270 



cent, of the space to be fumigated is required to kill all stages of this 

 moth. The egas are mach more susceptible to the gas than the larvae. 

 Tineola pellionella, Trichophaga tapetzelh {tapetiella) and Endrosis 

 Jacteella mar be controlled in the same way. 



Kleine (-.). Thereva nohilitata Fabr. (eln neuer Roggenschadling) 

 [A new Pest of Jiye.^ — Zeitschr.f. angew. Entotti., Berlin, iv, no. 3, 



1918, p. 373. [Received 1 9th April 1 920. ] 



As similarly recorded from Silesia {R.A.E., A, v, 231], a Therevid 

 fly has now been found infesting rye in Pomerania, and as the result 

 of breeding has been identified as Thereva nohilitata, F. The infestation 

 apparently depends on the type of soil, damp ground being preferred. 

 Pupation occurs in the ground at a depth of from 2 -2| in. Very little 

 is known of the biology of this fly. 



Teichmann (E.). Zur Biologie des Kabinettkafers (Anthrenus 

 museorum.)— Zeitschr. f. angcw. Entoni., Berlin, iv, no. 3, 1918, 

 pp. 375-376. [Received 19th April 1920.] 



Antlirenns tnuseorum is recorded as damaging the linen lining of a 

 trimk and a woollen suit which was in it. The larvae were killed by 

 exposuie for six hours to two volumes of hydrocyanic acid per cent, 

 of the space to be fumigated. A smaller amount would probably be 

 sufficient, but further observations are necessary to determine the 

 minimum effective dosage. 



Haenel(Iv.). Maikaferplage und Vogelschutz. [The Cockchafer Pest 

 and Bird Protection.] — Zeitschr.f. angeiv. Entoni., Berlin, v, no. L 



1919, pp. 34-42. [Received 19th April 1920.] 



A list of 68 birds is given which are commonly found in the Bienwald 

 in the Rhine Palatinate. Of these 17 have been proved to feed on 

 cockchafers [Melolontha]. Although they are energetic destroyers 

 of this pest, their value in controllmg its numbers should not be 

 overrated, the most satisfactory means of eradication being those 

 previously described [R.A.E., A, v, 33]. 



MiJLLER (H. C.) & MoLZ (E.). Beobachtungen uber das Auftreten der 

 Erdraupen der Saateule {Agrotis segetum, Schiff.) im Jahre 1917. 



[Observations on the Appearance of Caterpillars of Agrotis segetum, 

 Schiff., in 1917.] — -Zeitschr.f. angeic. Entom., Berlin, v, no. 1, 1919, 

 pp. 43-46. [Received 1 9th April 1920.] 



During 1917 Enxoa (Agrotis) segetum was one of the chief pests in 

 the vicinity of Halle. The crops attacked included grain, potatoes, 

 cabbages, turnips, beet, spinach, tobacco, sugar, onions, parsnips and 

 carrots, the latter two being those most severely damaged. 



The caterpillars appeared particularly early during the year under 

 discussion, damage being noticed at the beginning of June. Their 

 abmidance is attributed to the dry weather experienced during May and 

 June of that year. Natural enemies include birds and a Carabid beetle, 

 Broscus cephalotes, L. The remedial measures advocated include the 

 careful selection of rotation crops, the use of artificial manure and 

 as early cultivation as possible. 



