HYMENOPTERA. 467 



thorax being very indistinctly marked with fulvous; the post- 

 scutellum is frequently yellow. 



114. Cerceris elegans. B.M. 



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

 below the antennae, the scape 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 tlagellum 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 j'ellow, with the coxfe 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 apical 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 e3'e ; the man- 

 dibles yellow, their tips ferruginous ; the antennae ferruginous ; 

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

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

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

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

 Abdomen : the two basal segments ferruginous ; the apical 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. 



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



Genus 15. PHILANTHUS. 



Vespa, pt., Fabr. Syst. Ent. 362 (1775). 

 Crabro, pt., Rossi, Mant. i. 138 (1792). 

 Philanthus, pt., Fabr. Ent. Syst. ii. 288 (1793). 

 Simblephilus, Jurine, Hym. 185 (1807). 

 Trachvpus, Klug, Berl. Mag. iv. 43 (1810). 

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



