62 THE CANADIAN ENTOMOLOGIST. 



various, and seems to be a general feeder, commonly found on willow, 

 Cottonwood, dogwood and shadbush. Native. 



Chionaspis Americana, Jhn., 1896. This is found on elm at Amherst 

 and Springfield, Mass. Native. 



C/iiouaspis ortholobis, Comst., 1SS1. Dr. Dimmock has found this 

 at Springfield, Mass., on poplar and butternut. Native. 



Hemichionaspis aspidistra, Sign., 1869. This was found in destruc- 

 tive numbers on a fern (Davallia Moorei) in the Harvard botanical 

 greenhouse at Cambridge, Mass. Introduced. 



Ischnaspis longirostris, Sign., 1S82. Found by Mr. Samuel Henshaw 

 in a greenhouse at Boston, Mass., on Monstera, sp. Introduced. 



Parlatora Pergandei, var. came/lice, Comst., 1S83, was found by Mr. 

 J. W. Folsom at the Harvard botanical gardens, Cambridge, Mass., and 

 communicated to Mr. Cockerell. Introduced. 



BibliograpJiy. 



Cockerell. T. D. A., 1899, Journal New York Ent. Soc, Vol. 7, p. 258, 

 gives descriptive notes on Aspidiotus Forbesi, Johnson, found on Acer 

 pseudoplatanus at Reading, Mass. Coll. Kirkland, Feb. 24, 1898. 



Cockerell, T. D. A., 1899. Science N. S., Vol. 10, July, No. 238, p. 

 86-88. A reply is given to Mr. Marlatt's "Some sources of error in recent 

 work on Coccidce." 



Cockerell, T. D. A., 1900, Psyche, Vol 9, p. 44, gives a table for the 

 determination of all the known North American species of the genus 

 Kermes. (Since published three other species have been described.) 



Cooley, R. A., 1899. Special Bulletin Mass. Agr. Coll., Aug. 10, 

 1899. The Coccid Genus C/iiouaspis and Hemichionaspis, Chionaspis 

 corni, C. sa/icis-uigra, C. pinifolii, C. furfurus and C. Americana are 

 cited from Mass. 



Howard, L. O., 1889. Insect Life, Vol. 2, p. 34. A new imported 

 elm insect, Gossyparia ulmi, is described. Localities, food-plants are 

 given and cited as found at Cambridge, Mass., by Mr. J. G. Jack, in 1S97. 



Howard, L. O., 1892. Insect Life, Vol. 5, p. 51. Gossyparia ulmi is 

 again found at Maiden, Mass., by Mr. C H. Rowe. 



Howard, L. O., 1895. Insect Life, Vol. 7, p. 360. A new locality for 

 the juniper scale at Jamaica Plain, found by Mr. J. G. Jack. (The above 

 three quotations were overlooked in my first list.) 



King, G. B., 1899. Psyche, Vol. 8, p. 417. Pulvinaria Cockerelli, n. 

 sp., is described, found at Methuen and Andover, Mass, 



