ECONOMIC ZOOLOGY ENTOMOLOGY. 553 



which was again iu evidence during the year, cyanid of potassium, carbon 

 bisulphid, and fusel oil were found to be the most effective. The author states 

 that he has never seen a clump of sugar canes attacked by the root borer that 

 had not been previously attacked by the root fungus (Marasmius sacchari). 



Several cotton pests, scale insects on mangoes, cherry, citrus, guava, etc., are 

 briefly noted. Two apparently new species of mites were found, one keeping in 

 check the purple scale on citrus and the other parasitizing the star scale {Yin- 

 sonia stelUfera) on Eugenia jamhos. The author records the occurrence of (1) 

 a species of Tetrastichus, bred from the star scale; (2) an undetermined hymen- 

 opterous parasite of rrotopuTvinaria pyriformis ; and (3) a fungus which was 

 found at times attacking Dactylopius caJceohniw. A fungus found parasitiz- 

 ing Lecanium viride and P. pyriformis was determined by H. S. Fawcett of the 

 Florida Station as Cephalosporimn Iccanii. 



Injurious insects and other animals observed in Ireland during the year 

 1910, G. H. Carpenter (Econ. Proc. Roy. Dublin Soc, 2 (1911), No. 3-4, pp. 

 31-51, pis. 5, figs. 6). — The author reports briefly upon the occurrence of insect 

 enemies of corn, cabbage, turnips, mangels, and. potatoes, and of the orchard, 

 forest, garden, and storehouse. 



Report of the g'overnment entomologist, E. E. Green (Admin. Bpts. Roy. 

 Bat. Gard. Ceylon, 1910-11, Ed., Sci., and Art., pt. If, pp. c5-cS). — This report 

 includes brief notes on the insects attacking tea, rubber, cacao, cotton, tobacco, 

 and Albizzia, and miscellaneous pests. 



A bacterial epizootic among locusts in Mexico, F. H. d'H^relle (Jour. 

 Agr. Trop., 11 (1911), No. 122, pp. 238-240; ahs. in Agr. Neivs [Barbados], 10 

 (1911), No. 252, p. 410). — Previously noted from another source (E. S. R., 26, 

 p. 246). 



Some new California and Georgia Thysanoptera, P. R. Jones ( U. S. Dept. 

 Agr., Bur. Ent. Bui. 23. pt. 1, tech. ser., pp. VI+24, pis. 7). — In this paper the 

 author describes 1.3 new species of thrips, representing 9 genera, that were col- 

 lected during the course of investigations of the pear and orange thrips. Tables 

 for their separation are included. 



Tetrastichus gentilei and its relation to the olive PhlcEothrips, G. del 

 Guercio (Atti R. Accad. Econ. Agr. Georg. Firenze, 5. ser., 8 (1911), No. 8-4, 

 pp. 222-227). — This is a preliminary paper dealing with an endophagus para- 

 site of the olive thrips (Plilwotlirips olea), which the author places in the genus 

 Tetrastichus under the specific name gentilei. 



The eggs are deposited in the young larvai of the thrips. the winter being 

 passed in the larval stage in the host and the transformation completed in the 

 spring. The parasites are very abundant in Liguria, as high as 90 per cent of 

 the hosts having been observed to be parasitized. In Lucca, however, the 

 parasite could not be readily found. The author suggests the cutting of 

 branches fi'om trees bearing parasitized material and shipping them to infested 

 points for distribution. 



On a new species of Phloeothripidae of Japan, H. Okamoto ( Trans. Sapporo 

 Nat. Hist. Soc, 3 (1909-10), pp. 89-91). — Under the name Liothrips glycinicola 

 the author describes a new species of thrips which appears to damage the 

 pollen grains of certain leguminous plants, such as daizu (Olyoine hispida), 

 azuki (Adzukia subtrilobata), sasage (Vigna sinensis), etc. 



The red or orange scale (Chrysomphalus aurantii), H. J. Quayle (Cali- 

 fornia Sta. Bui. 222, pp. 99-150, figs. 37).— This bulletin deals with the subject 

 under the following headings : History, distribution, economic importance, food 

 plants, descriptions of the stages, life history and habits, seasonal history, loco- 

 motion and spread, parasites, predatory enemies, the yellow scale (C. aurantii 

 citrinus), and the systematic position of C. aurantii. 



