CETONIIN^E 299 



generic subdivision renders possible a more accurate definition of 

 Euphoria than would otherwise be possible. Tropinota is common 

 to Europe and America, a species belonging unmistakably to the 

 genus being represented in my collection by a small series, said to 

 have been taken in Utah ; it was described by Say under the name 

 Cetonia vestita. Euphoriopsis (n. gen.) is so far only known from 

 South America and w r ill therefore not be further mentioned; the 

 type is well known in nearly all collections. 



The genus Chlorixanthe of Bates also belongs to this group of 

 genera, but is omitted above as I have no example of Euphoria 

 flavoviridis Thorns., forming its unique type; it belongs by meso- 

 sternal and clypeal structure, with the Euphoria section as above 

 defined, but differs from any other genus in several structural 

 features, among others the produced pronotal base near the scutel- 

 lum, the very approximate last two anterior tibial teeth and the 

 complete absence of raised elytral costulse; the short tarsi, with 

 closely compacted joints, are known, however, in several other 

 genera, as well as some species of true Euphoria. 



The European Oxythyrea Muls., greatly resembles some species 

 of Euphoria, and the clypeus is of a form frequently seen in that 

 genus, but the mesosternal process is different, being transversely 

 eroded, scabrous and pubescent, with its anterior face smooth and 

 convex; the anterior tibise are simply bidentate in both sexes and 

 the hind tarsi are unusually long and slender for this group. 



Euphoria Burm. 



In this genus the body is of moderate to small size, oblong-sub- 

 oval to elongate-subrhombiform in outline and generally sub- 

 glabrous, or with moderate pubescence, though this becomes 

 conspicuous in certain species such as basalis and pulchella. The 

 clypeus in the vast majority of species is broad, subquadrate, with 

 rounded angles, the apex but feebly reflexed and slightly sinuate 

 toward the middle, but in such forms as lesuetiri and spissitarsis, 

 the sides are rounded inwardly very gradually toward the tip, 

 which is rather approximately and sharply bilobed; in the pulchella 

 type the narrowed apex is somewhat similar though more briefly 

 and obtusely bilobed, and the surface is without elevation at the 

 side margins; in this pulchella and biguttata section, the clypeus is 



