732 PROCEEDINGS OF THE ACADEMY OF [NoV. , 



polished. Space between posterior ocelli a little less than that 

 between them and nearest eye margin, cheeks with deep separate 

 punctures, not as strong as on top of head, the space between the 

 punctures rather opaque, minutely punctuied. The head and cheeks 

 with fine long hairs. First joint of the flagellum about one and a 

 half times as long as the second. Prouotum, dorsulum and scutel- 

 lum covered with large, distinct, separated punctures, the space sep- 

 arating them polished, postscutellum sparsely punctured, shining, 

 mesopleurse strongly and coarsely punctured. Enclosed space of 

 metanotum triangular with longitudinal sulcse medially, jiolished 

 transverse strise radiating to each side of anterior half of sulcus, the 

 rest of the metanotum deeply, almost confluently punctured and 

 shining, mesopleurse punctured, becoming impuuctate near the 

 suture ; from the base of the metapleurse rise two oblique raised 

 lines, joining to form an acute angle, the apex pointed forward; the 

 margins of the metapleurse make this a triangle, with the base in- 

 curved anteriorly. Entire thorax pilose like the head around the 

 ocelli, legs ciliate and more or less distinctly covered with a fine 

 appressed pubescence. Wings subhyaline, nervures at base reddish, 

 nervures and stigma brown, apical cell especially infuscated. 

 First segment of abdomen with a small polished triangular impres- 

 sion, abdomen dorsally uniformly sculptured, with deep separated 

 punctures, shining. Pygidial area practically oblong, strongly 

 margined, deeply punctured, shining, covered with sparse hairs. 

 The abdomen sericeous, all the dorsal segments distinctly pilose. 



Black ; base of mandibles, all of the face below the insertion of 

 antennse, a short distance above bordering on the eyes, front of 

 scape, interrupted band on 2)ronotum, tegulse, spot on mesopleurse, 

 two spcts on scutellum, postscutellum, apical third of femora, pos- 

 terior trochanters, tibise except apical spot on posterior ones, first 

 joint of tarsi, two spots on first dorsal segment almost united, a band 

 on first dorsal segment almost united, a band on all the other dorsal 

 segments (except apical) narrow medially and lateral spots on 

 ventral segments three, four and five, yellow. Flagellum beneath 

 orange, apical tarsal joints more or less testaceous. 



Related to C. imolita Cress. , from which it is distinguished by its 

 uniformly different sculpture. 



Type locality. La JoUa, Cal., August, 1901 (T. D. A. Cock- 

 erell). 



