26 ENTOMOLOGICAL SOCIETY 



This habit of the Texan Hymenoptera naturally reminds one 

 of the well-known "Butterfly trees" of Monterey, Cala., and 

 Appalachicola, Fla., the sleeping quarters of the Archippus but 

 terfly (Danais ar chip pus} during its winter migration into 

 southern localities, but the case of the Texan Hymenoptera 

 acquires a special interest from the fact that three different spe 

 cies, belonging to three different genera, select certain shrubs as 

 common sleeping quarters. There must be something in the 

 nature of these shrubs or their surroundings which attracts the 

 bees. In looking over the ground I observed that the shrubs selected 

 as sleeping quarters are always of small size, about from 4 to 5 

 feet in height, and always surrounded, and apparently protected, 

 by living shrubbery of much larger size. However, I found a 

 multitude of dead shrubs, of the requisite size and in apparently 

 well-protected situation, upon which I never saw a single sleep 

 ing bee. 



On May 21 a change in the weather took place; the sky re 

 mained clear throughout the night and early morning, and the 

 bees were on the wing long before I made mv appearance in the 

 field. 



The paper was discussed at length by Messrs. Howard, Ash- 

 mead, Benton, Gill, Stiles, and Fernow. Mr. Ashmead expressed 

 great interest in the observations, and said that he had little doubt 

 of their entire novelty. He had noticed wasps in North Carolina 

 in the very early morning but had never seen them asleep. Mr. 

 Benton said that the position of the honey-bee when asleep was 

 well know r n. The upper ones grasp any projections with their 

 mandibles, while the lower ones grasp, also with their mandibles, 

 and fore feet, the legs of those above. In response to a query, 

 Dr. Gill said that fish, when supposedly asleep, are simply 

 quiescent, with their fins waving at intervals or entirely still. 

 Messrs. Schwarz and Gill further discussed the necessity for 

 sleep in animals and the difficulty of distinguishing between sleep 

 and rest. Dr. Stiles also participated in this discussion. Dr. 

 Gill said that in a generic sense sleep and rest are the same ; the 

 former, however, implies dormancy of the faculties, while the 

 latter does not. The difficulty of distinguishing between the two 

 in the lower animals is, in most cases, insurmountable. Dr. 

 Stiles tried to conceive of the sleep of a tapeworm, but found it 

 difficult. Oxyurus, however, he said, undoubtedly has long 



