ENTOMOLOGY. 793 



morphosis. The literature relating to the development of the intestines in insects 

 is critically reviewed in connection with a short bibliography. 



The development of eye spots in the larvae of Deilephila nerii and Pergesa 

 porcellus, N. Y. Cuznetzov (Ross. Ent. Obozr, i 1 1904), No. 4, pp- 154-162, figs. 6). — 

 The author's study on the development of eye spots in these '1 closely related species 

 of sphinx moths convinced him thai there is no homology between these spots in 

 different species. Detailed notes are given on .the course and development of eye 



Spots. 



Common corn insects, J. M. Stedman i Missouri Stab Bd. Agr. Mo. Bui., 3 (1904), 

 No. 11, pp. 11-17). — The chinch bug is said to cause considerable damage annually 

 to corn in Missouri. Notes are given on the habits, life history, and injurious effects 

 of this insect. In order to prevent the occurrence of this pest in too large numbers 

 it is recommended thai all rubbish, dead grass, and weeds lie raked up into wind- 

 rows in winter and allowed to remain for some time, after which they may be burned. 

 Nearly all the hibernating chinch bugs will thus be killed. Economic and biological 

 notes are also given on corn root-aphis, cutworms, wireworms, and bollworms. 



The more important insect injuries of Indian corn, S. A. Forbes ( Illinois 

 Slu. Bul. 95, pp. 829-399, pis. 5, figs. 38). — This bulletin is in the nature of a mono- 

 graph of the insect pests of coin, and is well illustrated with colored plates and 

 otherwise. While coin is attacked by a large number of the species of injurious 

 insects, particular attention is given in the bulletin to the most important pests. 



In the general discussion in the first part of the bulletin an account is presented 

 of the relation between the corn plant and it> insect visitors, the effects of insect 

 injury, ireneral measures of prevention and remedies, insect injuries to different 

 parts of the corn plant, injuries due to different orders of insects, and a grouping of 

 corn insects according to their economic importance. The greater portion of the 

 bulletin is devoted to the appearance, habits, life history, and means of combating 

 various species of cutworms, webworms, stalk borers, army worms, corn-bill bugs, 

 chinch bugs, grasshoppers, corn worms, etc. 



Some insect enemies of corn, II. B. Derr {Illinois Agr., 8 (1903), No. 4- pp- 

 64-66). — Attention is called to the great number of species of insects which attack 

 corn in a growing or stored condition. Among these pests especial mention is made 

 of Angoumois grain moth,. granary weevil, etc. As a remedy for these pests carbon 

 bisulphid is recommended. 



The cotton-boll weevil, F. Sherman, Jr. (North < ami inn Dept. Agr., Ent. Oirc. 

 14, pp. 11, figs. 5). -The introduction, appearance, life history, and habits of this 

 insect are briefly discussed in connection with their bearing upon the distribution 

 and economic importanceof the pest. The remedies recommended by the Division of 

 Entomology of this Department are believed to he the most effective in controlling 

 the weevil. 



The cotton-boll weevil in Texas, E. D. Sanderson ( Texas sin. ('ire. S, pp. 157- 

 170, figs. 6). — This was a paper read before a joint meeting of the Association of 

 Economic Entomologists and the Society for the Promotion of Agricultural Science 

 at the St. Louis meeting, and has been previously noted (E. S. R., 15, p. 545). 



Cutworms, E. D. Sanderson ( TexasSta. Circ. ■'>. pp. 2, fig. 1). — In combating these 

 insects it is recommended that poisoned bran mash lie distributed in the infested 

 fields. 



The hop aphis i Phorodon humuli), W. T. Clarke (California Sin. Bul. 160, 

 pp. 18, lit/*. 7 i. — The hop aphis appears first in the spring upon staminate hop vines, 

 where they reproduce rapidly for some time before migrating to the female plants. 

 They confine their attacks to the leaves until the young Imp cones are formed, when 

 they also attack these. The hop cones are thereby reduced in size and the aroma is 

 unfavorably influenced. 



It was found by experimenting that the hop aphis could he successfully combated 



