HYMENOPTERA. 465 



104. CERCERIS GAYI. 



Cerceris Gayi, Spin. Gay's Chili, vi, 346. 2. 



Hab. Chili. ' 



J05. CERCERIS L^VIGATA. B.M. 



Female. Length 4 lines. Black and very delicately punc- 

 tured ; the face, base of the mandibles, and a line behind the 

 eyes, yellow; the flagellum fulvous beneath. Thorax: the col- 

 lar, tubercles, a spot beneath the wings, the scutellum, and an 

 oblong macula on each side of the post-scutellum, yellow ; the 

 anterior and intermediate tibiae, and the posterior pair at their 

 base, yellow ; the anterior tarsi yellow, with the apical joints 

 slightly ferruginous, the intermediate and posterior pair fusco- 

 ferrugiuous ; wings slightly coloured, with a fuscous cloud on 

 the anterior margin of the superior pair. Abdomen very deli- 

 cately and sparingly punctured and shining ; the first segment 

 with its apical margin yellow, a slight notch in the middle of the 

 band; the second, third and fourth segments with a yellow 

 fascia on their apical margins, very much attenuated in the 

 middle and widened at the sides. 



The male has a yellow band on the first and four following 

 segments. 



Hab. St. Domingo. 



106. CERCERIS CLYPEATA. B.M. 

 Cerceris clypeata, Dahlb. Hym. Europ. i. 221. 



Hab. North America (Wilmington, Delaware). (Coll. E. Dou- 

 ble day, Esq.) 



107. CERCERIS DESERTA. B.M. 



Cerceris deserta, Say, Narr. Exped. St. Peter's River, Append. 

 p. 76. 



Hab. N. America (Missouri ; Pennsylvania ; North Carolina). 



108. CERCERIS FUMIPENNIS. B.M. 

 Cerceris fumipennis, Say, Bost. Journ. i. 381. 1. 



Hab. N. America (Indiana). 



109. CERCERIS SEXTA. 



Cerceris sexta, Say, Bost. Journ. i. 382. 2. 

 Hab. N. America (Missouri). 



