84 



PSYCHE. 



[July, igoo. 



ment of Entomology at Washington have 

 the following species bred from Kermes : 

 Tclenotniis sp., Cosmocofna elegans, Blas- 

 tohasis coccivorella, and also a Lepidop- 

 terous inquiline Euclemensia bassettella. 

 Species bred by me and determined by 

 Dr. Howard and Mr. Ashmead are from 

 K. gallifonnis; Encyrtus sp., Cerchysius 

 9 , two species of Epiencyrtus and a 

 genus unknown to Mr. Ashmead. Eu- 

 clemensia bassettella, is quite frequently 

 found. From K. pubescens, Microterys 

 cincticornis has been bred. The size of 

 Kermes in many of the species is so 



variable that an approximate measure- 

 ment only can be given, and all are found 

 to infest different species of oaks in 

 North America. The only species thus 

 far doing any material damage to the 

 trees are K. galliformis, K. psttiti and 

 K. pubescens, which I really believe to 

 be the most injurious species we have. 

 The following list gives all of our 

 United States species of Kermes, 

 together with the date of their dis- 

 covery and publication. * indicates 

 Massachusetts species. 



Published in 

 American Naturalist, vol. 15, iSSi. P. 482 

 Entomologist, 1S95, p. loi 

 Entomological News, vol. 8, 1S97. P. 94 

 Can. Entomologist, vol. 30, i8g8. P. 172 



Entomological News, vol. 9, 1898. P. 185 



" " '■ ' 189 



Ann. & Mag. of Nat. Hist., ser. 7, vol. 2, 



Oct., 1898. P. 330. 

 Ann, & Mag. o£ Nat. Hist., ser. 7, vol. 2, 



Oct., 1S98. P. 330. 

 Can. Entomologist, vol. 31, iSgg. P. 5 

 11 .1 .1 „ ^ 



" " " ** " " 10 



Psyche, vol. g, igoo. P. 22 

 Herein described 



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