ENTOMOLOGY. 361 



Sta>i. Sprcial B)iJ. S, pp. ^?, jtls. 8). — The investigations reported in this bulletin are 

 noted on page o51 from another source. 



Notes on Bordeaux mixture, G. Staes ( Tijihchr. Plantenziekten, 5 {1899), No. S-4, 

 pp. 130-134). — Notes are given on the relative adhesiveness of Bordeaux mixtures 

 made by different formulas and the effect of Bordeaux mixture upon a number of 

 varieties of potatoes. Most of the information is compiled. 



EXTOMOLOGY. 



The destruction of mosquitoes in the city, C. Fermi and S. Lum- 



BAO {Oenth/. Bakt. u. Pnr.^ 1. AM., "28 {1900), No. 6-7, pjy. 179-185).— 

 The authors give brief biological notes on the mosquitoes which most 

 commonly infest cities. As insecticides against mosquito larvse, the 

 authors used petroleum and chrysanthemum powder with good suc- 

 cess. Several substances were experimented with for the purpose of 

 discovering means for the prevention of the too rapid evaporation 

 of petroleum from the surface of infested water. The substances 

 which were spread upon the surface of the petroleum for this purpose 

 were lanolin, vaseline, tar, naphthalin, olive oil, flaxseed oil, castor oil, 

 and lard. Vaseline and tar spread rapidly over the surface of the oil 

 without coagulating. A large number of plant substances were tried 

 in combination with chrysanthemum powder in the destruction of 

 mosc[uito larvH'. For the destruction of adult mosquitoes the authors 

 tried fumigation with a number of substances, aiuong which the fol- 

 lowing gave the ))est results: C'hloroform, turpentine and vinegar, 

 sulphuric ether, tobacco fumes, and eucalyptus fumes. During the 

 experiments with petroleum it was found that 5 cc. per square meter 

 of water surface killed all mosquito larvae. It was not f oimd neces- 

 sary to renew the kerosene upon the surface oftener than once in 

 14 days. 



Some insects injurious to garden crops, F. H. Chittenden 

 ( U. IS. JJujjt. Agr. , Division of JEntmiwlogy Bui. 23, n. ser'. , pp. 92, 

 figs. 23). — A new vine hore7- of Liniahemis {MonoptUotamihilella) (pp. 

 9-17). — This insect produces gall-like swellings upon the stems of Lima 

 beans. Its present distribution seems to be from Maryland, Virginia, 

 and the District of Columbia southward to Florida and Alabama. The 

 author gives a description of the species in its various stages. The 

 insect attacks Lima bean vines at almost any point along their length, 

 and it was observed that vigorous plants were able to survive the 

 attack while weak ones suffered to a much greater extent. The moth 

 deposits several eggs on each vine. The species is partly double- 

 brooded, the second generation in the District of Columbia being a 

 small one. The greater part of the first generation probably winters 

 over. No natural enemies of the first generation were discovered. A 

 single parasite was reared from a specimen of the second generation 

 and was identified as Omphale llvida. The remedial measures sug- 



