132 



The Poultry Tick.— //. Dept. Agric. S. Australia, Adelaide, xxiv, 

 no. 9, April 1921, pp. 756-757. 

 The importance of precautions against the poultry tick, Argas 

 persicHS, is emphasised. Not only do the mature ticks migrate from 

 place to place by night, but during hot days the larvae emerge from 

 their haunts in cracks, etc., and spread the spirochaetal infection, 

 which they are as capable of doing as the adults. All tick-infested 

 premises, carts, crates, etc., should be thoroughly treated with pure 

 kerosene or with a boiling emulsion of 10 to 20 per cent, kerosene, 

 all cracks and crevices being flooded and woodwork saturated. 

 Spraying is considered useless. 



Sanderson (E. D.) & Peairs (L. M.). Insect Pests of Farm, Garden 

 and Orchard. — New York, John Wiley & Sons, Inc. ; and London, 

 Chapman & Hall, Ltd., 1921, 2nd edn., vi + 707 pp., 604 figs. 

 Price 26s. 



The present volume is the result of the junior author's revision of 

 the original work by Sanderson, and collates the results, more especially 

 those relating to methods of control, yielded by entomological inves- 

 tigation since the work was first issued in 1912. The main additions 

 are three chapters dealing with the insects directly attacking man 

 and domestic animals, and with those injurious to citrus fruits. 



The discussions of life-histories, habits, and control are based upon 

 conditions east of the Rocky Mountains, practicahy no consideration 

 being given to the conditions of the Pacific Coast "or to those of the 

 irrigated country of the Far West. The illustrations adequately 

 meet the needs of such a work of general reference, and the volume 

 must rank as one of the standard works on applied entomology. 



Webber (H. J.). Malaria-Mosquito Survey.— /l«w. Rept. 1919-20, 

 California Univ. Agric. Expt. Sta., Berkeley, 1920, pp. 60-61. 

 A malaria-mosquito survey has been carried out in every county 

 in California. Endemic malaria was found at 5,482 feet, and three- 

 fifths of all the cases of malaria in the State occur in an area of 20,000 

 square miles. All major and minor foci have been located. Successful 

 measures were adopted in southern Shasti County, where 72 per cent, 

 of the people suffered from malaria, 25-2 per cent, showing positive 

 blood smears in the spring. In October 1919, the results of the 

 measures adopted were apparent, as only 12 per cent, showed positive 

 blood smears, while in March 1920 there were none. Owing to the 

 presence of malaria no property had been sold to new settlers, but 

 early in 1920 five times as much property changed hands as had been 

 recorded during the preceding three years. 



DoLLFus (R. P.). Une Espece de Moustique nouvelle pour la Faune 

 Frangaise, Aedes {Ochlerotatus) zammitti, Theobald — C. R. Soc. 

 Biol., Paris, Ixxxiv, no. 19, 28th May 1921, pp. 971-972. 



Aedes {Ochlerotatus) zammitti, Theo., is recorded from France, 

 apparentl3^ for the first time. 



Carter (H. F.). A Revision of the Genus Leptoconops, Skuse.— Bull. 

 Ent. Res., London, xii, pt. 1, June 1921, pp. 1-28, 10 figs. 

 The following new species of the genus Leptoconops are described : — 

 L. longicornis and L. grandis from Western Australia, L. rhodesiensis 

 from North- Western Rhodesia, and L. siamensis from Siam. L. kertezi, 

 Keiff. var. americanus, n., is described from Utah. 



