CHERMES OF MAINE CONIFERS. 289 



1898. Storment. Kept. Ent. III. 20; m--x.x.m. Follows Shimer's 

 error in considering winged pinicorticis to be pinifoUae. 



1901. W. D. Hunter. loiva Agric. Coll. Exp. Sta. Bull. 60. 

 The Aphididae of North America. Lists pinifoUae as a 

 synonym of pinicorticis. 



1909. Edith M. Patch. Annals of the Ent. Soc. of Am. Vol. 

 II. No. 2. Discussion of tracheation of wings of Chermes 

 pinifoUae. Pp. 107, iii, 116 and figs. 26-30. 



1909. Edith M. Patch. Me. Agric. Exp. Sta. Bui. No. 171. 

 Economic treatment giving main features of life history 

 of pinifoUae and stating that abieticolens is the gall 

 'generation of the same species. 



1909. Edith M. Patch. Psyche Dec. 1909, pp. 136-137. 



Chermes abieticolens. 



1869. A. S. Packard. Guide to the Study of Insects, p. 522. 

 Brief description with figures of this species recorded 

 as a species of Adelges occurring in abundance on the 

 spruce in Maine. Some good characters of gall also 

 given. 



1879. Thomas. Kept. Ent. III. 8: (77/ of Thomas) p. 156. 

 Species named provisionally as Chermes abieticolens and 

 statement made that it is certainly distinct from abietis. 

 Refers to Packard. 



1885. J. A. Lintner. 2nd Rep. St. Ent. of N. Y., p. 185. Refers 

 to Packard and Thomas. 



1887. Oestltmd. Aph. Minn. Species listed. 



1890. A. S. Packard. Fifth Rep. U. S. Ent. Comm. Adelges 

 abieticolens Thomas. Original account and illustration 

 copied. 



1897. Femald and Cooley. 34^/1 Report Mass. Agric. College, 

 pp. 89-100. abieticolens merged with abietis by error 

 on the basis that in response to "about five hundred 

 circular letters sent to dififerent persons in the U. S. 

 and Canada, only one species of Chermes was received." 

 Excellent account of abietis. 



