TEXAN HYMENOPTERA. 229 



Cerceris clypeata. 



Cerceris clypeata, Dahlb. Hym. Eur. i., p. 221. 

 One % specimen. (Belfrage.) 



Cerceris occipitomaculata. 



Cerceris occipitomaculata, Pack. Proc. Ent. Soc. Phil, vi., p. 62. 



One 9 specimen. (Belfrage.) 



Cerceris gnara, n. sp. 



% . — Black, clothed with a rather dense pale sericeous pubescence; face, 

 orbits each side of antennae, clypeus, mandibles except tips, scape beneath, 

 two spots on prothorax above, postscutellum, and dot on tegulse anteriorly, 

 lemon-yellow ; face coarsely punctured, apex of clypeus with three prominent 

 obtuse, black teeth ; flagellum fulvous beneath, apical joint as long as the pre- 

 ceding, curved and truncate at tip; basal space of metathorax smooth and 

 polished; wings subhyaline, apical margin fuliginous; legs rufo-ferruginous, 

 coxse, spot on posterior femora beneath and apex of their flat tibiae, black ; tro- 

 chanters, intermediate tibia and tarsi, apex of four anterior femora at tip be- 

 neath, base of posterior femora and their tibise except apex, lemon-yellow ; 

 posterior tarsi dusky; abdomen densely punctured; a small spot on each side 

 of first segment, and a broad slightly interrupted band on second, and a very 

 narrow apical band on segments 3 — 6, dilated laterally, lemon-yellow; apex 

 black, shining, immaculate. Length .50 inch. 



Two specimens from Dallas and Comal Counties. Resembles mimica 

 % . and may be distinguished from it by the differently colored legs. 



Cerceris firma, n. sp. 



9- — Black, clothed with a rather dense pale sericeous pubescence; head 

 large, densely and coarsely punctured, ferruginous, sides of the face, and three 

 spots on clypeus, pale yellow; front, middle of face, remainder of clypeus, 

 lower half of cheeks and tips of mandibles, black; clypeus with a prominent 

 process at base, on which is placed the middle yellow spot, the process broad 

 at base and obtusely pointed at apex; interantennal carina sharply defined ; 

 antennae black, the three basal joints ferruginous; thorax with dense coarse 

 punctures, sparse on disk of mesothorax; two spots on prothorax above, line 

 on postscutellum, spot on each side of metathorax and a dot on tegulae an- 

 teriorly, yellow; sides of metathorax and sometimes the pro- and mesothorax 

 and seutellum more or less, ferruginous; basal space of metathorax smooth 

 and polished, with a few lateral punctures; wings subhyaline, apical margin 

 rather broadly fuliginous, coxse black, posterior tarsi dusky; abdomen black; 

 first segment ferruginous with a narrow moie or less indented band at apex ; 

 second segment with a broad yellow band, emarginate on the anterior middle 

 with ferruginous; three following segments with a narrow apical yellow band, 

 suddenly dilated laterally and generally interrupted on fifth segment; apical 

 segment densely pubescent; venter immaculate, the base more or less ferru- 

 ginous. Length .55 inch. 



Four specimens. (Belfrage; Boll.) A very distinct and well 

 marked species, easily recognized by the prominent uuituberculate 

 elypcal process. 



