Dec, I902.] Banks: Sleeping Habits of Hymenoptera. 213 



lecontei rests " during the night and chilly weather in clusters closely 

 attached to the stems of grass and plants." Again in his paper on 

 the Hymenoptera of Cuba (Proc. Entom. Phila., 1865, p. 88), 

 Mr. Cresson says that Professor Poey informs him that Melissa rufipes 

 " retires to a bush to sleep ; it seizes a branch with its mandibles and 

 places itself in a horizontal position, the back turned towards the 

 ground." This resembles the habit of Myzine sexcincta. 



Professor Cockerell (Ann. Mag. Nat. Hist., May, 1900, p. 413) 

 records finding Antliidiiim ptrpictiim " resting on stems of grass in dull 

 weather." 



E. E. Green (Entom. Mo. Mag., 1899, p. 214) says that a speci- 

 men of a bee, Crocisa raiiiosa, roosted for several nights on a twig. 

 It clasped the end of the twig in its jaws, and slept soundly. The 

 legs were folded close against the body, which is extended almost 

 horizontally. 



Saunders (Hymenoptera Aculeata of the British Islands, p. 308) 

 says oi Chelosfoma, a bee: "The male usually spends its nights 

 curled up in flowers, but Smith says that at other times he has observed 

 them hanging to blades of grass by their mandibles ' suspending them- 

 selves in a horizontal position with their hind legs stretched out in a 

 line with their bodies.' " Some of these were killed by chloroform 

 and remained attached after death. 



In the Proc. Cambridge Entom. Club, Oct. 9, 1874 (Psyche, II, 

 pp. 40, 41), it is recorded that Mr. Scudder showed a specimen of 

 " Ammophila gryphus ? which rests at night by seizing a blade of grass 

 with its jaws and holding itself extended either with or without the 

 use of its middle and hind feet. * * >!= Many specimens were seen at 

 different times acting in this manner." The specimen is figured in 

 Morse's First Book of Zoology, p. 94, Fig. 91. 



Mr. Mann, at the same meeting, said that in June, 1872, he found 

 a wasp ( Odynerits .?) which had seized hold of the end of an oak twig 

 with its jaws. It was just at sunset. Mr. Mann also called attention 

 to a note by Mr. Sanbotn in the Proc. Bost. Soc. Nat. Hist., XII, p. 

 98, upon an Ammophila gryphus ? which was clasping a small oak twig 

 with its mandibles and feet. He also called attention to a statement 

 in Westwood's Modern Class. Insects, II, p. 136, where it is said 

 that Latreille wrote that at night or during cloudy weather Fcenus 

 jaculator "fix themselves by their jaws to the stalks of different 

 plants." 



