652 EXPERIMENT STATION RECORD. [Vol.36 



tho insecticidally inert but cheaper magnesium silicate for iodoform in tlie 

 powder. 



" The insecticidal power of naphthalin-creosote powders gradually diminishes 

 wlien they are exposed in the open air. The moist nature of such powders 

 precludes their being used successfully in perforated tins, and it has not been 

 possible to dry the powders and at the same time retain the moist and 

 volatile hydrocarbons and other coal-tar derivatives on which the insecticidal 

 effect mainly depends." 



Notes on Anoplura and Mallophaga, from mammals, with, descriptions of 

 four new species and a new variety of Anoplura, G. P. Fekkis {Psyche, 23 

 (1916), No. 4. PP- 91-120, figs. 12). — This paper is supplementary to that pre- 

 viously noted (E. S. R., 36, p. 253). 



Notes on the feeding habits of adult Chrysopidae, L. B. Ripley (Ent. News, 

 28 {1911), No. 1, pp. 35-37).— The author's observations of the feeding habits 

 of adult Chrysopidce have led him to conclude that (1) adults of both sexes 

 feed upon smaller, soft-bodied insects, drink water, and discharge solid excre- 

 ment ; (2) unfed females die of starvation, leaving a large portion of their 

 eggs unlaid; and (3) females on the point of starvation eat their own eggs, 

 extracting them from the abdomen as frequently as they are available. 



A new species of Exoprosopa, F. R. Cole {Ent. Nexcs, 21 {1916), No. 10, p. 

 463, fig.l). 



A new species of Tortrix of economic importance from Newfoundland, 

 A. Gibson (Canad. Ent., J,8 {19 tb), No. 11, pp. 813-315, pi. i).— Under the name 

 Tortrix olcraceana the author describes a new lepidopteran, the larvfe of which 

 in July, 1915, were very destructive to cabbage on farms near St. Johns, New- 

 foundland, and on one farm destroyed all of the first and much of the second 

 phintings. 



A caterpillar on the ears of wheat, W. Sommekville {Jour. Bd. Agr. [Lon- 

 don^, 23 {1916), No. 3, pp. 263-23S, fig. i).— The caterpillar of the rustic shoulder- 

 knot moth {Hadena hasilinea, also known as Trachea or Apamea basilinea) 

 is said to have caused a considerable loss of wheat on experimental plats at 

 Oxford. 



Mosquitoes and man, A. H. Jennings {Science, n. scr., 44 {1916), No. 1128, 

 pp. 201-203).- — A discussion of a paper of the same title by C S. Ludlow.^ 



New Aedes from the mountains of California, H. G. Dyab {Insccutor In- 

 scitiw Menstruus, k {1916), No. 1-9, pp. 80-90). 



The earliest name of the yellow fever mosquito, F. Knab {Insecutor lyiscitke 

 Menstruus, ^ {1916), No. 1,-6, pp. 59, 60). 



Eggs and oviposition in certain species of Mansonia, H. G. Dyar and F. 

 Knab {Insecutor Inscitice Menstruus, 4 {1916), No. 4-6, pp. 61-68, fig. 1). — This 

 paper includes a description of Man.ionia humcralis n. sp. from British Guiana. 



Mosquitoes at San Diego, California, H. G. Dyab {Insecutor Inscitice Men- 

 struus, Jf {1916), No. 4-6, pp. 46-51). 



The March fly (Bibio abbreviatus) in grain fields and as a pest of celery, 

 E. H. Stkickland {Agr. Gaz. Canada, 3 {1916), No. 1, pp. 600-603, figs. 3).-— 

 In the autumn of 1913 and of 1914 a large percentage of the celery plants grown 

 at the Dominion Experimental Station at Lethbridge, Alberta, were found to 

 have been damaged extensively by larvae of B. abbreviatus. This appears, how- 

 ever, to be an exceptional feeding habit of these larvae, which, for the most 

 part, feed on decaying material. 



In the fall of 1914, when the celery was dug it was found that the larvrc had 

 eaten away the soft pulp between the fibro-vascular bundles of the stalks of 



1 Science, n. ser., 43 (1916), No. 1118, pp. 784, 785. 



