ENTOMOLOGY. 791 



tigations should he made in order to determine the exact l)iologi('al relation hetween 

 these insects and also to determine effective means for preventing ants from visiting 

 trees infested with plant lice and scale insects. 



White ants in orchards, plantations, and fields, A. N. Pearson {Ar/r. .lour. 

 hikI Mill. Jlcr. \_Nittai'], C {WO.i), No. 21, pp. 777,778).— In controlling infestation by 

 white ants the author recommends that the soil should be treated before setting out 

 orchards. For this purpose arsenical poisons and bisulphid of carbon give good 

 results. The same insecticide methods may be used after trees have been planted. 

 It is suggested that in planting sugar cane the seed pieces may be dipped in a mate- 

 rial (listastefnl to the ants — for example, asafetida, mustard-oil cake, petroleum, etc. 



The mound-building prairie ant, (1. A. Dean { Industrial l,^t, SO {1904), No. 15, 

 pp. 227-2.38, Jir/i^. 6). — The author describes the various details of the galleries, pas- 

 sages, and other features in the construction of the nests of Pogonomyrmex occidentalis. 



The hibernation of ants, R. Cobelli ( Verhandl. K. K. Zool. Bot. Gesell. Wien, 

 5S {190.3), No. 7, pp. .369-380). — A study was made of the hibernation of a number 

 of species of ants, including Lasias fuligino.sus, L. emarginalus, Crema.stognster scutel- 

 Idfis, OiDipoiioluK puhescens, etc. The relationship of these ants to various plant lice 

 was also studie«l. It was found that the differences in the length and other features 

 of the hibernation period were due largely to specific differences in the ants, espe- 

 cialh' their resisting power toward cold. 



Contribution to a kno'wledge of Anopheles, W. Dotsitz {Ztschr. Ilyg. n. Infec- 

 tionskraiil:, 4S [190-3), No. 1, pp. 2J-5-2-38, fgs. 7). — Descriptive and l)iological notes 

 are presented on a number of species of Anopheles, with special reference to such 

 anatomical structures and habits as may be used in differentiating the various species. 



The location of the larvse of Anopheles in Algeria, Edmund and Etienne 

 Sekoent {Aim. Iii.^i. Pasteur, 17 {190.3), No. 11, pp. 763-769). — The larva? (jf Ano- 

 l)heles become located in canals, pools of water, ponds, under vegetation, etc., but 

 the adult moscpiitoes may be carried to considerable distances away from the breed- 

 ing grounds. Notes are given on the usual methods recommended for combating the 

 mos(iuit() nuisance. 



Note on the use of kerosene as a culicide, 8t. (t. Gray {.Tour. Troji. Med. 

 \_Li>ii<Jtiii'\, 6 {190.!), N(i. 20, pp. 313, 314, fig- 1)- — In the author's experience kero- 

 sene pr()vt'<l a valuable remedy in destroying mosquitoes in pools. It was found, 

 however, that only a small proportion of the adult mosquitoes were killed while 

 depositing their eggs on the surface of water covered with kerosene. The author 

 suggests that a larger percentage of egg-laying females might be destroyed by the 

 use of crude petroleum. 



A breeding cage, .T. C. Dollman {Eiit. Pec. and Jour. Variation, 15 {1903), No. 1, 

 p. 7, pi. 1). — The author presents a description of a breeding cage for insects, which 

 is recommended on account of its simplicity, cheapness, and efficacy. The advan- 

 tages of this form of breeding cage are briefly described. 



How shall we arrange our collections? H. T. Fernald {Ent. New.^, 14 {190.3), 

 No. 4, PP- lOS-110). — The author presents a discussion of this question with refer- 

 ence to the practical requirements of systematists and economic workers in showing 

 collections. The conclusion is reached that since the true phyletic relationship 

 betwieen different groujis of insects has not been established, it is impossible to arrange 

 collections strictly according to a natural system of classification. In some respects 

 such an arrangement is, in the author's opinion, unsuitable for an economic 

 entomologist. 



The biology of the honeybee, vox Buttel-Reepen {Allg. Ztschr. Ent., 8 {1903), 

 No. 22-24, pp. 453-457). — A controversial article in which it is argued that the evi- 

 dence upon which N. Kulagin relied in concluding that the drones and workers arise 

 from half-fertilized eggs i.^ unsatisfactory, 



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