XXxii, '21 ENTOMOLOGICAL NEWS 17 



T\f>e ( 9 ) and eleven paratypes reared from larvae mining 

 seeds of Aster shortii, eleven reared from Aster cordifolins, 

 twenty from Solidago cacsia and Solidago latifolia, many speci- 

 mens captured on flowers of Aster in September, all at Cincin- 

 nati, Ohio ; a series taken on golden rod flowers. Ilalsam. Xorth 

 Carolina. August 15-25. Type and paratypes in writer's col- 

 lection, paratypes in the collection of the Academy of Natural 

 Sciences of Philadelphia and in the U. S. National Museum. 



The larvae mine at first within the seeds, later (in October 

 and early November) constructing buff silken cases, marked 

 with darker longitudinal streaks and encircled with backwardly 

 projecting pappus attached near the mouth ; occasionally entire 

 dry disk flowers are attached to the case in the same manner; 

 numerous small fragments of flowers are attached near apex. 

 Case short cylindrical, bulging somewhat behind mouth, which 

 forms an acute angle with the axis ; apex prominently three- 

 valved, the angles sharp and at base projecting somewhat be- 

 yond the general outline of the case. 



The following observations on the method of attaching the 

 pappus and constructing the case af'er the larva leaves Un- 

 seed may be of interest. The pappus is cut off at equal dis- 

 tances from the seed and passed forward between the logs. 

 The pieces are fastened together around the body of the cater- 

 pillar (i. e., attached by the larva working inside") by a few 

 strands of silk. At first they project irregularly, some even 

 pointing forward. When sufficient pieces have been put in 

 position the case itself is spun within the loosely fastened- 

 together pappus and the deflexecl mouth is added. At first the 

 case merely converges toward the apex ; later the apex is made 

 distinctly three-valved. 



The largest specimens are those reared on Aster shortii. tin- 

 smallest on Solidago caesia; apparently the difference in size is 

 due directly to difference in food supply resultant upon tin- 

 small size of the seeds of the latter plant. 



In general, this species may be distinguished by the pale 

 costal half of the wing in contract with the darker dorsal half. 

 Pale brownish ocherous almost undusted specimens, which 

 sometimes occur, are almost indistinguishable from C. gran- 



