656 EXPERIMENT STATION EECORD. 



of an anatomical study of M. auricyanea, the larva of which is a leaf miner on 

 the chestnut, oak, and chinquapin. The eggs are deposited in May. The larva 

 completes its feeding within a weeli or ten days and then drops to the ground, 

 into \Yhich it burrows to as great a depth as 1 ft. It remains spun up in a 

 cocoon during the summer and fall, and transforms to a pupa during the 

 winter. Thus more than eleven months of each year of its life are spent under- 

 ground. 



On Acrocercops strigifinitella, C. Heineich and J. J. Degeyse (Proc. Ent. 

 Soc. Wash., n {1915), No. 1, pp. 6-23, figs. Si).— The larva of this lepidopteran 

 has been found to mine the midribs of chestnut, chinquapin, and oalv leaves at 

 Falls Church, Va. Descriptions are given of its structure, stages, and habits. 

 Chestnut appears to be the favorite food plant and during midsummer the worls 

 of the species is very common ; few of the young leaves escape infestation and 

 some bear as many as four separate mines. There are a number of generations 

 with considerable overlapping so that larvae are to be found at any time from 

 May until well into October. 



The small winter moth, (Cheimatobia brumata) (Inst. Phytopath. Wage- 

 ningen, Vlugschr. 14 (1914), pp. 3; abs. in Rev. Appl. Ent., 2 (1914), 8er. A, No. 

 11, p. 642). — This lepidopteran is a widespread pest in Holland in orchards, 

 nurseries, and forests. 



Malaria: Lessons on its cause and prevention, H. R. Cartee (P«6. Health 

 Rpts. [U. 8.], Sup. IS (1914), PP- 20, pis. 4)- — This paper, prepared for use in 

 schools, deals in large part with mosquitoes and their role in the transmission 

 of malaria and the means of prevention of the disease through the control of 

 anopheline mosquitoes. 



Control of malaria: Oiling as an antimosquito measure, J. A. A. Le Prince 

 (Pnl). Health Rpts. [U. S.], 30 (1915), No. 9, pp. 599-608, figs. 5).— The author 

 states that oiling of water surfaces as an antimalaria measure should be sup- 

 plementary to proper drainage, but that where funds are not available for 

 drainage mosquito, propagation can be largely controlled by oiling. He states 

 that there are many grades of oil suitable for mosquito destruction ranging 

 from the very light oils such as kerosene to the heavier or crude oils. The 

 advantage of the lighter oils is that they form a thin film which spreads rapidly. 

 Apparatus and methods for oiling water surfaces of pools, ditches, streams, 

 etc., are described and illustrated. 



Some new observations on the life history of warble flies, G. H. Caepenteb 

 and T. R. Hewitt (Irish Nat., 23 (1914), No. 10, pp. 214-221; ahs. in Rev. 

 Appl. Ent., 3 (1915), Ser. B, No. 2, p. 19). — These data relating to the entrance 

 of the larva into the host's body have been previously noted from another 

 source (E. R. S., 32, p. 680). 



Notes on the pupation of the house fly (Musca domestica.) and its mode of 

 overwintering, C. G. Hewitt (Canad. Ent., 41 (1915), No. 3, pp. 73-78, fig. 1).— 

 The re.sults of careful investigations of soil subjacent to heaps of niar.ure, made 

 with a view to determining the distances and depth to which house fly larvae 

 migrate prior to pupation, are reported upon and diagrammatically illustrated. 

 "A few puparia were found directly beneath the manure pile to a depth of 12 in. 

 The greatest numbers occurred in the region about 18 in. from the pile and at 

 a depth of 12 in. to 2 ft. from the surface . . . the puparia were also numerous 

 immediately below the surface of the soil. The numbers then gradually de- 

 creased proportional to the distance from the pile and dwindled away at a 

 distance of about 4 ft. from its base." 



As regards the overwintering of the house fly, the aiithor states that in no 

 case has he been able to find living pupae of M. domestica under outdoor condi- 



