THE CANADIAN ENTOMOLOGIST. 



423 



Cremastobombycia, or if from an ancestral Cremastobombycia, resembling 

 those now in existence, the connecting links have to a greater or less 

 extent been lost. The second possibility is that the fiat and the 

 cylindrical-larval groups have descended in diverging directions from a 

 common ancestor'; an offshoot of Cremastobombycia. These two paths of 

 evolution may be illustrated diagrammatically thus (Fig. 13): 



u/rt^fvy/oc-16^ 



(ftrt^^AxrWUu 



$pd&) 'T— (pj^tX, «- 



\kAOAtjOj 



II 



^hAtLUXXAAJ%(LQ^YvtJu£oX' 



^tmwrumj COrUlLitcV 





Fig. 13. — Phylogeay of the Lithocolletid Group. 



Either of these two views indicates a close relationship between the 

 two groups ; if the second should prove the correct one, Lithocolletis 

 (typical) and Cameraria should certainly not be separated generically. 

 At the present stage of the investigation the evidence connecting the flat- 

 larval group with Cremastobombycia is somewhat more complete than that 

 connecting Lithocolletis (typical) with either. 



NOTE ON SPHINX PERELEGANS, HY. EDWARDS, IN 

 BRITISH COLUMBIA. 



BY REV. G. W. TAYLOR AND ARTHUR GIBSON, 



For some years the senior author has collected at Wellington, British 

 Columbia, odd specimens of a handsome, large, blackish sphinx, which 

 until a recent visit to Ottawa he had not personally studied. On this 



