58 ENTOMOLOGICAL SOCIETY 



fact that the insect was already widely distributed, removed 

 the objection of spreading a pest, while within its range it 

 could be readily propagated and controlled out-doors. 



Mr. Ashmead said that the habits of insects, as in the spin 

 ning of spiders, could be used in classification if anatomical 

 study indicated structural differences corresponding with the 

 habits. 



Mr. Dodge exhibited some unpublished drawings by 

 Townend Glover, representing some of his best w r ork. 



JUNK 5TH, 1890. 



Twelve persons present. President Marx in the chair. 



Mr. Schwarz, on behalf the Publication Committee, stated 

 that No. 4 of Volume I of the Proceedings was mailed to the 

 correspondents of the Society on May i5th. He also called 

 attention to the following typographical errors : on page 217, 

 lines 5, 6 and 7 from top, substitute labrum for labium ; the 

 two notes on page 253 should be credited to Mr. Schwarz. 



Mr. Ashmead, under general notes, announced the discov 

 ery of a genus of Proctotrupidce new to the United States. The 

 insect, Iphitrachelus americanus, is interesting, as furnishing a 

 connecting form between the sub-families Ceraphronince and 

 Pla tygasterincs. 



Mr. Schwarz exhibited a specimen of Throscus pugnax, 

 which species is new to the fauna of the District. 



Prof. Riley presented the following communication : 



ON THE DIFFICULTY OF DEALING WITH 

 LACHNOSTERNA. 



BY PROF. C. V. RILKY. 



Mr. Smith's studies, supplementing as they did Dr. Horn's, 

 had resulted in the separation of the old termfusca into sev 

 eral species, which appeared more or less in succession, so 

 that for a considerable period one or another species would be 



