ECONOMIC ZOOLOGY— ENTOMOLOGY. 255 



roofs of the electrical works, the town hall, a schoolhouse, and a factory. The 

 effectiveness of this new destructive agency seems to have been somewhat 

 variable and dependent upon meteorological conditions. The maximum result 

 attained in a single night by such an installation as above described was a total 

 weight of 141 lbs., representing about 400,000 dead moths. Frequently, however, 

 the weight would be less than 70 lbs." 



At times females showed a slight numerical predominance and generally they 

 composed at least 40 per cent of the slaughtered insects. Similar experiments 

 on a smaller scale, in which the electric arc was replaced by acetylene lamps, 

 were instituted in the heart of the forest, and gave satisfactory results. 



Tineids attacking pears, P. Passy {Rev. Hort. [Pari.s], 8/ {1909), No. 16, 

 pp. 386-389, flijH. 6). — In France Coleophora hemerobiclla and C. flavipenella 

 frequently injure the pear, although the latter species seems to prefer the 

 apple. 



The robber-flies of America, north of Mexico, belonging' to the subfam- 

 ilies Leptogastrinae and Dasypogoninae, F. A. Back {Trans. Amcr. Etit. ,b'oc., 

 35 {1909), No. 2-3, pp. 137-J,00, pis. ii).— Thirty-six genera and 194 species are 

 recognized of which 1 genus and 20 sjiecies are here described as new. 



Tabanidae of Brazil and neighboring countries, A. Lutz (Zoo?. Jnhrb., ]909. 

 Sup. 10, No. 4, pp. 619-692, pis. 3). — In this work several genera and many 

 species are described as new to science. Fifty-seven species are portrayed in 

 colors. 



The breeding of the common house fly (Musca domestica) during the 

 winter months, F. P. Jepson {Jour. Econ. Biol., J, {1909), No. 3, pp. 78-82).— 

 A paper read before the Association of Economic Biologists at Oxford, July 13, 

 1909. 



A possible natural enemy to the mosquito, J. M. Atkin.son {Lancet [Lon- 

 don], 1909, II. No. 10. pp. 708-710, figs. 3; Jour. Trop. Med. and Hyg. [London], 

 12 {1909), No. 17, pp. 255, 256, figs. 3). — The author reports that an Anthomyid 

 {Lispa sinensis) has been observed near Hong Kong feeding upon mosquito 

 larvjp. 



Contribution to the study of the mosquitoes which live in salt water, A. 

 Clerc (Compt. Rend. 8oc. Biol. [Paris], 66 {1909), No. S, pp. 120, 121).— Young 

 Anopheles larvfe transferred from stagnant to salt water died in 1 or 2 hours 

 but more mature larvse lived and in 4 or r> hours transformed to nymphs, then to 

 imagos. The adults bred were apparently Anopheles maculipennis. 



The regional distribution of fleas on rodents, G. W. McCoy and M. B. 

 MiTZMAiN {Parasitologii. 2 {1909), No. 3, pp. 2 97 -30. 'i).— From the data pre- 

 sented it appears that the favorite location for the common rat fleas in the 

 vicinity of San Francisco, Ceratophyllus fasciatus and Loemopsylla cheopis, is 

 about the hind quarters of the rat, while Ctenopsyllus musculi prefers the region 

 of the head and neck. The same regional distribution of rat fleas was found in 

 the case of guinea pigs. Squirrel fleas are most numerous on the hind quarters. 



Bevision of the New Zealand Cossonidse, with descriptions of new genera 

 and species, T. Broun {Trans. New Zeal. Inst., 4I {1908), pp. 151-215, pis. 

 2). — Forty-one genex-a and 141 species are here described. 



On the Ichneumonid genus Echthromorpha, R. Kreiger {Mitt. Zool. Mus. 

 Berlin, J, {1909), No. 2, pp. 295-31,',, figs. 20).— Nine of the 17 species recognized 

 are described as new. 



[The North American Cynipidae and their galls], W. BEUTENMtJLLER {Bui. 

 Amer. Mus. Nat. Hist., 23 {1907), pp. 629-651, pis. 5, figs. J,; 26 {1909), pp. 

 29-66, 135-11,5, 2^3-256, 277-281, pis. i7).— Each of the first 4 of these papers 

 is devoted to the species of a single genus, the genera considered being Rhodites, 

 HoJcaspis, Amphibolips, and Diastrophus, respectively. In the fifth paiJer the 

 25493— No. 3—10 5 



