65 



probably exercise an important function in the destruction of maggots 

 by poison. The possibilities of this point are receiving further 

 attention. 



DoDD (A. p.). Two new Hymenoptera o£ the Superfamily Procto- 

 trypidae from Australia. — Pyoc. Linn. Soc. N.S.W., Sydney, xlv, 

 pt. 3, August-October 1920, pp. 443-446. 



Heniilexomyia ahrnpta. gen. et sp. n., here described, is well estab- 

 lished in New South Wales, where it has been bred from pupae of a 

 sheep-maggot fly, as well as from those of Opkyra nigra, Wied., and 

 Polleniastygia, F. [Neopollinosavillosa. R.D.). [c/. 7v'. A.E., B, v, 166]. 



Foot (K.). THotes on Pediciilus vestimenti. — Biol. Bull. Marine Biol. 

 Lab., Woods Hole, Mass., xxxix, no. 5, November 1920, pp. 

 261-279. 



The peculiar bcha\-ionr of lice, Pediculus humamis (vestinienti), whilst 

 feeding on an individual who was addicted to taking drugs suggested 

 a possible means of controlling these parasites by making the host's 

 blood distasteful or even injurious to them. Observations were made 

 on the reaction of lice to quinine, potassium iodide and sodium salicylate 

 in the blood of the host. Of these quinine caused the most abnormal 

 response, but its toxic effect is not sufficient to eliminate the parasites. 

 Experiments are being continued with a view to finding out the 

 reason of the apparent immunity of some individuals to the attacks 

 of lice, and the effect of other drugs upon the latter. 



Hewitt (C. G.). Insects affecting Live Stock and other Animals.— 



Rept. Domin. Ent. & Consulting ZooL, 1917-lS, Canada Dcpt. 

 Agric, Ottaica, 1920, p. 17. [Received 1st February 1921. j 



Investigations have been made in connection with the biology of 

 the chief species of bot-flies [Gastrophilus] affecting horses in Western 

 Canada, the results of which have been published elsewhere [R.A.E.,B, 

 vii, 55] . These pests and warble flies [ Hypoderma] in cattle are appar- 

 ently increasing in abundance in Manitoba. The results of experiments 

 with a small wire insectary used as a trap for Tabanids suggest that 

 such a form of trap might be of great practical value in the vicinity 

 of cattle-yards. Further investigations are being made on the subject. 



Hav.ashi N.). Etiology of Tsutsugamushi Disease.— J/. Parasit., 

 Urbana, III., vii, no. 2, December 1920, pp. 53-68, 3 ])lates. 



This paper deals chiefly with the clinical aspect of the disease and 

 the biology of the causal agent. The organism concerned is a hitherto 

 undescribed species, and is here recorded as Theileria isuisugamushi, 

 sp. n., but the author considers that further study will justify the 

 erection of a new genus for it. The disease is transmitted by 

 a mite, Trombidium {Leptus) akamushi, Brumpt. Bodies similar 

 in appearance and chstribution to those found in human cases have 

 been demonstrated in experimentally infected animals. 



