1865.] 145 



"I also bred a single imago of this same species, May 11th, from 

 the Cecidomyidous gall S. rhodoides Walsh, from galls kept through 

 the winter, and I found in the spring a denuded imago of what was 

 apparently the same species, dead and dry amongst a lot of Tenthredi- 

 nidous galls, S. desmodiodes Walsh MS., which is closely allied to S. 

 pomum, but occurs on the leaves of a very distinct species of willow. 

 Thus we have three different willow-galls inhabited by the same moth, 

 two of them made by saw-flies and one by a gall-gnat. 



" I have several times beaten oft' black-oak trees larvae apparently 

 very similar to this Batrarhedra, and with the same harlequin-like 

 markings, but whether the two are specifically identical, I cannot say." 



GRACILAEIA, Zell. 



Proc. Ac. Nat. Sci., Jan. I860, p. 6. Proc. Eut. Soc. Philad. Id. March, 1863, 

 Id. Dec. 1864, p. 505. 



I wish to redescribe and change the name of a species, whose history 

 1 have ascertained, and which I have recently bred. The first descrip- 

 tion was drawn from a rather worn specimen, but in the main, is cor- 

 rect. In order that the species heretofore described may be more 

 readily distinguished, I have tabulated them as follows : 



Legs with white tibite. 



F. w. costal half-yellow; dorsal, purple, with central black 



dot Desmodifoliella. 



Legs without white tibise. 



F. w. with a yellow, trigonal, costal mark. 

 Mark large, extended to tip of wing. 



F. w. reddish-violet ; mark distinct, single: base of 



inner margin yellow superbifrontella- 



F. w. dark purple ; mark indistinctly double ; base 



of inner margin dark purple Blandella. 



Mark small: f. w. purplish, with costal spots coroniella. 



F. w. with faseiaform, white markings. 



Markings broad; with exterior costal spots fulgidella. 



Markings narrow, without costal spots. 



With four equidistant streaks venustella. 



With one long costal and dorsal streak near the 



tip of wing strigifinitella. 



Gracilaria Desmodifoliella. — G. violacella, Proc. Ac. Nat. Sci., Jan. 1860, p. 7. — 

 The costal half of the fore wings, limited by the fold, is yellow: the dorsal half, 

 purple and the edge of the latter curves to the costa a little interior to the tip 

 of the wing. In the middle of the wing, on the edge of the purplish portion, is 

 a black dot, and the costa along the middle has a few dots of the same hue, but 

 not so conspicuous. Cilia purplish. Hind wings dark fuscous: cilia the same 



Head and antennae purplish. Face white. Labial palpi white, with the 

 ends of the middle and terminal joints touched with brown. Hinder pair of 

 legs yellowish; middle and anterior purplish-brown, with white tarsi. 



