5 

 species. Yet, it has been the basis for all subsequent 



studies of the family. The name Ischyrus Lacordaire, as 



cited and used in Crotch' s revision, was accepted and used 



by all subsequent workers, with the exception of Alvarenga 



(1965, discussed below) . Crotch (1876) listed 44 species 

 of Ischyrus, 13 of which were new species. 



Ischyrus Lacordaire (sensu Crotch) has been referenced 

 in a multitude of papers and texts. Many of these are 

 simply species descriptions, regional studies, catalogs, 

 general entomological texts, or biological accounts. These 

 are too numerous to list here, but they can be found in the 

 species accounts of this revision. 



Some of the more important references are worth 

 noting. Gemminger and Harold's (1876) Catalogus 

 Coleopterorum was published shortly after Crotch' s revision 

 and contains the names as used by Crotch. Gorham (1887- 

 1899) , in the Biologia Centrali-Americana, gave accounts 

 for 22 species of Ischyrus that included 10 new species. 

 Kuhnt (1909, 1911) provided two catalogs, the first of 

 which contained a simple grouping of the species by various 

 color pattern characters . 



The most recent catalog of the genus Ischyrus 

 Lacordaire is Blackwelder' s (1945) Checklist of the 

 Coleopterous Insects of Mexico, Central America, the West 

 Indies, and South America, which lists 56 names. Boyle 



(1954, 1956) revised the family Erotylidae for America, 



