EC'ONOMIl' ZOOLOGY ENTOMOLOGY. G49 



Report of orchard demonstrations by counties, H. A. Surfack (ZooL BuI. 

 I'eini. I)Pi>t. A in:, (i (li'Ofi). To. 12, pi). J,0J-.',23) .—In addition to the report of 

 spraying demonstrations by counties, insect specimens received during Febru- 

 ary and Marcli. VMM, are listed. 



Biologia Centrali-Americana. Insecta. Orthoptera {London, vol. 1, 1893- 

 7,s'.'^'/. ini. X+.'tr,s. itls. 22; vol. 2, lV00-1i)()'.K />/>. V III + ',12, pis. S; rev. in Nature 

 \ London], 80 (Hm), No. 2061, pp. 2^1, 2.',2).—The first volume, which treats 

 of the Forficulidie. Blattidie, Mautidse, Gryllidfe, and Locustidse, began to appear 

 in 1893 and was completed in 1899. The volume was prepared by Dr. H. de 

 Saussure. assisted by L. Zehntner and A. Pictet. Volume 2, bearing the dates 

 1!)0(t to 1909. contains a monograph on the Acridiidfe by I... Bruuer and A. P. 

 .Morse, and a list of the Pliasniid.-e compiled by R. Shelford. 



The rice bug (Leptocorisa varicornis), IL M. T.,kfroy (Mcni. Dipt. Ayr. India, 

 Ent. t^cr., 2 {1908), No. I, pp. l.i, pi. I). — This pest is a source of injury to rice 

 in India when the grain is forming and the seeds full of milky juice. The bugs 

 gather on the rice ears and suck out seed after seed. Such ears turn wholly or 

 I»artly white, little or no grain being formed. 



Pemphigus venafuscus n. sp., Edith M. Patch {Ent. Neics, 20 {1909), No. 

 7. /)/'• 319-322, pL 1). — This new species was taken from the lilac, elm. and red 

 ash in October at Orono, Me. On the red ash they are said to seek the ash clus- 

 ters of the gall mite Eriophiics frd.iiniphila, where they deposit the true sexes 

 as well as in the rough bark. In these situations on the bark and in ash clusters 

 minute males and females molted and mated, and the winter eggs were subse- 

 quently laid. The author reports this as the tirst time that she has found the 

 sjime species of Pemphigus choosing widely different host plants for the same 

 stage. 



American snowball louse (Aphis viburnicola n. sp.), C. P. Gillette {Ent. 

 News, 20 {1909), No. 6, pp. 280-28.5, pi. 1). — Detailed descriptions of the stages 

 of a new species which attacks Viburnum opulus in Colorado. 



Aphid technique, P. Hayhurst {Ent. News, 20 {1909), No. 6, pp. 2o.j-260).— 

 The author has found a 70 per cent solution of alcohol to be the most satis- 

 factory means for permanently preserving aphids. The more delicate species 

 should be placed in a 3.5 per cent solution for several hours before transferring 

 to the 70 per cent alcohol. It is stated that aphids preserved in abt)ut 2* per 

 cent formalin can be absolutely depended upon not to shrink. If the aphids 

 are fixed in hot water at about 80° C, pricked when sufficiently hard, and kejit 

 in the dark, they will partly retain their normal color. 



Two scale pests of laurel, L. Lindingek {Ztschr. Pflanzenkrank., 18 {1908), 

 No. 6, pp. 321-33(i, pi. 1. fif/s. 2). — The biology, distribution, and economic im- 

 portance of Aspidiotus hritdnnicu.'i and Aonidia hiuri are here considered. A 

 bibliogi-aphy for each species is appended. 



Scale insects from the south of France and from Corsica, V. Marchal 

 {CompL Rend. Acad. 8cL [Paris], 1J,8 (1909), No. 13, ;j/). cS77, 87^.^).— Four species 

 are here described as new to science. 



Notes on the scale insects of Europe and northern Africa, I, P. Marc iiai. 

 (.4»/*. .S'oc. Ent. Erancr, 77 ( 1908), No. 2, pp. 22.i-.309, fhjs. .',(;).— In this article 

 the author considers species of the CoccIujir and Lecaniuse. Pseudococcus citri 

 var. eoleoruni, common on Coleus in the gardens near Paris, and observed at Lau- 

 sanne, Switzerland, and I'henacoccus cliolodkovski from the roots of wheat 

 {Triticuni rulgnre) in central Russia, are descrihed as new. 



Destruction of Lecanium hesperidum by Sporotrichum globuliferum, J. de 

 Camara Pestana {Bui, Hoc. Portugnise Sei. Nat., 2 {1908), Nos. 1-2, pp. 15-18, 

 pj_ /). — A preliminary account of investigations as to the value of the fungus 



