158 



TIIK CAXAIUAN EN'roMOLOGIST. 



petiole, or of the Ijase of the leaf, open on one side and so well described 

 by Osten Sacken. in the article above cited, that Dr. Hagen should have 

 seen that it could not apply to Mr. Fyles's description of his gall (p. 198, 

 vol. xiv) which applies very well to c-inainiiia^ though one-half inch is 



rather more than its average 

 length. That said description 

 does not appl\ to veiiusta. 

 there can be, Jiowever, no 

 doubt whatever. From a 

 single specimen of the insect 

 sent me by Mr. Fyles, my de- 

 t'ermination was confirmed. 

 P. c-mamiiia so closely re- 

 sembles another species (P. 

 c~iitciirbita M..S. mihi), how- 

 ever, that without the galls it 

 would be difficult, if not im- 

 possible, to separate them — a 

 not uncommon occurrence 

 among gall-making species. 

 It was because of this fact 

 that 1 expressed, in a letter to 

 Mr. Fyles (Feb. 24th), a 



Fig- 7- . . . 



r, 1 f 1 I. < (lualified opmion. urgmg hmi 



CiALL OF PaCHVI'SM.I.A L-MA-M.MA. (. leaf u Itll Liails f vom 1 i ' t) & 



under side; h. section of gall showing cup-like depression, and »-q sClld SUecimeUS of the 

 insect in cavity; c, pupa — /', c. enlarged, (.\fter Kiley.) ' * 



galls, which he failed to do. 

 His description of said gall can apply only to c-niaiiima, which is, more- 

 over, the most common of the many galls upon the leaf: and, like all the 

 other species on the leaf, is closed and not open as in c-vciiusta. The 

 accompanying figures, which I have had on hand for many years, will at 

 once show the difference between the galls ciit'uiis-vciimta and celt'uiis- 

 inainma. 



In reference to the genitive of Celtis. the best liotanical works cite the 

 term as of Greek origin — Grccca obsaira, as I-innaius puts it. Hence the 

 irenitive ccltidos which. Latini/.ed, becomes a'lt'uiis. See also Celtidece 

 Endlicher : celtidifoliiim DeCandolle. I am not surprised at Mr. Fyles's 

 question, however, as some fifteen years since I was inclined to use the 

 genitive celtis. which would, also, be justifiable. Prof G. L. Goodale has 



