandibles longer than broad, anteriorly meeting like a 

 rostrum : cli/pcus cordiform, with the point porrected, and more or 

 less truncated : Up having four glandular points at its extremity, 

 parted into three pieces, the middle one large, and bifid or notched 

 at its extremity : superior xvings doubled, three suhmarginal cells 

 complete: marillari/ putpi six-jointed, not very much shorter than 

 the labial ones. 



Genus 464. ODYNERUS. Latr., Leach. Vespa. Panz., Fair. 



Abdomen ovoid-conic, the second segment Ijroader than the first : 7iiux- 

 illary palpi with the tv.o or three first joints extending beyond the 

 extremity of the maxilke : maxilUe with the terminal lobe short, 

 short-lance-shaped. 



Sp. 1. Ody. parietiniis. 



Vespa parietina. Fabr. 



Inhabits walls. 



Stirps 2. — Mandibles longer than broad, long quadrate, with their ex- 

 tremities obliquely truncated : c/ypeus almost quadrate : lip with the 

 intermediate division a little lengthened, cordiform. 



Genus 465. VESPA of authors. 

 Mandibles (at least of the females and neuters) with the second tooth 

 much broader than the two under ones, the upper one obtuse : cly- 

 pcus with the anterior margin broadly truncate, and somewhat emajr- 



