93 



that they were quite as numerous on pastures where cattle had been 

 absent since the preceding summer. Tahanus bovinus did not bite 

 the author, those that did so being females of T. bronmis, T. ( Atylotus) 

 ater, T. (Theriopiectes) solstitialis, Chrysops coecutiens a.nd Haematopota 

 pluvialis. 



The life-history of the Simuliids living on the Alps is still unknown. 

 As large swarms occur at altitudes over 6,500 feet, they either do not 

 breed in running water or they are capable of flying considerable 

 distances. An observation of the author's seems to confirm the 

 former view. In 1921 the drought had dried up many small Alpine 

 lakes, whereas streams continued flowing in the valleys. If the Alpine 

 Simuliids breed in flowing water, they should have continued to be 

 abundant, but, on the contrary, they were scarce, and in some places 

 even absent. No larvae were found in the Alpine streams, but after 

 snow and rain in August new pools occurred and Simuliids appeared 

 on the Alps. 



The author failed to induce Simulium gallii to bite him. 



DA Costa Lima (A.). Sobre os Streblideos americanos (Diptera- 



Pupipara). [American Streblids.] — Arch. Escola Sitp. Agric. e 

 Med. Vet., Nictheroy, v, no. 1-2, September 1921, pp. 17-34, 



2 plates. [Received 15th February 1922.] 



Most of the species dealt with are Brazilian, and include Aspidoptera 

 minuta, sp. n., and Psetidostrebla ribeiroi, gen. et sp. n., both from 

 Tonatia amblyotes. A key is given to the American genera of 

 Streblidae and to the species of Aspidoptera. 



PiLi (R.). La Rogna negli Equini. [Horse Mange.] — Allevamenti, 

 Palermo, iii, no. 1-2, January-February 1922, pp. 40-42. 



The three forms of horse mange — sarcoptic, demodectic or psoroptic, 

 and s5mibiotic — are described, with notes on the respective causative 

 mites and instructions for treatment. Helmerich's ointment, tobacco 

 extract, carbon bisulphide, Alessandri mixture (consisting of 1 part 

 chloroform, 1 part petroleum, and 2 parts olive oil), and the fumes of 

 sulphurous anhydride are among the remedies mentioned. 



Chandler (S. C). A Study of the Malarial Mosquitoes of Southern 

 Illinois, n. Operations of 1920. — Bull. Illinois Nat. Hist. 

 Survey, Urbana, xiv, art. iii, November 1921, pp. 23-32, 5 figs., 



3 tables. [Received 16th February 1922.] 



The mosquito survey of Southern Illinois which was begun in 1918 

 [R.A.E., B, viii, 178] was continued in 1920 around Herrin. 



The following species were reared : Anopheles quadrimaculatus , 

 Say [guttnlatus, Harris), from pools, mine ponds and a swampy wood ; 



A. punctipennis. Say, from pools, mine ponds, swampy woods and 

 domestic places ; A. crucians, Wied., Theobaldia {Citliseta) inornata, 

 Will., and Cidex apicalis, Adams, from mine ponds ; C. restuans,Theo. 

 {territans, Wlk.), from mine ponds and open drains ; C. pipiens, L., and 

 C. salinarins, Coq., from mine ponds, open drains, swampy woods 

 and domestic places ; Aedes degustator, Dyar, from woodland pools and 

 mine ponds; and A. canadensis, Theo., from woodland pools. The 

 discovery of the salt-marsh species. Anopheles crucians, Wied., and 

 Aedes sollicitans, Wlk., so far inland has already been noticed [R. A.E., 



B, ix, 88]. Exactly the same numbers of Anopheles quadrimaculatus 



