60 ENTOMOLOGICAL NEWS. [March, 



could not then secure a specimen so concluded to wait for a colder day. 

 On Christmas day I revisited the tree, and almost the first blow of the 

 chisel uncovered a specimen of Hypena scabra, clinging to the wood 

 undrr the loose bark; more were soon found all quite helpless with the 

 cold, and one only gave a feeble flutter. On the same day three more 

 were found under loose bark on a fence-rail, and perhaps half a mile dis- 

 tant from the first; all became quite active on being brought into a warm 

 room, so there can be little doubt that this species hibernates in consider- 

 able numbers. I have taken this species and h'umuli at sugar very early 

 in the Spring along with A. ypsilon. 



I have found Pamphila aaroni at Chincoteaque Island, Va., and also 

 in considerable numbers on the mainland of the Delaware peninsula at 

 Ocean City, Maryland, on Aug. 27, 1896. 



Plusiapurpurigea has been bred by me on Thalictrum; imago emerged 

 June ri, 1896. I have also taken Maine stra ectypa on flowers at dusk in 

 the middle of July. Both species at Wilmington, Del. FRANK M. JONES, 

 Wilmingt n, Del. 



Identification of Insects (Imagos) for Subscribers. 



Specimens will be named under the following conditions : ist, The number of species 

 to be limited to twenty-five for each sending; zd, The sender to pay all expenses of trans- 

 portation and the insects to become the property of the American Entomological Society ; 

 3d, Each specimen must have a number attached so that the identification may be an- 

 nounced accordingly. Exotic species named only by special arrangement with the Editor, 

 who should be consulted before specimens are sent. Send a 2 cent stamp with all insects 

 for return of names. Please put date of capture and exact locality on each specimen. 

 Before sending insects for identificaticn, read page 41, Vol. Ill, Address all packages 

 to ENTOMOLOGICAL NEWS, Academy Natural Sciences, Logan Square, Philadelphia, Pa. 



Entomological Litera.tu.re. 



Under the above head it is intended to note such papers received at the Academy of 

 Natural Sciences of Philadelphia pertaining to the Entomology of the Americas (North 

 and South). Articles irrelevant to American entomology, unless monographs, or con- 

 taining descriptions of new genera, will not be noted. Contributions to the anatomy of 

 i isects, however, whether relating to American or exotic species will be recorded. 



i. THE ANNALS AND MAGAZINE OF NATURAL HISTORY. London, 

 January, 1897. Contributions from the New Mexico Biological Station. 



No. 2. On a collection of Diptera from the lowlands of the Rio 



Nautla, in the State of Vera Cruz, i, C. H. T. Townsend. No. 3. The 



bees of the genus Collctes found in New Mexico, T. D. A. Cockerell. 

 The classification of Oribatidse, A. D. Michael. On Cteniform spiders 

 from the Lower Amazons and other regions of North and South America, 

 with a list of all known species of these groups hitherto recorded from 

 the new world, F. O. P. Cambridge, 2 pis. 



