36 



Aphides new to Bi-ifcain : Myzus yei, from Hythe, Kent ; M. tnercu- 

 rialis, from Ventnor, I.W. ; M. f/aliifoliuin, from Stouting and Wye, 

 Kent, and Yarmouth, I.W. ; and Aphis abrutaniella, from Great 

 Salkield, Cumberland. 



The Rev. F. D. Morice (" Ent. Mo. Mag.," March, 1919) has 

 described a new British Sawfly, Allantits perkinsi, from Devonshire, 

 Surrey, and Lancashire; no doubt previously confused with A. 

 arcnatus. 



Mr. F. W. Edwards ("Ent. Mo. Mag.," 1919) reports a 

 new British Heteropezine fly, Leptomjna setipennis, from Letchworth; 

 and G)iophoiin/ia triptidians, from Mildenhall, Suffolk. 



Mr. J. W. Alien announces a beetle, Epttraea distincta, as new to 

 Britain, from Oxwich Bay, Glamorgan. 



Mr. F. Laing reports as new to Britain the Aphis trifolii, which 

 Mr. K. G. Blair found on Aster tripoliiun at Shoeburyness. 



Mr. R. A. Cooley (" Journ. Economic Entom.") estimates the 

 damage to animal and vegetable products by insect pests, in the 

 United States, at 1,400 million dollars a year. Writers on this 

 subject agree that these losses represent 10 per cent, of the total 

 value of the crops ; and Mr. Cooley asks whether, by special 

 emergency efforts and organisation, this huge waste cannot be 

 materially reduced ? 



Mr. E. W. Sanford, in " The Journal of Experimental Zoology," 

 writes on the physiology of digestion in Blattidae, the results of 

 observations on more than 600 cockroaches. To the same journal 

 Messrs. C. R. Stockard and G. N. Papanicolaou contribute further 

 studies on modification of the germ-cells in mammals, and on the 

 effects of alcohol on treated guinea-pigs and their descendants. 



In the " Annals of Tropical Medicine and Parasitology " there 

 are interesting articles on " Tsetse-Flies and Fly-belts," " Malaria 

 associated Oedema," and the " Treatment of Leprosy in Nigeria." 



Mr. F. W. Edwards has a note in the " Annals and Mag. of Nat. 

 Hist." on the egg-burster of Encephalous Fly-larv£B, in which he 

 says that the young larva of Bolitophila pseiido-hybrida has been 

 observed moving its head up and down, cutting or scratching a 

 slit in the eggshell. 



Mr. G. J. Arrow describes a remarkable new ball-rolling beetle, 

 Mne)natum cancer, possibly from the Bihe district of Angola, 

 collected by the late B. G. Nevinson. The insect is a striking 

 example of specialisation by successive atrophy of its members. The 



