228 GEORGE H. HORN, M. D. 



sides arcuate, margin feebly undulate, basal marginal line fine, disc convex and 

 deeply punctured, the spaces between the punctures convex; scutellum parallel- 

 sided. Elytra coarsely and deeply punctured, punctures irregularly placed, 

 except near the apex, where the intervals are well marked and convex. Under- 

 side of body comparatively smooth, a few fine, sparse punctures. Length .32 

 inch. : S mm. 



In the male the last ventral segment is feebly triangularly emar- 

 ginate. 



Of this I have seen but few specimens and all agree in color. 

 Occurs in Arizona, locality unknown. 



]fl. circuinciiicta n. sp. — Similar in form sculpture to the preceding, 

 differing only in color. The upperside is quite constant in color; the head is 

 orange-yellow, thorax in great part but with a broad blue band along the base. 

 The elytra are in great part blue, somewhat metallic, with a moderately wide 

 orange-yellow border along the lateral margin, reaching the apex and extending 

 along the suture to base. About one-third or less from base is a short transverse 

 band which crosses the suture, but does not reach the sides. The underside of 

 the body is very variable, sometimes it is entirely black (with the legs), or it 

 may be entirely orange-yellow, but intermediates occur. Length .32 inch. ; 8 mm. 



The sexual characters are as in the preceding species. 



This species is evidently very closely allied to crudfera, but INIar- 

 shall makes note of costre on the elytra which do not exist hei-e, and 

 of feeble teeth at the sides of thorax which are not seen in the present 

 species. No mention is made of the broad blue band at the base of 

 the thorax. Comparison will probably be necessary to settle the 

 question of the validity of the present species, if not also of the 

 preceding. 



Occurs in New Mexico and Arizona. 



It is not at this time possible to state whether the two forms are 

 distinct species or varieties of one. The latter opinion was held by 

 Dr. LeConte. All the specimens examined belong to either one or 

 other form and no intermediates have occurred. The occurrence 

 of the genus in our fauna is rather remarkable, the species being 

 confined to tropical America. 



€OL,ASPOIDES Lap. 



Head large, deeply inserted in the thorax. Eyes round, slightly 

 emarginate in front. Labrum broadly, clypeus triangularly emar- 

 ginate with acute angles. Prothorax beneath lobed behind the 

 eyes, the suture between the sternum and side pieces distinct. 

 Prosternum broad, flat, truncate at the two extremities. First joint 



