132 



freshly cut firs to all other trees, Leptura quadrifasciata, L., L. sequensi, 

 Reitt., L. nigripes, DeG., L. melanura, L., Acmeops pratensis, Laich., 

 and Lamia textor, L., as well as a Clerid, Trichodes ircutensis, Laxm. 



Beliaiev (K. A.). FecceHCKafl Myxa bt, CiaBponojibCKOM rySepniM, 

 en ecTecTeeHHbie oparM m M'bpbi 6opb6bi cb hbh). [Cecidomyia 

 destructor, Say, in the Govt, of Stavropol, its natural Enemies and 

 Remedies for it.] — Published by the Entomological Bureau of the 

 Zemstvo. Stavropol. 



Mayetiola (Cecidomyia) destructor (Hessian fly) has three generations 

 injthe Government of Stavropol. The first is on the wing in May and 

 oviposits both on winter and summer-sown crops ; the larvae of this 

 generation pupate in the first half of July, the second generation of 

 adults appearing in August. These oviposit exclusively on plants 

 from self-sown seed. The third generation appears in the second half 

 of October and oviposits on young shoots of winter-sown crops, the 

 larvae pupating in November and hibernating in the pupal stage. 

 Thus the casual plants from self-sown seed are the only means by 

 which the second and consequently the third generation sur^dve, and 

 their destruction is therefore one of the chief control measures. 



Amongst the natural enemies of the Hessian fly the most important 

 are a Hymenopteron parasitic on the larva and a yellow centipede 

 which feeds on the larvae and pupae. 



NiKOLAIEV (P.). 03MMafl COBKa (OSNMblH HCpSb). OOpaSli }K113HM Cfl , 



Bpefl-b, HaHOCHMbii^ eio nonflMii, m Mtpbi 6opb6bi Cb Hem. [The 

 Caterpillars of Euxoa segetimi, their Life-History, the Damage 

 caused by them to Fields, and the Remedies for them.] — « KDWHOe 

 Xo3flMCTBO.» [Southern Husbandry], Ekaterinoslav, 1917, pp. 301- 

 310, 6 figs. [Received 16th January 1918.] 



A short account of Etixoa segetum with figures of its various stages 

 is given, followed by a popular account of its life-history, damage and 

 control. It is stated as an historical fact that in 1839 this pest appeared 

 in vast numbers practically all over agricultural Russia, and the 

 damage done was so great that the resulting shortage of food led to 

 riots in many parts of the country. 



Noel (P.). Una Invasion d'Insectes americains a Rouen. [An 



Invasion of American Insects at Rouen.] — Bull. Lab. Reg. Entom. 

 Agric., Rouen, 1st quarter 1918, January-March, p. 14. 



The houses of a certain district in Rouen recently became infested 

 with vast numbers of minute insects that covered the inner and outer 

 walls from roof to cellar, as well as furniture, clothing and everything 

 in them in such numbers as to appear like a fine grey dust. The 

 insects concerned consisted of Tyroglyphus farinae, thrips, many 

 Podurids and a few corn and rice weevils. It was evident that these 

 insects came from some granary, and a large shed was discovered in 

 the midst of the infested houses that had been used to store corn and 

 barley siftings from America bought two years previously, and in this 

 the insects, mostly new to the French fauna, had been multiplying 

 enormously. The removal and destruction of the infested grain refuse 



