ENTOMOLOGY. 677 



vvliifli have been tested iiulestroying tliein. In a rliapter on metliods foi' combating 

 locusts an elaborate aeeount is presented of the vari(jus inecluinieal and chemical 

 remedies with which experiments have l>een made. 



Tlie secondary adaptation of the front leg of Gryllotalpa vulgaris, C. Vaney 

 and A. Conte {Ann. Sue. Linn. Li/on, n. .^er., 47 {H'OO), jiji. jr,i^/,',.;, jiiji^. 5).— Brief 

 notes on the changes which the digging feet of the mole cricket undergo during its 

 develojiment from the larval to the adult form. 



A review of the North American species of Athysanus, H. Osborn and E. D. 

 Ball {OJiio Nat., 2 {1902), No. 6, ])j). 231-256, ph. ^).— The authors have excluded 

 a number of species which had previously been referred to this genus and now admit 

 2G species, all of which are descrilH'd, together with notes on their habitat. 



The butterflies of the vicinity of New York City, W. BEUTENMtJLLER {Jour. 

 Amer. Mm. Nat. Bid., 2 {1902), No. 5, Sup. {Guide Leaflet No. 7), pp. 52, figs. 96).— 

 Brief notes are given on the occurrence and feeding habits of nearly 100 species of 

 l)uttcrt1ies which cn'cur within a radius of 50 miles from the city of New York. 



A natural history of the British Lepidoptera, III, J. W. Tutt {London: 

 Swan, Sonnenschein tO Co., 1902, pp. ATJ-f 558). — This volume continues the author's 

 text-book on the subject of British Lepidoptera, and contains a detailed account of 

 the Sphingidae belonging to the group which the author names the Sphingo-microp- 

 teri/gid stirps. As in previous volumes, the synonomy of each species is given in 

 great detail and extensive notes presented on the biology of the different species. 

 The volume is furnished with numerous bibliographical notes and with a complete 

 index. 



Some plants which live upon and in insects, J. L. Sheldon {Nebraska State 

 Bd. Agr. lipt. 1901, pp. l.U-L'fl, figs. //).— This paper is occupied with a discussion 

 of bacteria and fungus diseases which have been found more or less useful in control- 

 ling insect p)ests. 



The common spiders of the United States, J. H. Emekton {Boston: Ginn & 

 Co., 1902, pp. 225, figs. 501). — The purpose of this volume is to present an account of 

 the common species of spiders which will enal)le the ordinary observer to identify 

 them and learn something of their habits and economic relations. The author dis- 

 cusses the anatomy and habits of spiders in general and gives a special account of a 

 nund)er of families of spiders, including Drassidte, Dysderidte, Thonusida?, Attidfe, 

 r.ycosida.', AgalenuUc, Theridida% Linyphiada', Epeiridfe, and Cinitionida?. 



A short description of the Culicidae of India, w^ith descriptions of new^ species 

 of Anopheles, F. V. Theobald {Broc. Bog. Snr. [London], 69 {1902), No. 456, pp. 

 367-394, pi. 1, figs. 2). — In this report on the mosquitoes of India the author briefly 

 describes the known species, together with a number of new ones, and presents a 

 table for use in the identification of all species. 



Observations on the larvae of Anopheles and Culex in winter, B. Galli 

 N'alekio and G. Rochaz {Cen.tbl. I'xdi. v. Bar., 1. Ahl., 32 {1902), No. S-<), Grig., pp. 

 i:i)l-60S). — The authors repeatedly found recently hatched and older larvie of mos- 

 (juitoes in pools and swamps throughout the winter season. Experiments made in 

 the laboratory on the resistance of eggs of Culex to various physical and mechanical 

 agencies indicate a consideralile degree of resistance to these agencies. It is l)elieved, 

 therefore, that the eggs of mosquitoes may hatch during the warm days of winter, 

 even under dry conditions. Subjection of eggs for 22 hours to a temperature of C. 

 had no effect in preventing the subsequent hatching The same results were obtained 

 from placing eggs on ice for 48 hours. It was found that under laboratory conditions 

 the eggs are readily hatched when barely moist or while quite dry. 



Reports on plans for the extermination of mosquitoes on the north shore of 

 Long Island between Hempstead Harbor and Cold Spring Harbor, \V. T. Cox, 

 II. C. Weeks, et al. {Niv York: Nin-tli SInjre Imin-owment Association^ 1902, p/i. 125, 

 figs. S, map i).— In the present volume the report is made on a survey of the northern 



