454 



Bogdaxov-Katkov (N. N.). Othgt AeflieJibHOCTM neiporpaACKOii 

 CraHi^MM SamnTbi PacieHUM ot BpeAMiejieti 3a 1919 rofl. 

 ripeflnOJlomeHMfl Ha 1920 rOA. [Report of Petrograd Station for 

 the Protection of Plants from Pests for 1919. Plans for 1920.] 

 — MsBecTMfl neiporpaACKOii 06/iacTH0M CiaHUiiii Sammbi 



PaCTeHMM OT BpeAMTeneM [Bull. Petrograd Div. Sta. for Protect. 

 Plants from Pests' , Petrograd, ii, November 1921, pp. v-liii, 5 figs. 

 [Received 7th July 1922.] 



In the course of this report a brief outhne is given of the control 

 measures undertaken during 1919. 



The pests dealt with included : The cabbage fl}' [Phorbia hrassicae, 

 Bch.] ; Phaedon cochleariae, F. ; the cabbage aphis [Brevicoryne 

 brassicae, L.j ; Barathra brassicae, L. ; Euxoa {Agrotis) nigricans, L. ; 

 the cabbage moth [Plutella macidipennis, Curt.] ; and the onion fly 

 [Hylemyia antiqiia, Meig.]. 



Cholodkovsky (N. a.). HOBOM BMAB pOAa Pemphigus, Hartig, 

 WliByiueM Ha OJlbXe. [On a new species of the Genus Pempliigus, 

 Hrtg., hving on Alder.]— MSBeCTHfl FleTporpaACKOM 06jiaCTHOM 

 CiaHUMM SaiMMTbl PaCTeHMM OT BpeAMieJieil [Bull. Petrograd Div. 

 Sta. for Protect. Plants from Pests], Petrograd, ii, November 1921, 

 pp. 0-9, 4 figs. [Received 7th July 1922.] 



Pemphigus baicalensis, sp. n., is described from individuals taken in 

 1914 on Alnus viridis in the Transbaikal region. Little is known of 

 its life-history, but it apparently lives on alder and there is no evidence 

 of an alternative food-plant. 



The author considers that Prociphilus {Eriosoma) tessellatus. Fitch, 

 described by Pergande as living on the bark and roots of alder, should 

 be transferred to the genus Pemphigus. 



JakOBSOX (G. G.). K iVIop(j)OnOniM M CuCTeWaTlIKe HGKOTOpblX POAOB 

 nOACeiVI. Chrysomelini. [On the ^Morphology and Classification 

 of some of the Genera of the Subfamily Chrysomelini.] — 



MsBecTMfl neiporpaACKOM 06nacTHOM CiaHUMn Saiumbi PacTeHMW 

 OT BpeAMieneM \Btdl. Petrograd Div. Sta. for Protect. Plants from 

 Pests], Petrograd, ii, November 1921, pp. 20-24. [Received 7th 

 July 1922.] 



Phaedon bogdanovi-katkovi, sp. n., from the Ural district, is described 

 in Latin. 



Schtakelberg (A. A.). OeHonorMHecKne HaSnfOAeHMfl naA HaceKOMbiMM 

 B neiporpaAe m ero OKpecTHOCTflx b 1918 roAy. [Phenological 

 observations on Insects in Petrograd and its neighbourhood in 

 1918. — l/lsBecTMfl neiporpaACKOM OS/iaciHOM CiaHUMH Saiumbi 

 PaCieHMM OT BpeAMieneM Bull. Petrograd Div. Sta. for Protect. 

 Plants from Pests], Petrograd, ii, November 1921, pp. 25-53. 

 [Received 7th July 1922.] 



Data regarding the occurrence of insects in the district of Petrograd 

 are recorded in the form of a diary as an aid for future studies of 

 insect pests. 



