4 

 nuda] . With his descriptions, Lacordaire became the author 



of these names. 



Subsequent authors, Guerin-Meneville (1844) and 

 Erichson (1847), used Lacordaire' s generic names and 

 described seven additional species of Ischyrus . 



Crotch (1873b) separated Lacordaire' s divisions into 

 distinct genera. The first division, containing species of 

 larger size, he named Megischyrus . The second division, 

 containing species of smaller size, he maintained as 

 Ischyrus, crediting Lacordaire as the describer and noting 

 the original use of the name by Chevrolat in Dejean (1836) . 

 At that time, it was common to give credit for a name to 

 the first describer of the taxon and not to the author of 

 that name. Following this trend, Crotch cited it as 

 Ischyrus Lacordaire. 



In 1873 Crotch received a grant to visit tropical 

 Australia and adjacent islands to collect natural history 

 specimens. Before his departure from Cambridge, U.K., he 

 placed his collection and manuscript in the care of E. W. 

 Janson. Unfortunately, Crotch became ill and died in 1874 

 while in the U.S.A. Edward W. Janson put Crotch's 

 manuscript into final form and published it. Numerous 

 notes within the revision are undoubtedly those of Janson. 

 Without Crotch's input, many of the species problems 

 alluded to within the text were left unresolved. This 

 "revision" is simply an annotated catalog of the species 

 previously described, with brief descriptions of the new 



