1865.] 123 



11. Cerceris flavocostalis, Cresson, 



Cerccris flavocostalis, Cresson, Proc. Ent. Soc. Phil, iv, p. 15.3. 

 Hah. — Cuba. Coll. Dr. John Gundlach. Two ( S 9 ) specimens. 

 As this and the four following species have already been described 

 on the pages of these " Proceedings," I deem it useless to repeat them 

 here, and therefore merely give reference. 



12. Cerceris triang^lata, Cresson. 



Cerceris triangulaia, Cresson, Proc. Ent. Soc. Phil, iv, p. 154. 

 Hah. — Cuba. Coll. Dr. John Gundlach. One % specimen ; 9 un- 

 known. 



13. Cerceris bilunata, Cresson. 



Cerceris bilunata, Cresson, Proc. Ent. Soc. Phil, iv, p. 155. 

 Hah. — Cuba. Coll. Ent. Soc. Philad. Two S specimens; 9 un- 

 known. 



14. Cerceris festiva, Cresson. 



Cerceris festiva, Cresson, Proc. Ent. Soc. Phil, iv, p. 156. 

 Hah. — Cuba. Coll. Dr. John Gundlach. One S specimen; 9 un- 

 known. 



15. Cerceris cubensis, n. sp. 



Cerceris zonata, Cresson, Proc. Ent. Soc. Phil, iv, p. 156, 

 Hah. — Cuba. Coll. Ent. Soc. Philad. One 9 , two % specimens. 

 As Mr. Smith had previously described a species from China under 

 the name of C zonalis^ and to prevent confusion, I take this oppor- 

 tunity of changing the name of the Cuban species. 



16. Cerceris nigrescens. Smith. 



Cerceris nigrescens, Smith, Brit. Mus. Cat. Hym. iv. p. 466, 9 . 

 Black; sides of face, clypeus, base of mandibles, dot behind the eyes, two 

 spots on collar, tegulae, postscutellum, spot on each side of metathorax, and 

 bands on abdomen, whitish; wings subhyaline; the four anterior tibise and 

 tarsi mostly pale yellowish. 



Female. — Deep black, not closely punctured, sparsely clothed with 



pale pubescence ; sides of the face, clypeus, base of mandibles, a dot 



behind the summit of the eyes, and sometimes a longitudinal line above 



the clypeus, white or pale yellowish-white ; middle lobe of the clypeus 



quadrate, elevated, convex above and concave beneath, the anterior 



margin subtruncate or slightly emarginated, and narrowly bordered 



with black ; the lateral lobes sometimes black, with a pale yellowish 



spot on each ; antennae black, the flagelluni more or less fulvo-testa- 



ceous beneath, especially at base, and in one specimen the scape has a 



white line in front. Thorax : a transverse spot on each side of the 



collar, a spot on the tegulae, a transverse line on the postscutellum, and 



a rounded spot on each side of the metathorax, whitish or yellowish- 



