HYMENOPTERA. 467 



thorax being very indistinctly marked with fulvous ; the post- 

 seutellum is frequently yellow. 



114. Cerceris elegans. B.M. 



Male. Length 3 lines. — Black, coarsely punctured ; the face 

 below the antennae, the scajje in front, and the mandibles, yellow, 

 the tips of the mandibles ferruginous ; the anterior margin of 

 the clypeus rounded ; the anterior angles of the face produced into 

 small quadrate lobes ; the flagellum and scape behind ferruginous. 

 Thorax : a spot on each side of the collar and the tegulae in 

 front yellow ; wings smoky-hyaline and beautifully iridescent ; 

 the legs yellow, with the coxa? and the femora at their base more 

 or less rufo-piceous ; the metathorax very coarsely rugose. 

 Abdomen : the two basal segments ferruginous, the apical mar- 

 gin of the second segment yellow ; an elongate yellow spot on 

 each side of the following segments on their a})ical margins, the 

 spots widest at the margins of the segments and pointed within. 



Hab. East Florida. (Coll. E. Doubleday, Esq.) 



115. Cerceris rufo-picta. B.M. 



Male. Length 4 lines. — Black, coarsely punctured ; the face 

 yellow below the antennae ; the anterior margin of the clypeus 

 black, crenulated, and angular; the anterior margin of the face 

 has on each side an angular filament close to the eye ; the man- 

 dibles yellow, their tips ferruginous ; the antenn<c ferruginous ; 

 the flagellum fuscous above towards the apex, the apex pale. 

 The prothorax, tegulae, scutellura, post-scutellum, with some- 

 times a spot on each side, and the legs, ferruginous; the wings 

 fusco-hvaline, the apical margins of the anterior wings darkest. 

 Abdomen : the two basal segments ferruginous ; the a])ical mar- 

 gin of the third with a narrow ferruginous band ; the fourth and 

 following segments more or less banded at the sides with ferru- 

 ginous or sometimes with reddish-yellow. 



Hab. East Florida. (Coll. E. Doubleday, Esq.) 



Genus 15. PHILANTHUS. 



Vespa, pt., Fabr. Syst. Ent. 362 (\775). 

 Crabro, pt., Rossi, Mant. i. 138 (1/92). 

 Philanthus, pt., Fabr. Ent. Syst. ii. 288 (1/93). 

 Simblephilus, Jurine, Hym. 185 (180/). 

 Trachypus, Klu^, Berl. Mag. iv. 43 (1810). 

 Anthophilus, Dahlb. Hym. Europ. i. 497 (1843-5). 



