m THE EARLY STAGES OF THREE ^mi AilEPJCAN COLEOPTERA. 



By H, F. V/ICKHAAI. 



So little is known regarding the biology of our native bee- 

 tles that the writer considers no apology necessary in offering 

 the present contribution. The three species belong to as 

 many different families, and two of them to genera of which 

 the metamorphoses have not been made known in our litera- 

 ture — Efirpocns and EUychnia. 



Attempting to avoid that insufficienc}' of detail so noticeable 

 in many of the earlier descriptions, the writer hopes to be 

 pardoned if he has gone to the other extreme, and trusts that 

 the skeiches of dissections and the comparisons with allied 

 forms will not be useless. He also wishes to express his in- 

 debtedness for references, to ]Mr. Wm. Beutenmueller's "Bib- 

 liographical Catalogue of the Described Transformations of 

 North American Coleoptera," an invaluable aid to students 

 of the life history of insects of this order. 



DlC.^LUS SPLEXDIDUS, Say. 



Color of larva dark blue-green, subopaque, space between 

 ends of scutes and the lateral margins of abdominal segments 

 brownish yellow; head reddish 3^ellow^; ventral surface more 

 blue than the dorsal, the parts of the integument not covered 

 by scutes, brownish-yellow. 



Form rather elongate, fusiform, narrower anteriorly. 



Head not deeply inserted in thorax, a little concave above, 

 beneath convex, slightly flattened, somewhat narrowed from 

 the point of the insertion of the antennae to the base. The 



