162 ENTOMOLOGICAL SOCIETY 



its relationships it would be expected to be a parasite of some 

 tineid. leaf miner, it was reared from the cocoons of Glypta- 

 panteles. 



Mr. Webb exhibited an old wagon spoke which showed 

 the work of the longicorn beetle Chion cinctus Drury. He 

 stated that the evidence strongly indicated that the beetle had 

 lived in the spoke for eight or ten years as a larva. It then 

 changed to an adult, which was still living when received. 



Mr. Schwarz called attention to the fact that the subject of 

 retarded development had been thoroughly discussed by the 

 Society at a previous meeting and that this discussion is 

 recorded on pages 108-127 of Volume III of the PROCEEDINGS. 



Doctor Dyar presented a paper entitled "The Larva of 

 Lerina incarnata Walk." It is as follows : 



THE LARVA OF LERINA INCARNATA WALK. 



[Lepidoptera, Lithosiidse.] 



BY HARRISON G. DYAR. 



Larva. Head rounded, wider than high, truncate below, f nil ; clypeus 

 moderate, pale reddish, shining, the sutures of the mouth and ocelli 

 darker. Body cylindrical, robust, whitish luteous, covered by the hairs, 

 unmarked. Warts large, but low and flat, black, distinct, i to vi normal, 

 iv rather large ; on the thorax 2 warts above the stigmatal wart, large, 

 distinct, separate ; wart iii a small wart situated behind wart iv + v. 

 Hair uniform, short, abundant, foxy reddish, evenly cut. Thoracic 

 feet black, the abdominal ones with large black hairy plates, the inner 

 sides of the legs also hairy. No cervical shield nor anal plate. 



Food plant: " Milk weed," Asclcpias pumila (A. Gray) Vail. 

 Larvae collected by Mr. Morris Chrisman, Huachuca Moun- 

 tains, Arizona, and handed to me by Dr. A. D. Hopkins. 

 The larva has the structure of an arctian, not a lithosian. 



Mr. Schwarz recorded the discovery on the North Ameri- 

 can continent of the coleopterous parasite of the common 

 cockroach (Blattella gcrmanica L.), namely, the genus Rhipi- 

 dius. Last year one dead male specimen was found by Mr. 

 Frederick Knab on board of a steamer plying between San 



