Vol. xxvi] 



ENTOlfOLOGICAL NEWS. 



l6l 



of this area, the upper epidermis is left intact, but there is no 

 evidence that the larva is a miner at any stage. Farther out 

 in the same area, holes are made but often a fragment of the 

 upper epidermis is left. During this time the larva has been 

 increasing the extent of its wd>, which however remains 

 densest near its beginning, toward which it retreats when dis- 

 turbed. Toward the outer edges of the web the larva then 

 blocks out the area next to be consumed, thus : a narrow line 

 leaving the upper epidermis intact is cut through the lower 



?^_ 



/ r 



qndennis and leaf substance, fn cl o ain g therdyjr an irregnlar 

 oval or circular space (fr). In the portion of this spnce first 

 consumed, a small piece of upper epidennis is left, which 

 soon become s brownish and shriveled. In the rest of the 

 oval space the entire substance is eaten (c). The earliest if 

 such areas are usually small ; there may be three or four simi- 

 lar holes, eadi larger than the preceding (c). The web is ex- 

 tended outwardly in a thin sheet to reach each of tfiese spots 

 (r). At maturity the web is thickened near the angle and 

 drawn into an oval cocoon-like mass, within which the char- 

 acteristic short and broad flattened pupa is formed. The 

 imagos appeared July 11-18. 



There is a second generation late in the summer which pro- 

 duces imagos the following spring. 



