ECONOMIC ZOOLOGY ENTOMOLOGY. 757 



Combating the phylloxera in Algeria, K. Mar£:s {Bill. Agr. Algerie et Tmiisic, 

 15 {1009), No. 9, PI). 197-21(); Rev. Tit., 31 (1909), Nos. 801, pp. Gl-'i-SlS; 808, 

 pp. (I'f6-6'i9; 809, pp. 668-673 ). — This is a report presented at the Agricultural 

 Congress held at Constantine, in which an account of the occurrence of the 

 grape phylloxera in Algeria is given and methods dealing with it are considered. 

 The pest is said to have first been discovered in Algeria at Tlemcen in 1885. 



The anatomy of Siphonophora rosarum, the green-fly pest of the rose tree, 

 A. J. Grove {I'uraxitoJiKju. 2 (1909), No. 1-2, pp. 1-28, pi. 1, figs, io).— A 

 bibliography of 15 titles, relating to the subject, accompanies the account. 



Preparations for winter fumigation for the citrus white fly, A. W. Mor- 

 rill and W. W. Yothers (U. ti. Dept. Agr., Bur. Ent. Circ. Ill, pp. 12, figs. J/). — 

 As a result of investigations conducted by the Bureau of Entomology of this 

 Department during the past 3 years, fumigation for the citrus white fly has 

 been placed upon a practical basis and the process has been so simpliOed that 

 any citrus grower can undertake the treatment of his grove without depend- 

 ing upon experienced fumigators to conduct the operations. 



This circular, which is based upon investigations in 1907 (E. S. R., 20, p. 555), 

 and extensive field experiments since conducted, calls attention to the desira- 

 bility and. in most cases, the necessity for early preparations, and gives detailed 

 directions for these. The authors recommend fumigation for this pest when 

 groves are isolated by a distance of at least 200 yds. from all other infested 

 groves, in citrus groves or in citrus-growing sections where the white fly has 

 recently appeared and is still of limited distribution, and in sections where co- 

 operation can be secured among growers in naturally isolated groups. 



The genus Pseudococcus in California, E. O. Essig (Pomona Jour. Ent., 1 

 (1909), No. 2, pp. 35-.'i6, figs. 11). — A provisional key to the females of 

 Pseudococcus in California is given, Pseudococcus artemisice, P. agrifoUw from 

 beneath the bark of Quercus agrifoUa in the locality of Claremont, P. obscurus 

 from the roots of Opuntia in the vicinity of Los Angeles, and PJienacoccus 

 ramonw from the roots of the black sage (Ramona stacliijoides) and from 

 the foliage of Diplacus glutinosus are described as new. 



Notes on Californian coccidae, II, E. O. Essig (Pomona Jour. Ent., 1 (1909), 

 No. 2, pp. 31-3-'f, figs. 6). — In continuation of an article previously noted (E. S. 

 R., 21, p. 452), Erium licfitensioides is said to occur in considerable numbers 

 on the stems and twigs of Artemisia californica. The long scale (Coccus 

 longulus) has spread rapidly and alarmed many citrus growers in the Clai*e- 

 mont district. The chaff scale (Parlatoria pergandii) has been found in great 

 numbers infesting the trunk, leaves, and fruit of an orange tree in Pomona. 



Host index to California coccidae, E. O. Essig and C. F. Baker (Pomona 

 Jour. Ent., 1 (1909), No. 2, pp. 53-70). — Quarantine records are included in 

 this list. 



Scale insects and fungi [in the West Indies] (Agr. News [Barbados], 8 

 (1909), No. 186, p. 186). — The red-headed fungus is said to be abundant in 

 Dominica and probably occurs in other islands of the West Indies. This fungus 

 attacks the purple or mussel scale (MytUnspis citricohi) principally and the 

 orange snow scale (Chionaspis citri) slightly. The green shield scale 

 ( Lecanium viride), the brown shield scale (L. hemisphcricum), and similar 

 scales are often attacked by a white fungus which may be detected by the fact 

 that these scales often leave a whitish mark on the leaf or bark when they are 

 removed. 



A preliminary account with descriptions of parasites of Diaspis pentagona, 

 F. SiLVESTRi (Atti R. Accnd. Lined, Rend. CI. 8ci. Fis., Mat. e Nat., 5. ser., IS 

 (1900), I, Nos. 10, pp. 480-402; 11, pp. 563-565).— A lady beetle (Chilocorus 



