16 Psyche [February 



ELATERID.^ AND THROSCID^ OF THE STANFORD 

 UNIVERSITY EXPEDITION OF 1911 TO BRAZIL. 



By J. A. Hyslop, 

 Bureau of Entomology, Washington, D. C. 



Through the kindness of Dr. W. M. Mann, of the Bussey Insti- 

 tution, Harvard University, I have been accorded the great pleas- 

 ure of examining the Elateridce and the single Throscid collected on 

 the Stanford expedition of 1911 to Brazil. 



The collection is small and, contrary to most tropical collections, 

 contains excellent series of several species. It contains three new 

 species, two in the genus Monocrepidius and one which I tentatively 

 place in the genus Drasterius. The types of these species have 

 been deposited in the Museum of Comparative Zoology at Harvard 

 University. The Madeira River collections are remarkably inter- 

 esting as the fauna of this region is bound to throw light on the 

 relationship between the Andean and Amazonian basin faunae, 

 and thus to the relationship between the South and Central Ameri- 

 can faunas. Following is a list of the specimens collected. The 

 Elaterida; were all collected by W. M. Mann, Fred Baker and Har- 

 old Heath. 



THROSCID.^. 



Drapefes plagiahis (Boh.) Gerst. 



Abuna, Rio Madeira, Brazil. (Mann & Baker) 1 specimen 



Previously recorded from several parts of Central and South America, and 

 Boheman has recorded the species from San Francisco, Cal. 



ELATERID.E. 



Chalcolepidius candczci Dohrn. 

 forma fypica 



Abuna, Rio Madeira, Brazil (Mann & Baker) 2 9 specimens 



Madeira-Momore R. R. Co. Camp 39 2 9 specimens 



var. a. elytra as in forma typica, vestiture of pronotum and ventron green. 



Porto Velho, Rio Madeira, Brazil (Mann & Baker) 1 9 specimen 



var. b. vestiture of elytral striae ferruginous yellow, pronotum and ventral 



vestiture green. 



Madeira-Mamore R. R. Co. Camp 39, Rio Madeira, Brazil (Mann & Baker) 



7 9 specimens 



