CERCEEIS. Ill 



by less than twice the length of the second. Clypeus convex, projecting gradually to 

 the apex, which also becomes narrowed ; the apex almost truncate. Antennal keel 

 gradually brought to a point, almost reaching to the base of the clypeus. Head coarsely 

 rugosely punctured, covered, particularly on the top, with long fuscous hair ; black, 

 the cheeks and clypeus yellow. Thorax rugosely punctured, the base of the meso- 

 notum and the scutellum rugosely striolate ; the propleurae with some stout striations ; 

 basal area of the median segment well defined, closely longitudinally striated, the 

 centre furrowed. The thorax covered with long fuscous hairs. A line on the pro- 

 notum, the tegulse, and metanotum yellow. Petiole convex, a little longer than wide, 

 bearing longish fuscous hair and scattered punctures ; a somewhat triangular fovea at 

 the apex. Abdominal segments with scattered punctures in the middle ; the base and 

 apex aciculate. Pygidial area narrowed at the base, the apex rounded, irregularly 

 wrinkled ; hypopygium with the incision wide, but somewhat longer than broad ; 

 lateral bristles golden-fulvous ; the sides of the apical segment coarsely punctured, the 

 apex aciculate ; ventral surface densely covered with fuscous pubescence ; two marks 

 on the petiole and a broad band on segments 2-4 yellow. The knees, the four 

 anterior tibiae and tarsi, the hind tibiae (except at the apex), and the base of the hind 

 tarsi yellow. First recurrent nervure received a little beyond the centre of the cellule. 

 The male has the first joint of the antennae shorter than the third, which is not 

 much longer than the fourth ; the clypeus broadly convex, but not strongly so, the 

 apex broad, almost truncate ; the pygidial area with large punctures, shining, covered 

 with longish, soft, white hair. 



6. Cerceris maximiliani. (Tab. VII. figg. 6, $ ; 6 #, clypeus ; 6 b, pygidium ; 

 6 c, hypopygium.) 

 Cerceris maximiliani, Saussure, Reise d. Novara, Hymen, p. 94 (?) \ 



Hab. Mexico, Chilpancingo and Venta de Zopilote in Guerrero, Orizaba, Atoyac in 

 Vera Cruz (H. H. Smith), Eastern Cordillera 1 , Temax in North Yucatan (Gaumer) ; 

 Guatemala, Senahu in Vera Paz (Champion) ; Panama, Bugaba (Champion). 



We give a fresh description from the specimens before us : — 



Clypei media pars convexa, margine apicali fere dentato ; oculorum margines intend fere paralleli ; area 

 cordiformis aciculata ; nigra, abdominis segmentis 3°-6 m fulvo marginatis ; alis flavo-hyalinis, antice flavo- 

 fumato. $ • 



Long. 12 millim. 



Eyes slightly diverging beneath. Ocelli separated from the eyes by almost the 

 length of the second and third antennal joints united ; the hind pair separated from 

 each other by the length of the fourth joint. Antennal keel large, nearly as long as 

 the basal joint of the antennae, moderately acute. Clypeus moderately convex, hardly 

 projecting in the middle ; the apex with a shallow broad curve, scarcely forming an 



