72 THE CANADIAN ENTOMOLOGIST. 



Mr. Behrens, Sauzalito, No. 227. 



Errata. — Page 27, for " illaudibilis •" read " illaitdabiiis." Page 28,. 

 dele " atlantica, subjuncta" and insert " mactata" 



PARASITIC DIPTERA. 



By the kindness of Baron Osten-Sacken, of Cambridge, Mass., we 

 have been favored with the following notes : 



Gaurax anchora Loew., Centur., vii, 94. 



Numerous specimens of this insect have been bred by Baron Osten- 

 Sacken from a cocoon of S. cecropia. 



Blepharopeza adusta Loew., Cent., x, 67. 



Examples of this species have been reared from the caterpillars of 

 Spilosoma acrea by Mr. H. Edwards. 



LOCAL LISTS OF BUTTERFLIES. 



All our American readers who are collecting Diurnal Lepidoptera, in- 

 whatever part of the country they may reside, would confer a great favor 

 on us by sending lists of the names of such species as are found in their 

 neighborhoods, stating at the same time whether the species are abundant or 

 otherwise. If a general response can be obtained to this request, we 

 shall be able to present our readers with a tabulated list, showing more 

 correctly and completely than has heretofore been known, the distribution 

 of the various species of butterflies throughout America. Such infor- 

 mation is very desirable, and would save those at present engaged in the 

 study of this interesting family, as well as any who may hereafter enter on 

 it, an immense amount of correspondence. Mr. W. H. Edwards, of 

 Coalburgh, W. Va., has kindly undertaken to tabulate all the lists that 

 may be sent in, and when completed, publish the material in our pages. 

 We hope our friends will all aid in this desirable undertaking, and each 

 contribute his mite, sending the lists as complete as possible. Lists will, 

 be acknowledged in the Entomologist in the order in which they are 

 received. 



