CLASS V. INSECTA, 
279 
** Antenna thicker towards their extremities, inserted about the mid- 
dle of the fuce : clypeus trilobate. 
Genus 46 CC • SRlS. Latr., IUig, Spmola, Leach. Sphex. 
Sehtettc’ i Men, llossi. Vespa. Geoff, Ohv Hums Phi- 
lakthus. Fabr, Jurine, Pans. Bembex. Rom. Crabko. 
Antenna gradually thicker externally, very much approximating at 
their b£e,. almost as long as the thorax, the third joint somewhat 
cylindric: mandibles with a tooth in their internal edge: superior 
wings with the second submarginal cell petiolated. 
Sp. 1. Ctr. quadrieinctus. . , . . T , 
Philanthus quadrieinctus. Fabr, Panz. Cercens quadrieinctus. Leach. 
Inhabits 1 
Fam. XVII. Vespao/e. Leach. 
Vespari/E. Latreille. 
Superior wings folded longitudinally: thorax with the first segment 
forming an arc, prolonged behind even to the origin of the superior 
wines : antenna twelve-jointed, with their extremities pointed: Lip 
with three glandiferous divisions, or with four long plumose seta:. 
Stirps 1— Mandibles longer than broad, anteriorly meeting like a 
rostrum : elupeus eordiform, with the point porrected, and more or 
less truncated: lip having four glandular points at its extremity, 
pa, ted into three pieces, the middle one large, and bifid or notched 
at its extremity: superior wings doubled, three suhmargmal cells 
complete: maxillary palpi six-jointed, not very much shorter than 
the labial ones. 
Genus 464. ODYNERUS. Latr, Leach. Vespa. Panz, Fabr. 
Abdomen ovoid-conic, the second segment broader than the first: max- 
illary palpi with the two or three first joints extending beyond the 
extremity of the maxilla: : maxilla with the terminal lobe short, 
short-lance-shaped. 
Sp. i. Ody. parietinus. 
Vespa parietina. Fair. 
Inhabits walls. 
Stirps 2.— Mandibles longer than broad, long quadrate, with their ex- 
tremities obliquely truncated : c/ypeus almost quadrate : Up with the 
intermediate division a little lengthened, corditorm. 
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- 
peus with the anterior margin broadly truncate, and somewhat emar- 
