156 [January 



Cerceris festiva, n. sp. 



Black, feebly punctured ; face, collar, tegulae, spot beneath the wings, scutel- 

 lum, a longitudinal spot on each side of metathorax, four anterior legs, basal 

 two-thirds of hind tibiae, and apex of the four basal segments of abdomen, yel- 

 low: wings fusco-hyaline, darker at tips. 



Male. — Black, shining, feebly punctured, slightly pubescent ; face, 

 broad frontal and narrow outer orbits, clypeus. carinse between antennae, 

 and base of mandibles, yellow; clypeus large, flattened, rounded at base 

 and in front, the pieces on each side densely clothed and fringed with 

 silvery pubescence ; antennae ferruginous, yellow at base, and fuscous 

 above towards the tips. Thorax shining, very feebly punctured; collar, 

 tegulae, tubercles and a spot just beneath them, scutellum and a large 

 longitudinal spot on each side of the metathorax, yellow ; the latter 

 feebly punctured and polished. Wings subhyaline, the apical costal 

 half fuscous, as well as the tips of the posterior wings. Legs yellow ; 

 the posterior pair, except the basal two-thirds of their tibiae, black ; 

 the four anterior tarsi more or less dusky towards the tips. Abdomen 

 shining, feebly punctured; apical margins of the first four dorsal seg- 

 ments yellow, broad at the sides and much narrowed in the middle ; 

 fifth segment with a small yellow spot on each side ; beneath, the second 

 and third segments each with a yellow band slightly narrowed in the 

 middle. Length -i\ lines; expanse of wings 6 lines. 



Collection. — Dr. J. Gundlach. One specimen. 



Cerceris zonata, n. sp. 



Black, deeply and coarsely punctured ; face, collar, tegulse, spot beneath the 

 wings, scutellums, most of legs, and apical margins of abdominal segments, 

 vellow ; wings subhyaline. darker at tips. 



Female. — Black, subopaque, deeply and coarsely punctured, slightly 

 pubescent; face, clypeus. mandibles except tips, and a spot behind the 

 summit of the eyes, yellow; face silvery; clypeus large, flattened; an- 

 tennae ferruginous, yellow at base. Thorax : collar, tegulae, spot be- 

 neath the wings, scutellum and postscutellum, yellow ; metathorax 

 entirely black, roughly punctured, the triangular enclosed basal space 

 rugose, the incisures deeply impressed, continuing down the disk to 

 the insertion of the abdomen. Wings subhyaline. dusky at tips, slightly 

 iridescent; nervures and stigma blackish. Legs yellow; the coxae ex- 

 cept tips, a spot at base of the four anterior femora, the posterior femora 

 except tips, and tips of their tibiae, black, their tibiae sometimes dusky. 

 Abdomen coarsely punctured ; a broad band on the first segment, and 

 the posterior margins of the four followiug segments narrowly, yellow- 

 ish, the latter wider on each side; venter piceous. the second and third 



