ENTOMOLOGY. 1097 



A victorious campaign against the insects, E. L. Fuxlerton {(lard. Mag., 1 

 (1905), No. 2, pp. 08-71, Jigs. 11). — Detailed advice is given regarding the methods 

 of combating the potato beetle, squash bug, cutworms, plant lice, cabbage butter- 

 flies, and other insects together with suggestions on the preparation of insecticides. 



First report of the "Wellcome research laboratories at the Gordon Memorial 

 College, Khartoum, A. Balfour (Khartoum: Department of Education, Sudan Govt., 

 1904, pp. 84+ III, pis. 5, Jigs. 60). — The purposes for which the Wellcome research 

 laboratories of the Gordon Memorial College were established are as follows: To 

 promote technical education, to study tropical diseases of man and animals, to investi- 

 gate methods of detection of toxic agents, to make chemical and bacteriological 

 tests, and to carry out other related lines of research. 



The present report covers the work of the first year and is devoted to a description 

 of the buildings and equipment of the laboratories together with notes on some of 

 the researches thus far carried out. It was found that the most common species of 

 the mosquito in the region of Khartoum is Culex fatigans. A number of other 

 species, however, occurred in this locality including those which carry malaria and 

 yellow fever. 



Notes are given on the common breeding places of the various species and also on 

 the results of work thus far executed in the control of mosquitoes. The methods 

 adopted include the use of kerosene and drainage as well as disinfection of steamers. 

 In the future, a more systematic course of eradication of the mosquitoes will be 

 adopted. Experiments were made in testing the action of chrysoidin, a yellow 

 anilin color. It was found that a solution of this substance at the rate of 1 to 30,000 

 in water destroyed mosquito larv&e belonging to the genera Culex and Anopheles. 

 The amount required for practical purposes, however, renders the method too 

 expensive. 



A list is given of mosquitoes found along the Nile and its various tributaries. A 

 monographic account of the mosquitoes of Egypt, Sudan, ami Abyssinia is presented 

 by F. V. Theobald. A number of biting and noxious insects other than mosquitoes 

 are also noted. Among these mention may be made of tsetse fly and various species 

 of horse flies as well as a plant louse injurious to sorghum. The last-named 

 insect is described by F. V. Theobald as a new species, under the name Aphis sorghi. 

 This insect causes great injury to sorghum but is held in check to some extent by a 

 number of lady beetles and a fungus disease. It was found in the study of cyano- 

 genesis that sorghum plants badly infested contained a larger quantity of hydro- 

 cyanic acid than did uninfested plants. 



The first list of the Orthoptera of New Mexico, S. H. Scudder and T. D. A. 

 Cockerell (Proc. Davenport Acad. Sci., 9 (1901-1903), pp. 1-60, pis. 4). — An attempt 

 was made in the present paper to present as full a list as possible of the Orthoptera 

 found in New Mexico with notes on the life zones, distribution of the Orthoptera, 

 food plants, and a discussion of local faunae. 



The corn root-worms, F. H. Chittenden ( U. S. Dept. Agr., Bureau of Entomology 

 Circ. 59, pp. 8, Jigs. 3). — The life history, habits, and remedies for the western and 

 southern corn root-worms are discussed. Both of these species are described in 

 detail with notes on their geographical distribution and food plants. 



The remedies to be used against the larva? of Diabrotica 12-punctata are largely of a 

 preventive nature. Recourse must be had to improved farming methods so as to pre- 

 vent the insects from securing food supplies by a judicious rotation of crops. On 

 account of the fondness of this beetle tor squash and pumpkins it is not desirable to 

 plant these crops with corn. ^Vhen the beetle occurs on the cucumber, squash, and 

 other related plants it may be combated by the methods which are effective against 

 the striped cucumber beetle or may be sprayed with some arsenical such as is used 

 for potato beetles. 



30858— No. 11—05 5 



