764 EXPERIMENT STATION RECORD. I Vol. 37 



Compsilura concinnata, a Ehiropean species intrcHluee<l into and established 

 in this foiintry as one of the foremost primary parasites of the jjipsy and 

 brown-tail moths, is known to have lieen reared from more than 20 spet-ies of 

 native North American Lepidoptera. It is said to be particularly prolific as 

 a parasite of E. antiopa, in certain instances the percentage of parasitism of 

 this host in the New England States being well over 50. The data at hand 

 appear to establish the fact that it hibernates through the winter in New 

 England in the pupa of E. antiopa. 



The collection of Exoristoidis slossonce at Kenuington, Vt., is recorded and 

 Exorista spinipennin is said to be a synonym of E. slonsona: 



Seasonal abundance of flies in Montana, It. U. Pabkhk {Ent. News, 28 

 (1917), No. 6, pp. 278-282. pi. 1). — This is a reixirt of the sea.sonal abundance of 

 flies, especially the house fly, based upon work done at laurel, Mont., during 

 July and August, 1914. 



Empusa muscae versus Musca domestica, H. T. GOssow (Ann. Appl. Biol., 

 S (1917), N9. 4, pp. 1,')0-1.'}8, pi. I). — In discus-sing the subject the author reviews 

 the work of Hesse, previously referretl to (E. S. R., 34, p. 2.")4), and records 

 cultural experiments and other observations on /.'. »iu-t<ii. 



Report on a trial of tarred felt disks for protecting cabbages and cauli- 

 flowers from attacks of the cabbage root fly, .7. T. W.^dswokth (.Inn. Appl. 

 liioL. .? (1917), .Vo. 2-^, pp. 82-92, pi. l).—\ detailed report of experiments with 

 cabbage and caulifl<iwer, conductetl at Manchester University, which show 

 tarred felt disk.s to l)e a very effective means of protection. A list of 15 refer- 

 ences to literature on the subject is ap|)en(le<l. 



Two new cambium miners, C. T. Gru:ne (O. S. Dept. .Agr., Jour. Agr. Re- 

 search, 10 (1917), .Vo. 6, pp. .5/.5-.1/8, pi. /).— The author describes two new 

 species of Agromy/.a. the larvae of which mine In the cambium of the living 

 tree, causing a .scar which is known as "i.illi-ray tUN-k." The ujlnes .s»»mewhat 

 resemble those of the cambium miner (A(/romy:a jiruinosa) in river birch 

 (Betula nigra), au account of whlcii has previously been note«l (E. S. U., 30, 

 p. 855). 



The species first described is Agromgza accria, which mines down the cam- 

 bium in the trunk and roots of the retl maple (Acer mbrum), occurring quite 

 commonly at Falls Church, Va., and French Creek. W. Va. The aecon<l species, 

 described as A. amelanchieris, was taken from the trunk near the ground and 

 from the roots of the service berry or shadbush (Amrlanchit-r canadensii) at 

 French Creek, W. Va. 



Investigations of the Anthomyidse. the larvae of which are carnivorous, 

 D. Keilin (Parasitology, 9 (1917), \o. S, pp. .?^)-iJrt. pis. n, flys. .J/).— The 

 species conslderoil include Melanochrlia riparin, (irapliotnyia maiuhita, .Alio- 

 gnota agromyzina, Phnoniu spp., Myo.'<pHn mrditabumla. Mydwa spp., Hy<Irottr<i 

 spp., Mu,<<cina spp., etc. 



New genera and species of American muscoid Diptera, C. II. T. Townsknd 

 (Proc. Biol. Soc. Wa.<<h.. SO (1917), pp. ^S-50). — Thirteen genera and four species 

 are here described as new. 



The viability of Melophagus ovinus, the sheep louse fly, sheep ked. or 

 sheep "tick," (Jkokoina SwKhrr and II. It. Sk.ddon (Vr/. .lour., 7.S (1917), No. 

 502, pp. 6-14). — The authors' experiments show that the life of the sheep tick 

 in shed wool is short under uniform temperature, whether cool or moderate. 

 The state of nutrition does not seem to influence tlie viability of the.se ticks. 



Fleas as a menace to man and domestic animals. — Their life history, 

 habits, and control, J. Watebsto.n (Brit. .Museum (Xat. Hist.), Econ. Ser.. No. 

 S (1916), pp. 21, pi. 1, figs. 6). — A popular account 



