2l>0 THE CANADIAN ENTOMOLOGIST. 



Chionaspis, Sign. 



Chionaspis pinifolice, Fitch, 1855. (Native.) A common species in 

 North America. Recorded from Toronto, Ottawa, etc., Ontario, and 

 found in British Columbia, in 1897, on Abies grandis. In Quebec 

 Province found very abundantly on Picea alba, at Metis, Que., by Dr. 

 B. J. Harrington (Fletcher). 



Bib. — Spec. Bull. Mass. Agr. Coll., August 10, 1899, p. 22. 



Chionaspis Lintneri, Comst., 1883. (Native.) Apparently quite 

 common on wild alder (Alnus incana) and birch ( Betula papyri/era), at 

 St. John, New Brunswick ; Charlottetown, and many other places in 

 Prince Edward Island ; Chateauguay, P. Q., and Ottawa, Ont. 



Bib. — Can. Ent., Vol. 27, 1895, p. 33. 

 " " 30, 1898, p. 85. 

 Spec. Bull. Mass. Agr. Coll., 1899, p. 28. 



Chionaspis furfurus, Fitch, 1856. (Native.) The scurfy bark-louse. 

 This is another common scale found on apple. It is recorded from 

 Leamington, Ontario ; Nova Scotia, New Brunswick, and Prince Edward 

 Island. Mr. Dearness sent it tome on hawthorn in 1898. 



Bib. — 28 Ann. Rpt. Ent. Soc. Ont., 1897, p. 16. 



29 " " " 1898, p. 86. 



30 " " " 1899, p. 68. 

 Can. Ent., Vol. 26, 1894, p. 354. 



Spec. Bull. Mass. Agr. Coll., 1899, p. 28. 



Psyche, Vol. 8, 1899, p. 336. 

 Chionaspis salicis-nigra, Walsh, 1867. (Native.) Recorded from 

 Leamington, Kingsville and Kingston, Ontario. 



Bib. — Spec. Bull. Mass. Agr. Coll., 1899, p. 20. 



Hemichionaspis, Ckll. 

 Hemichionaspis aspidistra, Sign., 1869. (Introduced.) Originally 

 described as a Chionaspis. I received this from Dr. Fletcher, on a fern 

 ( Pteris serrulata) found in a greenhouse at Ottawa, Canada, December 

 16, 1900. It is found in California, Washington, D. C, and Mass. 



Mytilaspis, Sign. 

 Mytilaspis ulmi, L., 1758. (Introduced.) The oyster-shell bark-louse 

 of the apple, heretofore recorded as Mytilaspis pomorum, Bouche'. It is 

 well established throughout Canada, and recorded from Ottawa on red 

 and black currant, lilac, Spiraea, ash, dogwood, mountain ash, and 

 hawthorn. I have it from Mr. John Dearness, found at London, Ontario, 

 1900, on apple. Aspidiotus perniciosus, Comst., are on the same twigs. 

 Bib. — Can. Ent., Vol. 26, 1894, p. 354. 

 Exp. Farm Rpt., 1898, p. 205. 



Evid. of Dr. Fletcher before the Com. of House of Comm., 

 1898, p. 18 ; ibid, 1900, p. 12. 



28 Ann. Rept. Ent. Soc. Ont., 1897, p. 16. 



29 " '• " " 1898, p. 88. 



30 " " " " 1899, p. 12 and 67. 



