OF WASHINGTON. 193 



pine trees in this country, and he was of the opinion that when 

 the subject had been thoroughly investigated this number would 

 be nearly doubled. 



Mr. Schwarz stated that the pine-feeding Scolytidae would in 

 clude about two-thirds of the entire number of species, and that 

 in North America this included fully one hundred and fifty spe 

 cies. Whole genera of Scol ytid sometimes feed exclusively 

 upon pines. 



Asked by Mr. Schwarz if he had recently seen in West Vir 

 ginia specimens of the introduced Clerus formicarius* Mr. 

 Hopkins replied that he had not, but specimens had been seen by 

 lumbermen, to whom figures and description of the Clerid had 

 been communicated. 



Mr. Hopkins also referred to a Dipteron which he had bred 

 from larvae found in the body of an adult bee that nests in clay 

 banks. From a pencil sketch the parasite was identified by 

 Messrs. Coquillett and Ashmead as belonging to the Conopidas. 

 From some of the Conopid larvae Mr. Hopkins had bred a large 

 number of specimens of a species of Chalcid fly. 



Under the heading of short notes and exhibition of speci 

 mens, Mr. Hubbard exhibited pupae and larval skins of Amphi- 

 coma vulpina found by Mr. Schwarz and himself near Asheville, 

 N. C. The larva differs from the related forms quite as much 

 as is known to be the case with the adults. The species had 

 heretofore been recorded only from Massachusetts and other 

 northern localities. 



Mr. Hubbard also exhibited an apparatus for use in the ex 

 amination of alcoholic specimens. This was formerly used by 

 Dr. Hagen, and consists of two watch-cases placed together in 

 such a manner that their concave surfaces are next each other, 

 the two glasses thus forming a single cell, being held in place 

 by a spring clamp. The glasses act as a parabolic reflector, 

 thus aiding in the examination of the objects placed between 

 them. These, in the present case, consisted of several larvae of 

 Hemipeplus marginipennis, found by Mr. Hubbard between 

 the ribs of unfolded palmetto leaves in Florida. Mr. Hubbard 

 stated that there were various points of interest connected with 



