1865.] 147 



I have not yet examined the neuration of JV. saginella and it may be 

 that it is a Trifurcula. An examination necessitates the destruction 

 of the minute specimen, and I wish to defer it until I have secured 

 others. It appears to me, however, that the eyecaps are too large to 

 permit saginella to remain amongst the Nepticulae. The larvae of 

 Trifurcula are entirely unknown, so that one can receive no assistance 

 in classification from a knowledge of their habits. 



BUCCULATRIX, Zeller. 

 Proc. Acad. Nat. Sci.. Jan. 1800, p. 13; June, 1860, p. 211. 

 Bucculatrix trifasciella. — Fore wings ochreous, with three silvery, equidis- 

 tant, costal streaks, the first near the base, the last at the beginning of the 

 apical cilia, with the spaces between (hem somewhat darker than the general 

 hue. On the middle of the dorsal margin is a spot of blackish-brown, with a 

 patch of dispersed scales of the same hue, exterior to it, limited externally by 

 a silvery dorsal streak. At the extreme tip is a small blackish-brown spot, 

 with an intereilial line of the same hue exterior to it. Cilia ochreous. Hind 

 wings fuscous : cilia the same. 



Antennse fuscous. Head ochreous; eye-caps somewhat silvery-white. 

 The cocoonet of this species was found on the leaf of a chestnut 

 tree early in July. The cocoon is elongated, ribbed externally and 

 dark gray. The imago appeared in the latter part of July. 



The leaves of chestnut is mined early in the season by a larva that 

 I have regarded as a Nepticula from the characters of the mine, but I 

 am now disposed to think that the mine is made by the larva of trifas- 

 ciella during its early life. This mine is noticed in the Proceedings 

 for November, 1861, p. 85, under Nepticula saginella. 



INCURVARIA, Haw. 

 Proc. Acad. Nat. Sci., Jan. 1S60, p. 5. 

 Fore and hind wings lanceolate, pointed. Fore wings, subcostal, vein with three 

 branches near the end of the disk ; apical branch furcate near its base ; discal ner- 

 vules, tiro. Hind wings, subcostal vein furcate; discal nervule, one. 



Incurvaria mediostriatella.— Fore wings, irridescent bluish-purple, with a 

 broad golden stripe from the base to the middle of the dorsal margin, leaving 

 a stripe of the general hue on the base of the dorsal margin, and with a rather 

 broad, obliquely placed costal streak, of the snne hue, at the beginning of the 

 apical cilia. The cilia are intermixed with golden scales. Hind wings red- 

 dish-purple, cilia fuscous. Antennse and head pale-yellowish. 

 Taken on wing, in damp woods, the latter part of July. 

 This species differs in some respects from both russatella and Aceri- 

 foliella and from the European typical species. The antenna) are 

 nearly if not quite as long as the fore wings, and perhaps in the future 

 it may be necessary to create a new group for its reception. I have 

 not deemed this advisable at present, as its oral parts are quite identical 

 with those of the genus. 

 Easton, Pennsylvania. 



