148 [March 



lu locomotiou, the movements of the larva are those of a half looper. 



The larva is slender, rather moniliform, and somewhat flattened. The 

 body is tuberculated along the sides of the segments with round nodules. 

 The tei'minal prolegs project behind, like a little fork; the abdominal 

 prolegs are very short and slender, and four in number ; the pair on the 

 8th segment is rather laro-er than the others. 



It is beautifully colored. G-eneral hue, greenish, varied with dark red- 

 dish, with six dark reddish tubercules on each side. On each side the 

 5th segment is a pair of white tubercules, and two more pairs of the same 

 hue on the 8th and 9th, and a single white one on each side the 6th. 

 Head pale brownish, as well as the second segment. 



The pupa is naked, not enclosed in a cocoon, and is fixed by the tail at 

 the junction of cross-threads on the under surface of the leaf of the food- 

 plant, or other convenient neighboring objects. The pupa is not sus- 

 pended by the tail, as in butterflies, but is supported on the cross-threads 

 in a position more or less horizontal. The head-case of the pupa is nar- 

 rowly elongated and pointed, the process thus formed being three-sided. 

 It tapers regularly from the thorax to the abdominal extremity, but on the 

 back of the abdomen-case, which is somewhat flattened, there are three 

 ridges, one in the middle and one on each side. Color, blackish-brown ; 

 varied on the dorsum of the abdomen-case, with grayish along the edges 

 of the ridges, and with greenish between them. 



The first imago, taken in the pupa state on the 9th of October, appeared 

 on the 21st inst. The imago rests in the position of a Tischeria, that is, 

 with the fore legs applied to the breast, the front part of the body eleva- 

 ted, and the ends of the wings touching the surface on which the imago 

 may be standing. It is rather sluggish in its habits. The fall brood 

 doubtless hyberuates until the following spring. 



The affinities of this little insect are very interesting. In early life its 

 mode of mining indicates a relationship to the genus Nepticula. Its 

 subsequent habits recalls those of the genera Tischeria and Butalis. The 

 larva resembles the false loopei's of the Noctuina^ and its mode of trans- 

 formation closely approaches the pupation of the Rhopalocerous larvce, 

 the Pterophorina, and that of the genus Eldvhisfa. In the imago, the 

 folded fore legs, the position at. rest and the tufted front, show strong 

 afl&nities towards the genus Tischeria^ and its wing structure places it in 

 the lithocoUitiform group of the Tineina to which the former genus belongs. 



The collector, in searching for the larva; of this insect, should look 

 amongst the leaves that are most shaded, for these are preferred to those 

 exposed to the sun. After having found a plant inhabited by them, he 



