434 



Powell (T.). Black Fly of Citrus trees. — Jl. Jamaica Agric. Soc, 

 Kingston, xxiii, no. 1, January 1919, pp. 16-17. [Received 26th 

 August 1919.] 



In addition to ants a brown fungus has been noticed destroying 

 the eggs of the black fly [Aleurocanthus woglumi] on Citrus. It has 

 apparently greatly reduced the numbers of this Aleurodid, and will 

 spread naturally, as the spores are carried by the wind, thus proving 

 a valuable factor in control. Artificial transportation of the fungus 

 has so far been unsuccessful. 



Banana Borer.— JZ. Jamaica, Agric. Soc, Kingston, xxiii, no. 4, April 

 1919, p. 137. [Received 26th August 1919.] 



The attention of growers is called to the spread of the banana 

 borer [Cosmopolites sordidus] to localities previously unaffected. 

 Owing to the favourable conditions which deserted plantations offer 

 this pest, it is suggested that they should be sown with some hardy 

 crop such as beans or peas. Additional care should be taken in the 

 selection of banana plants when setting out the fields and all bulbs 

 should be soaked in pure water for 24 hours. Traps should be set 

 in already infested fields. 



Hood (J.D.). New fcSenera and Species of Australian Thysanoptera.— 



Memoirs of Queensland Mus., Brisbane, vi, 19th December 1918, 

 pp. 121-150. [Received 26th August 1919.] 



Descriptions of 24 new species of thrips from Austraha are given, 

 but no mention is made of any specific food-plants. The following 

 new genera are erected and described : Pterothrips, Phihalothrips, 

 Euoplothrips and Phaulothrips. Keys are also given to the Austrahan 

 species of Haplothrips, Liothrips and Cryptothrips. 



Bridwell (J. C). Some additional Notes on Bruchidae and their 

 Parasites in the Hawaiian Islands. — Proc. Hawaiian Entom. Soc, 

 Honohdu, iv, no. 1, June 1919, pp. 15-20. 



In connection with a previous paper [see this Review, Ser. A, vi, 

 p. 352] the following notes are of interest : In addition to the moth.<; 

 Cryptophlehia illepida and Myelois ceratomiae, and the Bruchid, 

 Pachymerus {Caryoborus) gonagra, pods of Acacia farnesiana have been 

 found to contain Bruchus sallaei, Sharp, which greatly resembles 

 B: prosopis, Lee. A. farnesiana is an imported shrub that has become 

 a troublesome weed, and these insects are therefore beneficial in this 

 respect. In Texas B. sallaei has been recorded as also breeding in Acacia 

 amentacea and Gleditsia triacant'hos. The eggs are laid in groups of 

 2 to 5 on the pods and seeds. The larvae each feed on one seed and 

 enter it for pupation. Adults have fed and oviposited in confinement 

 on pods of Prosopis julijiora. The eggs are parasitised by a Chalcid, 

 Uscana semifumipennis. 



The Dolichos weevil recorded in the previous report \loc. cit.'\ has 

 now been identified as B. pJiaseoli, Gyll., which also occurs in Brazil, 

 France and Italy. 



