228 Journal New York Entomological Society. [Voi. xi. 



NOTE ON PENTATOMID^. 



By J. R. DE LA Torre Bueno. 



In looking up authorities for a paper I have in preparation, I find that my un- 

 amiliarity with the synonymy of the Pentatomidas betrayed me into two errors in my 

 paper on " The Pentatomid^ within Fifty Miles of New York," published in the Sep- 

 tember number of the JOURNAL. I made the statement in it that 1 had added a 

 genus and a species to Prof. Smith's New Jersey List, viz., genus Peiitatoma and species 

 Mhtetis strigipes H.S. This, however,'is erroneous, as Pentatoma, auctt. is the same 

 as Lioden/ta Uhl. ; and Alineiis strigipes H.S. is the same as bioctilatus Fab. Will 

 you kindly have this correction appear in the forthcoming Journal, so that matters 

 may be straightened out and the responsibility for this slip put with me, where it be- 

 longs ? 



ON THE SLEEPING HABITS OF SOME ACULEATE 

 HYMENOPTERA. 



By Charles T. Brues. 



Recently, while looking over a series of papers by Mr. E. A. 

 Schwarz, published some years ago, my attention was called especially 

 to some interesting observations made by him (Proc. Ent. Soc. Wash., 

 Vol. IV, I, p. 24) on the sleeping habits of certain aculeate hymenop- 

 tera.* These recall very forcibly some similar observations which Mr. 

 A. L. Melander and myself have made at scattered intervals in various 

 parts of the country, and as ethological notes relating to the sleep of 

 insects are rather rare in our literature, I think these are worthy of 

 record. 



The first instance relates to the common black digger wasp, Prio- 

 noiiyx atrala, which is very abundant in the country about Chicago, 

 111. One evening just at dusk, while collecting insects along the shore 

 of Lake Michigan, I noticed a large sturdy specimen of the sweet 

 clover {Melilotiis alba) which had a considerable number of black 

 objects clinging to the thicker portions of its branches. Just then a 

 specimen of Priononyx flew wearily up to the bush, and after a second 

 or two quietly settled down on one of the twigs among the other black 

 objects which investigation showed to be also members of the same 

 species. All Vvere very loath to move and twenty-five or more wasps 



* Banks (Journal N. Y. Ent. Soc, X, 209) has also described the sleeping 

 nabits of some other species. 



