109 



Schroder (C.) & others. Handbuch der Entomologie.— Gustav 



Fischer, Jena. (Review in Ccntyalbl. Baki., Parasit. u. Infek- 

 tionkr., Jena, lite Abt., lii, no. 16-17, 20th December 1920, 

 p. 388.) 



This work, which is being issued in four vokimes, is being pubHshed 

 in response to the demand in Germany for an extensive text book. 



ScHMiTT (C). Insekten als Blattminierer. [Insects as Leafminers.] 



— Natiirw. Wochcnschr., N.S. xvii, 1918, pp. 721-724. (Abstract 

 in Centralbl. Bakt., Parasit. u. Infektionkr., Jena, lite Abt., 

 hi, no. 16-17, 20th December 1920, p. 390.) 



Leaf-mines may be divided into gallery-mines and blister-mines. 

 In the latter the epidermis is raised as an almost transparent mem- 

 brane. The author made contact prints direct from the " leaves, 

 in order to obtain illustrations of the following mines, details of 

 which are discussed : — Lepidoptera : Lyonetia derkcUa on cherry ; 

 Bncculatrix fangiilella on buckthorn ; Nepticula centifoliella on 

 roses ; Tischeria complanella on oak ; Phyllorycter [Lithocolletis) 

 qiiercijoliella on Quercus pedunculata ; P. [L.) comparella on Popuhts 

 alba; Coleoptera: Rhynchacnits {Orchesies) Jagi on Fagus sylvatica ; 

 Diptera: Phytomyza nigra on Lappa. 



ZiMMERMAXN (H). Ueber die Erdraupen der Wintersaateule {Agrotis 

 segefwn, Schiff .). Erdraupenschaden in Mecklenburg in 1912-1917. 



[The Caterpillars of Euxoa segetum and their Injury in Mecklenburg 

 in 1912-1917.] — Arch. Ver. Freiinde Naturgcsch. in Mecklenburg, 

 Ixxiii, 1919, pp. 25-54. (Abstract in Centralbl. Bakt., Parasit. 

 u. Infektionskr., Jena, lite Abt., lii, no. 16-17, 20th December 

 1920, pp. 394-395.] 



The information given here is substantially the same as in a paper 

 already noticed [R.A.E., A, vi, 444]. 



ZiMMERMANx (H). Ueber die Erdraupe der Wintersaateule. Ein 

 weiterer Beitrag zu der Lebensweise und Bekampfung. [The 

 Caterpillar of Ettxoa segetum. A further Contribution regards its 

 Life-history and Control.] — Mecklenburg. Landicirischajtl. Wocli- 

 enschr., iv, 1920, pp. 184-188. (Abstract in Centralbl. Bakt., 

 Parasit. m. Infektionskr., Jena, lite Abt., lii, no. 16-17, 20th 

 December 1920, p. 395.) 



These observations on Euxoa segetum, made in Mecklenburg in 

 1918 and 1919, continue those already recorded [R.A.E., A, vi, 

 444]. They confirm the assumption that weather is a dominant 

 factor as regards this moth [R.A.E., A, ix, 63]. In 1918 cold weather 

 prevailed from the end of May up to mid-July, while continuous wet 

 weather prevailed from the end of July up to September. These 

 conditions proved unfavourable to the pest. Hibernation is more 

 common in the larval stage than in the pupal one, and this accounts 

 for the occasional spring injury to winter corn. In 1918 caterpillars 

 and adults appeared from the beginning of April up to 19th Juh% 

 but not later. Besides the appearance in winter corn of caterpillars 

 that had not completed their development in 1917, only one case 



