223 



Bogdanov-Katkov (N. N). SHTOMo-cDnTonaTonorMHecKan >Kii3Hb Ha 



HDro-BoCTOKe PoCCMM. [Entomo-Phytopathological Life in South- 

 eastern Russia.]— BwjineTeHb riocToflHHoro Biopo BcepOCCMMCKMX 



SHTOMO-OmonaTOnorMHeCKHX C"be3A0B [Bull. Permanent All- 

 Russian Ent. Phvtopath. Meetings'], Petrograd, no. 4, 10th 

 December 1921, pp." 1-23, 9 figs. [Received 28th February 1922.] 



The chief centres of entomological activities in south-eastern Russia 

 are Stavropol, Krasnodar (Ekaterinodar) and Novorossisk. Particulars 

 are given of the personnel and staff attached to these centres and to 

 the various Stations. A list is also given of the literature recently 

 published and the projects now under way. One of the more important 

 occurrences during 1920 was the appearance of locusts, Locusta migra- 

 toria, L., in the Kuban district. In the absence of insecticides and 

 sprayers, mechanical measures had to be employed, such as driving 

 the locusts into ditches. Experiments with poison gases were also 

 undertaken and are to be continued. 



Ahlberg (O.) . Zur Kenntnis der schwedischen Thysanoptera. [A Con- 

 tribution to the Knowledge of Swedish Thysanoptera.] — Ark. 

 Zool., Stockholm, xiii, no. 17, 1921, pp. 1-10, 4 figs. [Received 

 28th February 1922.] 



Among the thrips not pre\'iously recorded from Sweden are Rhipido- 

 thrips niveipennis, Rent. ; Cryptothrips latits, Uzel, from meadow 

 grass ; and Trichothrips copiosns, Uzel, from beneath the bark of 

 limes. 



La Aplicacion de Colonias de Novius cardinalis. [The Establishment 

 of Colonies of N. cardinalis.] — Uruguay : Minist. Indust., Defensa 

 Agricola, Bol. Mens., Montevideo, i,"no. 3, March 1920, p. 50, 

 1 map. [Received 28th February 1922.] 



This is a note on the dissemination in Uruguay of Novius cardinalis, 

 imported from Europe against Icerya purchasi [R.A.E., A, x, 93]. 



ScHUNK (L.). El Taladro de los Platanos. [The Plane Tree Borer.]— 



Uruguay : Minist. Indust., Defensa Agricola, Bol. Mens., 

 Montevideo, i, no. 3, March 1920, pp. 54-55. [Received 28th 

 February 1922.] 



Various Bostrychid and Longicorn beetles infest fruit and forest 

 trees in Uruguay. Injury by such borers is very serious in the case 

 of plane trees. The trunks of young trees suffer most injury, but 

 in older ones the chief damage is done to the branches. Measures 

 that have been adopted with entire success in the case of plane trees 

 grown for street shading include the removal of half the larger branches, 

 the cut surfaces being covered with Norwegian tar after a lew drops 

 of carbon bisulphide have been poured into any mines found. Damaged 

 portions of the trunks are cut out, and any mines plugged with rags 

 soaked in naphtha ; after two or three days the cavities are filled with 

 a mixture of cow dung 50 parts by weight, ashes 35, sand 3, and 

 plaster 25. 



