'270 Journal New York Entomological Society. [Vol. xxvu. 



seen. Both are females and both were taken at Bogota on Baccharis 

 bogotensis, one in 1915 and one in 1917. This is the largest Centro- 

 gonia which has yet been described. It is near C. ciliata Fairmaire, 

 but is a much heavier bodied species than ciliata and is quite distinct 

 in sculpturing and maculations. I have received a good series of 

 fifty or more specimens of C. ciliata from Revdo. Apolinar Maria 

 from the same locality which were also taken on Baccharis bogotensis. 



Centrogonia pinguicornis new species. 



Light brown mottled with yellow, coarsely punctate, sparingly pubescent ; 

 suprahumeral horns short, thick and blunt ; metapidium much depressed be- 

 tween the horns; head showing a large black spot mesad of each eye; dorsum 

 highest just behind suprahumerals ; posterior process slender, acute, extending 

 just beyond tip of abdomen ; tegmina hyaline ; thorax, legs and abdomen light 

 brown mottled with luteus. 



Head wider than long, roughly sculptured, impunctate, light yellow with a 

 large black or very dark brown spot just inside each lateral margin separated 

 from the eye by a yellow line, a smaller spot meso-ventrad of the preceding, a 

 brown line extending vertically on each side of the median line through the 

 ocelli and along the lateral margins of the clypeus ; base of head sinuate; eyes 

 large, prominent, gray mottled with brown, well set off from lateral margin of 

 head ; ocelli prominent, brown, about equidistant from each other and from the 

 eyes and situated on a line drawn through centers of eyes ; clypeus much longer 

 than wide, produced for more than half its length below lateral margins of 

 genae, convex, densely pilose, tip produced and strongly marked with black. 



Pronotum light brown with yellow markings on the anterior and posterior 

 bases of the suprahumeral horns, on the lateral margins of the semicircular 

 impressions and across the base of the posterior process ; suprahumeral horns 

 short, very thick, stout, sub-triquerate, blunt, no longer than their width at 

 base, coarsely punctate, somewhat brown above, extending outward and up- 

 ward with tips slightly recurved ; metopidium perpendicular, convex below 

 bases of horns, much flattened between the horns ; dorsum a little upraised im- 

 mediately behind horns then straight to tip of posterior process ; median carina 

 percurrent; posterior process narrow, acute, very slightly deflexed at tip, ex- 

 tending just beyond apex of abdomen but not reaching bases of terminal cells 

 of tegmina. 



Tegmina hyaline, base slightly punctate, tips somewhat wrinkled, terminal 

 cells of coastal border often subdivided to form six or seven terminal cells, 

 two discoidal. 



Thorax light brown spotted with yellow ; abdomen luteus with a small 

 brown spot on the lateral margin of each segment ; legs light brown spotted 

 with luteus, tips of tibiae darker, densely pilose. 



Length, 6.6 mm.; width between tips of suprahumerals, 2.8 mm. 



