TRANSACTIONS 



OF THE 



AMERICAN ENTOMOLOGICAL SOCIETY. 



VOIvUNlE XIX. 



studies in CHRYSOIVIELID^. 



BY GEO. H. HORN, M.D 



Various part? of the family Chrysomelidte have been carefully 

 studied, and the results have proven very useful to students of our 

 fauna. There are, however, several large series which have not been 

 studied collectively, and as the descriptions are widely scattered and 

 often insufficient, no satisfactory progress can he made hy those who 

 desire to become acquainted with the species. 



Finding that the descriptions were unsatisfactory, and in some 

 instances even misleailing, it occurred to me that the results obtained 

 in a re-arrangement of my material might prove of advantage to 

 others. I have therefore prepared the following sketches of those 

 genera which occupy a positioti intermediate between Donacia, which 

 has recently been ably treated by Mr. C. W. Leng, and the Cryj)to- 

 c;ephalini. Some of the genera have been omitted because thev 

 contain one or two species, and the accessible literature is sufficient 

 for their determination. Lema has been oniitted for a like reason, 

 althougli the species are fairly numerous in our fauna. 



S\ Xt:TA Esch. 

 With our existing literature it is absolutely impossible to deter- 

 mine the species scattered in collections. In a recent visit to Wash- 

 ington I found in the cabinet of Mr. Ulke an accumulation of nia- 



TK.WS. AM. ENT. SOC. XIX (1) .J.\NIARV. 189'J. 



