40 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



A BRIEF NOTE ON CHALCODERMUS COLLARISHORN. 



[Coleoptera, Curculionidae.] 

 BY JAS. A. HYSLOP. 



In the summer of 1907, while engaged in collecting para- 

 sited Rhyncophora for the Cotton-Boll Weevil Investigations, 

 I collected a large number of seed pods of Cassia chamcechrista 

 at Marr's Station, Md., infested with a then unknown cur- 

 culionid larva. Part of this material was preserved and sent 

 to Air. Pierce for discription, the remainder was placed in rear- 

 ing jars on the day of collection, September 17, and observed 

 from day to day until October 1, when I was called away from 

 this city. But no pupse were found. On leaving Washington 

 this material was handed over to Dr. F. H. Chittenden, of 

 the Bureau of Entomology, who sent me the following note 

 some time later : 



Chalcodermus collaris issued from the cassia seed pods you left with 

 me. They started to emerge October 4 and continued to appear until 

 October 8. 



Though this observation does not determine the length of 

 the pupal stage of this insect, I give it as a guide to future 

 observation. 



THE COPULATING AND FEEDING HABITS OF IDIAR- 

 THRON ATRISPINUSSTAL. 



[Orthoptera, Locustidae.] 

 BY A. N. CAUDELL. 



From a translation of a letter from A. Tonduz of San Jose, 

 Costa Rica, which was kindly furnished by Prof. H. Pittier, I 

 quote the following paragraph : 



One day I observed two of my crickets ( Idhtrthron utrispiniis) copu- 

 lating and after separating the female had two white gobular masses 

 attached to her posterior; she then bent down so as to tear this white 

 mass with her mandibles. I observed the same act with another subject 

 and upon another occasion. 



The above indicates that the ejection of the sperm mass by 

 the male in the form of a bilobate seminal sac ( the two masses 

 mentioned in the above extract being very surely the two lobes 

 of a single sac) is not confined to Anabrns and Pcranabnts 

 as recorded by Gillette,* and Snodgrass,f and long before by 



*Ent. News, vol. xv, p. 321-324, pi. xix (1904). 

 tjourn. N. Y. Ent. Soc., vol. xm, p. 79-80 (1905). 



