443 



tree and when fully grown fall to the ground and pupate. The adults 

 emerge and are active in April. The only method of protecting cattle 

 from the larvae is to ringbark the trees. 



Froggatt (W. W.). Notes and Exhibits. — Proc. Linn. Soc. N.S.W., 

 Sijdney, xlv, pt. 1, 25th June 1920, p. 180. 



AnopJiothri])s obscurus {TJirips striatus), the grass thrips of the 

 United States, is recorded for the first time from Austraha, where it 

 has been found damaging tobacco in the Tamworth district. 



Gahax (C. J.). Furniture Beetles. — Brit. Mus. Nat. Hist., London, 

 Economic Ser. no. 11, 1920, 23 pp., 1 plate, 5 figs. 



The life-histories of the following species are described : Anohium 

 punctafion, DeG. (common furniture beetle) ; Ptilinus pectinicornis, L. ; 

 Xestobinm rufovillosiim, DeCI. (death-watch beetle) ; Lydus hnmneus, 

 .Steph., and L. linearis, Goeze (powder-post beetles). 



Uninfested furniture may be protected from a first attack by the 

 application of paraffin oil or turpentine to the joints and all rough 

 places, thus preventing oviposition. This treatment if continued over 

 a sufficiently long period might prove successful in destroying the 

 grubs in infested wood. Other methods advocated include treatment 

 by dry heat, fumigation with a gas vaj^our, or the application of a liquid 

 such as benzine, carbon tetrachloride or terebene. Mercuric chloride, 

 carbolic acid, creosote and various other tar-oil derivatives will afford 

 protection against these beetles as well as other sources of decay. 

 The relative danger and utility of the various gases suitable for fumiga- 

 tion are discussed ; these include hydrocyanic acid gas, carbon bisul- 

 phide, sulphur dioxide, vapour of benzine and carbon tetrachloride. 



The best time to apply treatment is just before pupation or after the 

 young larvae are hatched. In the case of Anohium punctatum this 

 would be about the middle of May and the end of July or beginning 

 of August. With the other species it would be a little earlier. The 

 best method is to treat the material in May and again in July or August 

 €ach year. If carried out for a few years in succession, any of the above 

 mentioned methods should prove successful in completely eradicating 

 the pest. If heat sufficient to raise the temperature in the interior of 

 the wood to 130° F. is obtainable, this will kill all stages of the insect 

 at any time, 



Severix (H. C). The Bean Weevil. — South Dakota State Entomologist, 

 Brookings. Circ. 15, November 1919. 7 pp.. 2 figs. [Received 

 11th August 1920.] 



The life-history of the bean Bruchid, Bruchus obtectus. Say, and the 

 damage caused by it are dealt with. Eemedial measures advocated 

 include cold storage, heat, lime treatment, and fumigation with 

 carbon bisulphide or carbon tetrachloride. 



Severix (H. C). The Potato Flea Beetle. — Soutli Dakota State- 

 Entomologist, Brookings, Circ. IG, November 1919. 6 pp.. 5 figs. 

 [Received 11th August 1920.] 



The life-history of and remedial measure against the potato flea- 

 beetle, Epitrix cucumeris, Harris, are brieflv described. 



