ECONOMIC ZOOLOGY ENTOMOLOGY. 351 



The insecticides experimented with have not given satisfactory results, but 

 it has been found that tlie destruction of all refuse after the crop is gathered 

 and burning over all strips of grass through and around the fields will give 

 very satisfactory results. Since the adult does not appear to fly far of its own 

 volition unless carried by strong winds, it seems probable that onion fields can, 

 at least to a considerable extent, be kept free from the thrips by running fire 

 over all places near, in which they hibernate. 



Most of the data here presented relating to the onion maggot have previously 

 been noted from another source (E. S, R., 30, p. 160). 



Two new insect pests of currants and gooseberries, R. A. Cooley {Jour. 

 Econ. Ent., 7 (lOlJf), No. 2, pp. 193-195). — A small curculio, Pseudantlwnomus 

 validus, for which the name currant fruit weevil is proposed, has been found 

 at the Montana Experiment Station destroying the fruit of the currant in a 

 manner very similar to that of the currant fruit fly. Liothrips montanus is 

 said to have caused a peculiar injury to the tender, terminal growth of goose- 

 berries and red and black currants in Montana for several years past. 



The destruction of mosquitoes, fl.eas, flies, pediculi, and other insect car- 

 riers of disease, J. S. Pukdy (Rpt. Austral. Assoc. Adv. ScL, 13 {1911), pp. 

 662-673). — The author describes measures, such as drainage, use of petroleum 

 and disinfectants, fumigation, etc., which he states have been successful in 

 destroying insect disease caiTiers. 



Grasshopper control in the southern division of Kansas, S. J. IIuntek and 

 P. W. Claassen {Jour. Econ. Ent., 7 {19W, No. 1, pp. 73-83, pis. 3).— A detailed 

 report of work carried on in 1913. 



On the proper generic names for certain Thysanoptera of economic impor- 

 tance, J. D. lIooD {Proc. Ent. Soc. Wash., 16 {1914), No. 1, pp. 3^-.^.^ ) .— The 

 author points out several changes that must be made in the generic names of 

 Thysanoptera and presents a catalogue of the genera Frankliniella, Physothrips, 

 Tseniothrips, Odontothrips, and Scirtothrips. It is pointed out that Euthrips 

 is an absolute synonym of the genus Thrips and therefore can never be used 

 as a generic name in zoology. 



A bibliography of 34 titles is appended. 



Sterility in oats caused by thrips, C. G. Hewitt {Jour. Econ. Ent., 7 {1914), 

 No. 2, pp. 211-218, pi. 1, fig. 1). — Anaphothrips striatus, commonly known as the 

 grass thrips, is a source of considerable injury to oats in Saskatchewan and 

 British Columbia. The author presents a general review of the literature 

 relating to thrip injury to cereal crops in connection with his discussion of 

 the subject. 



The periodical cicada in 1914, O. L. Marlatt ( U. S. Dept. Agr., Bur. Ent., 

 Periodical Cicada in 1914, pp. 3, figs. 3). — This paper gives information on the 

 occurrence of Brood V of Tibicen scptcndccim, which occupies in the main a 

 rather compact territory lying chiefly in Ohio and West Virginia with a few 

 scattering colonies in Pennsylvania and Virginia. It is stated that some of 

 the southern West Virginia records are oi^en to doubt, as are also some of the 

 records in Virginia. It is pointed out that the cicadas may be expected to 

 emerge from the middle to the end of May and scattering individuals may be 

 found up to the middle of June. 



A request is made that information be furnished to supplement and complete 

 the knowledge of the distribution of this brood. 



Some Pemphiginae attacking species of Populus in Colorado, C. P. Gil- 

 lette {Ann. Ent. Soc. Amer., 6 {1913), No. 4, pp. 485-493, pi. 1; 7 {1914), No. 1, 

 pp. 61-69, pi. 1). — The species discussed in this paper are ThcoaUus populi- 

 monilis, Cornaphis populi n. g. and n. sp., T. popuHcondupUfoUus, Asvphum 

 sacculi n. sp., and Mordwilkoja vagabunda. 



