656 EXPKIUMKNT STATION RECORD. 



bio fur contrnllinj; it. It is also rocoimiiciulort that some quicl< acting fertilizer 

 be applied to stiiinilate the growtli of the cro]). 



Scale insects injurious in Nebraska during 1906—7, II. S. Smith (Ann. 

 R/il. \<h)-. Ilort. .soc, Ai) [IlitlS). iij). l.'iD-lli'J. /if/s. 6').— rreviously noted from 

 another source (E. S. K., 20, p. 114(i). 



Peach tree borer, A. F. Conradi and W. A. Thomas {Houtli Carolina Sta, 

 Rpt. 11)09. 1)1). l2Jf-127, figs. 3).— Continuing data previously noted (E. S. R., 

 21. p. 157), the pupation and emergence of the pest during 190S are shown by 

 means of charts. 



Catalogus dipterorum, C. Kektesz [Catalogus diptcrorum. Lcipsic, 1902, 

 vols. 1. pp. 339: 2. pp. 359; Budapest. 1908, vol. 3, pp. 367; 1909, vols. .',, pp. 3',9 ; 

 5, pp. 200; 6. pp. 362). — A catalog of tlie diptera of tlie world. Volume 1 takes 

 up the SciaridjT!, Mycetophilidre, Bibionidfe, Chironomidic, Stenoxenidie, Culic- 

 idjB, Ptychopteridse, Dixidye, Blepharocerid*, Simulid^, Orphnei)hilidiiR, Psy- 

 chodidse, and RhyphidtP ; volume 2, the Cecidomyiid;e, Limnobiidie. Tipulidte, 

 and Cylindrotomidre; volume 3, the Stratiomyiidse, Erinnidfe, CdenomyiidiE, 

 Tabanidfe. Pantophthalmid;e. and Rhagionidie; volume 4, the Oncodidie, Neme- 

 strinidjie. Mydaida?, Apioceridte, and Asilidte; volume 5, the Bombyliidie, There- 

 vid«, and Omphralid;e; and volume 6, the Empididiie, Dolichopodidte, and 

 Musidoridjne. 



Stomoxys calcitrans and Argentine cattle, L. Iches (Bui. See. Nat. Acclim. 

 France, 56 {1909), pp. 10-',-lll; aij.s. in Jour. Econ. Eni., 2 {1909), No. If, p. 

 305). — The stable fly is reported to be the source of great annoyance to cattle 

 in the province of Santa Fe. In an investigation made in 190S the author found 

 the pest breeding in the portions of screenings and chaff, left in the threshing 

 of flax and wheat, which were near the soil and undergoing fermentation. 



The development of Trypanosoma brucei in Glossina fusca, G. Keysselitz 

 and M. Mayer {Arch. Schiffs u. Tropcn Hyg., 12 {1908), No. 13, pp. 532-535; 

 uh.s. in Jour. Trop. Med. and Hug. [London^, 12 {1909), No. 10, p. 157).— The 

 authors were able to experiment only with adult flies caught in the open and 

 which had apparently already bitten animals. They found that such flies 

 when fed on infected animals yielded no higher percentage of infection than 

 those fed on healthy dogs or even not fed at all. They conclude, therefore, that 

 the trypanosomes can develop within the fly only once during the life cycle of 

 the latter and that infection can occur only on the first occasion on which the 

 fly sucks blood. About 10 per cent of the flies caught proved to be infected. 



The forms of the tryi)anosomes found were always found in the proven- 

 triculus, and also in the proboscis and fore and hind intestine. The authors 

 draw particular attention to the parasites which they found adhering to the 

 walls of the proboscis near the opening of the salivary glands and entertain no 

 doubt that the flies are mechanically inoculated at the time of biting. 



Measures suggested against the Argentine ant as a household pest, W. 

 Newell iJou): Econ. Eni.. 2 [1909), Xo. 5. pp. 32',-332. pi. 1. fig. /).— This is 

 an account of simple measures which, in the course of 2 years" observations, 

 the author has found to be effective. In discussing direct methods of destruc- 

 tion, attention is called to the fact that measures which will destroy the queens 

 are necessary. Observations indicate that 1 per cent or less of the workers in 

 a colony can keep the remaining individuals fully supplied with food. 



In winter trapping, advantage is taken of the habit of the ant colonies to 

 segregate or combine in the autumn, jireparatory to passing the winter as large 

 colonies, containing thousands of workers and larvie and dozens or even hun- 

 dreds of queens. These large colonies seek their domicile in well-protected 

 locations favorable for passing the winter, As warm situations are particu- 



