I4 2 ENTOMOLOGICAL NEWS. [March, '13 



fex Linn. (Col.), all males, showing great variation in size. 

 Some of the smaller ones had the thoracic horn entirely ab- 

 sent. 



Mr. Daecke showed a root o "Clot bur" (Xanthium stru- 

 marium Linn, from which he had bred the weevil Boris inter- 

 stitialis Say (as determined by Col. Casey). These specimens 

 had emerged in the fall and then crawled back in the gallery 

 made by the larvae, showing that they hibernate in the adult 

 stage. The plant is common on the islands in the Susque- 

 hanna River. 



Dr. Skinner said he had been working on the Hesperidae 

 and found one group, the "black skippers," very difficult to 

 determine from the descriptions. He has kept all the speci- 

 mens he has received in this family and now without doubt 

 the American Entomological Society has the finest collection 

 of them in the world. 



Mr. Geo. M. Greene exhibited a specimen of Polypleunis 

 geminatus Sol. (Col.) collected by himself under chips at 

 East Falls Church, Virginia, XII-7-'i2. This genus was dis- 

 cussed at the November, 1911, meeting. 



Adjourned to the annex. 



GEO. M. GREENE, Secretary. 



ENTOMOLOGICAL SECTION, ACADEMY OF NAT- 

 URAL SCIENCES OF PHILADELPHIA. 



Meeting of November 21, 1912. Mr. Philip Laurent, Di- 

 rector, presided. Ten persons present. 



Mr. Rehn made a communication on the recent field trip 

 made by Mr. Hebard and himself to the Florida Keys and 

 Texas. Three months, June 2Qth to October 2Qth, were spent 

 in the field and a series of over fifteen thousand Orthoptera. 

 the particular object of the trip, as well as some hundreds of 

 other insects, were secured. The speaker outlined the trip and 

 discussed the features of collecting in portions of the country 

 traversed. The objective points in Texas were the Browns- 

 ville region and the Chisos mountains in the bend of the Rio 

 Grande, both of which were examined, while over fifty other 



