

1873.] 119 [Scudder. 



Mr. Scudder further observed that Mr. Edwards had not drawn 

 attention to the fact that Walshii and Telamonides belonged to the 

 same brood; the former consists of earlier, the latter of later individ- 

 uals from wintering chrysalids ; the second brood of the species, (the 

 first from short lived chrysalids) is Marcellus, and made up of the 

 mingled progeny of both Walshii and Telamonides. 



Mr. E. P. Austin said that during an excursion of the 

 Section to Cliftondale, Mass., he had taken about one hundred 

 and ten species of Coleoptera, including some rare species, 

 which have been abundant during the past season. 



Mr. Austin also exhibited a collection of Coleoptera taken 

 on Mt. Washington from the 19th to the 29th of last July, 

 including about 225 species, quite a number of which are 



Mr. Scudder stated that' he had found the larva of 

 CEneis semiclea feeding on Carex by night, as Mr. Sanborn 

 had also clone in the day time. His former supposition that 

 this larva feeds on lichens 1 must be abandoned. He had 

 attempted to obtain the. eggs of this species by confining 

 gravid females with their food plant, but succeeded in obtain- 

 ing only one unfertile egg ; he had also once succeeded in 

 securing a single egg of the European CEneis Aello from a 

 female shut in a pill box, and found that the insect hiber- 

 nated immediately after leaving the egg. 



November 5, 1873. 

 The President in the chair. Sixty-one persons present. 



The following papers were read : — 



Structure and Action of Striated Muscular Fibre. 

 By Thomas Dwight, Jr., M.D. 



It would be alike tedious and superfluous to attempt to recapitulate 

 the various views held on this subject, not only because this has been 



1 Boston Jo.irn. Nat. Hist., vn, 625. 



