100 Dr. A. S. Packard, Jr's Revision of the 



on the eyes, which are consequently slightly indented, deeply canalicu- 

 lated, a raised line going from the anterior ocellus direct to the bro;id, 

 smooth, sunken antennal groove. Surface more finely punctured than 

 usual; orbits and clypeal region golden; clypeus much longer than in 

 C. 6-maculatus, front edge being very convex and elongated ; lateral 

 lobes larger aud more broadly triangular than usual. Antennae 

 moderately long, scape slightly thickened in the middle, slightly an- 

 gulated, entirely yellow; flagellum clavate, joints long and slender, 

 thickened towards the tip, sutures very distinct; basal joint long, yel- 

 low at base, terminal half dark ferruginous, second joint twice as long 

 as the succeeding one, terminal joint long obcouic. 



Thorax short, thick globose, being very convex above ; an interrupted 

 yellow line on the prothorax ; tubercle yellow ; two submesial ridges 

 on the high and narrow, finely puuctured mesoscutum, the scutellum 

 unusually raised and convex, finely puuctured, polished and smooth, 

 black ; meta-scutelluin with a yellow stripe, roughened on the hinder 

 edge. Enclosure of propodeum distinctly lunate, raised perceptibly 

 above the surface; median furrow slightly dilated at base, slightly 

 raised lines diverge outwards from the furrow; a transverse raised hue 

 just behind the enclosure bounds above a large oblong space situated 

 on each side of the median furrow, while above the line is a trans- 

 versely wedge-shaped area widening outwards on the flanks. Neura- 

 tion much as in G Q-maculatus, there is a tendency however of the 

 outer submedian recurrent to be curved transversely instead of ob- 

 liquely aud bent inwards on the internal nervure ; teguhe and nervures 

 dark testaceous. Fore and middle femora black, yellow at tip above; 

 fore tibiae yellow shaded with brown ferruginous within; middle 

 tibiae entirely yellow, or shaded slightly within with dark ferruginous; 

 tarsi yellow throughout; hind femora black, tibia? yellow, tarsal joints 

 with glaucous tips. 



Abdomen broadly ovate, flattened above, much as in C. singular is, 

 beneath convex, shorter than the head aud thorax, very finely puuc- 

 tured, polished smoothly especially on the immaculate basal joint; nar- 

 row yellow fasciae on each of the succeeding rings, acutely pointed 

 inwards, extending inwards one-third of the entire breadth of the 

 upper side, the first pair being the most ovate, and the last pair are 

 most approximate. Tip very acute, compressed, deeply channelled, 

 elongated, the walls nearly meeting over the deep, narrow groove, thus 

 differing much from the triaugular groove in G. 6-macu/atus. Be- 

 neath entirely black; a slight hirsuties ou the flank of thorax and head. 



