I 



ECONOMIC ZOOLOGY ENTOMOLOGY. 163 



Notes are also sivoii on I'onnaliii and milky forma Idohyde as a smut pre- 

 ventive and potassium cyanid lor ('umi.::;ali()n imrjioscs. 



A chemical study of the lime and sulphur dip, K. II. Shaw (Trans. Kans. 

 Acad. *Sc/., Jl) (Ilio',). j)l. I. /tp. .').i-6U). — Some time has been spent by the author 

 in investigating? the clicmic il composition of lime and sulphur dips. 



In order to study the composition of this dij) and the changes which it under- 

 goes, small vats were constructed in the laboratory so as to provide condiitons as 

 nearly as possible like those whicli prevail in actual field work. During the first 

 day the ratio of calcium in thiosulphate to the calcium in the sulphids was as 

 1 : S, while on the sixteenth day it was ~t : s. Likewise on the first day the ratio 

 of the sulphur in the thiosulphate to the sulphur in the sulphids was as 1 : 13, 

 while on the sixteenth day it was 4: 13. The specific gravity was also found to 

 increase constantly and regularly. This is due to concentration from the evap- 

 oration of water and also to the oxidation of sulphids. 



On certain tropical ants introduced into the United States, W. M. Wheeler 

 (Ent. .A'c/r.v. 77 (HXIG), \<). 1, pp. 23-26). — Moiioiiioriiim destructor was re- 

 ported from Florida and Alabama. This ant is believed to have been recently 

 introduced from the Tropics. It feeds on either vegetable or animal sub- 

 stances. Two otlier tropical ants have recently appeared in the United States, 

 Iridomiinncx hioniUs and Prenolepis loiif/icornls. 



The deposition of eggs and the larval life of Tabanidae, A. Lecaillon (Ann. 

 Soc. Ent. Erancc, 74 {1905}, Xo. 1-2, pp. 20-28. pi. 1. pj. 1).—X brief review 

 is given of the literature relating to this subject. 



The author's observations were confined largely to Tahamts quadrinotatus. 

 The female of this species lays its eggs on the stems of various plants at a 

 short distance above the ground. The eggs are deposited in large masses 

 attached to these plants and the female appears to select sometimes a moist 

 and sometimes a comparatively dry locality for oviposition. The larv;e hatch 

 within 13 days or occasionally a longer period and live in the soil, feeding on 

 animal or vegetable material. 



According to the author's observations the larv;e did not attack other insect 

 larvae placed conveniently for them, but would suck out the juices of such 

 insects after they had Ijeen killed. 



The eradication of warble flies by the cooperation of dairy associations, 

 N. ViLLEMOES (Ztschr. Fleisch u. Milchhyg., 16 (1906), No. 7, pp. 226-228). — 

 The first attempts along this line were without much result for the reason that 

 sufficient interest was not felt in the matter by the individual dairyman. In 

 subsequent years, however, the work of eradicating warble flies was prosecuted 

 more industriously and with better success. In 1905 a total of 4,333 cows were 

 treated at a cost of 58f days' work, and the number of warble-fly larviie de- 

 stroyed was 10,30G. The results shown in the greater comfort of the cows and 

 larger yield of milk indicate that the treatment of dairy cows for warble flies 

 is well worth while. 



Internal morphology of the American cattle tick, W. E. Allen (Studies 

 ZooL Lab. Univ. Nehr., No. 67, pp. 2'io-280, pis. '/). — On account of the thorough 

 manner in which the external anatomy of the cattle tick has been studied and 

 d(»scribed, the author confines his attention in the present article to the discus- 

 sion of the internal morphology alone. The methods of preserving ticks for 

 microscopic study are described and notes are given on the anatomy of all of 

 the internal organs. A brief bibliography relating to the subject is appended 

 to the paper. 



The Ixodidae of the Argentine Republic, F. Lahille (An. Min. Agr. Argen- 

 tina Srec Zootec., liact.. ^^et.. ij ZooL. 2 (VMj.i), No. 2. pp. 166. pis. 13. figs. 

 23). — This constitutes an elaborate monograph of the Ixodida; found in Argeu- 



