130 ENTOMOLOGICAL NEWS. [May, '02 



Castanea Amcricmia, with very large blotch mines, the mines 

 often extended entirely across the end of a leaf, or on one side 

 of the mid-rib for nearly half the length of the leaf. By hold- 

 ing the leaf up to the light a broad, flattened apodous-like 

 larva could be seen eating industriously, and when disturbed 

 wriggling quite vigorously. When feeding the larva sweeps 

 circles of 10 mm. or more radius, the anal end acting as a pivot, 

 and the outline of the mine is a series of these semi-circles. 

 The frass is deposited in fine curved lines. 



Leaf-mining lepidopterous larvae are unusual so early in the 

 spring. For this reason, and also that I felt reasonably sure 

 that I had a leaf-mining Coleopter, I paid rather scant attention 

 to these larx^se other than to place the leaves in a jelly glass 

 with a little moss and earth at the bottom and a gauze cover 

 over the top. I noticed that within a day or two all the larvae 

 came out of the mines and had burrowed beneath the earth. 

 They were bare and not enclosed in a case made out of a small 

 part of the leaf. 



The matter was allowed to rest here for several months. In 

 October, when field work required less attention, I had time to 

 learn something of the contents of several new accessions to 

 my library, which included Stainton's "Natural History of the 

 Tineina" and the first two volumes of J. W. Tutts' elaborate 

 work entitled "British Lepidoptera. " On Plate 3, Vol. XIII, 

 of Stainton's work are beautifully drawn figures of three Euro- 

 pean species, showing moth, larva and mine, and as soon as I 

 saw them I felt sure the identification of my chestnut miner 

 was at hand. I got down my jelly glass and found a dozen or 

 more small oval cocoons of rather tough texture and covered 

 with particles of earth ; up<jn opening some of these cocoons I 

 found some of the larvae had dried up and others had pupated 

 and then dried up. Only one or two were alive ; these I care- 

 fully put away, hoping to get the moth later, ])ut at this writ- 

 ing all are dead, so it will be impossible to prove the species 

 this year. 



During the past few months I have Ixjen making a critical 

 study of the pupx' of a numlxjr of Tortricidae bred last year and 

 sought the aid of Dr. Packard's first i)art of his "Monograph 



