THE CANADIAN ENTOMOLOGIST. 155 



jured by insects as in the bamboo box from China. I beheve that the 

 boring was done by the species aUied to Sinoxylo?i, because only very few- 

 holes were made, and because a related species, B. capucinus, has bored 

 lead. 



As it is of general interest to know the history and the habits of the 

 insects belonging to this obnoxious and dangerous group, I have tried to 

 make out the species of which the previous stages have been described. 

 Therefore I have given a catalogue of the 32 species represented to-day 

 in the biological collection of the Museum in Cambridge. 



Besides these, Harold's Catalogue mentions 28 species more, of which 

 the previous stages are described ; Rupertsberger mentions 29 species 

 more, and Riley 2 from the U. S. 



The species of Ptinidae and allied forms represented in the earlier 

 stages in the biological collection in the Museum, are in alcohol, and 

 besides, dry inflated larvae ; also parts of wood or other things in which 

 they have made borings. For want of time and space, a very large lot of 

 later additions have not been classified and arranged. There may be 

 among them more species from North America. 



PTINIDiE. 



Hedobia imperialis L. Europe. Im., larv., nymph, and bark with the 



craddle. 

 Ptinus fur L. Europe. Im., larv. 



rtifipes i". Eur. Im., larv., wood bored. 

 Anobium tessellatum F. Eur. Im., larv. 



perti?iax L. Eur. Im , larv. Betiila alba injured. 



striatum Oliv. Eur. Im., larv., nymph., wood of Aesculus 



Hippocastani injured. 

 emarghiatum Duft. Eur. Im., larv., nymph, wood of Finus 



picea injured. 

 nigrinuvi Er. Eur. Im. larv., wood of Plnus sylvestris injured. 

 paniceutn L. Eur. Im., larv., boring in candy; the same 

 species from U. S., boring in the pith, larv.; also destroying 

 insects — Mr. Austin. 

 Eniobius abietis F. Eur. Im., larv., boring in cones oi Finns picea. 



mollis L. Eur. Im., larv. ; the same from U. S,, boring in 

 pine sap-wood ; boring in corks. 

 Ftilinus costaius Gyll. Eur. Im., larv., boring in Salix alba. 



