98 



Garden at Breslau, where it destroys salad immediately after sowing 

 and the blossoms of many useful plants. A bait consisting of sugar 

 mixed with borax or calomel is the remedy advised. 



HiNSBERG (0.)- Insektenfanggtirtel. [Bind Traps for Insects.] — 

 Zeitschr. f. P/lanzenkrankJieiten, Stuttgart, xxvi, no. 6-7, 16th 

 September 1916, p. 444. (Abstract from Pmkt. Ratgeber. im Obsi- 

 n. Gartenhau, 1915, pp. 188-189.) [Received 16th December 1916.] 



A new band trap is described, made of cardboard, stamped with 

 alternate vertical and horizontal, as well as circular, impressions. The 

 larva of Cydia pomoneUa, L., prefers a horizontal shelter, while those of 

 fruit-mining moths, such as Lyonetia clerkelki, Hb., etc., prefer vertical 

 ones. 



Wolff (M.). 1st Diestrammena marmoraia, de Haan, ein Schadling ? 



[Is Diestratnmena mar mo rata, de Haan, an injurious Insect ?] — 

 Centralhlait f. Bakt., Parasit. u. LnfektionskrankJieiten, Jena, lite 

 Abt., xlv, no. 6/12, 22nd April 1916, pp. 258-262. [Received 

 16th December 1916.] 



The Orthopteron, Diestrammena marmorata, de Haan, which has 

 been introduced into (lermany partly direct from Japan and partly via 

 Belgium, has been recorded by Reh and others as being occasionally 

 very injurious. Investigations made by Boss in 1914 in hothouses at 

 Thorn, West Prussia, where great damage had been done, have cast 

 some doubt on this. Boss found that the older parts of plants were 

 never attacked and that only in the observation cages were the young 

 shoots injured, and this may have been due to the need for moisture. 

 It is concluded that D. marmorata does not feed on plants, the injury 

 ascribed to it being due to other less conspicuous insects. It may 

 indeed be useful occasionally, as it feeds freely on millepedes and 

 Forjicula spp. Allied European species, which include Troglophilus 

 neglectus, Krauss, T. cavicola, Koll, and Saga serrata, ¥., are all 

 believed to be predaceous. Decticus verrucivon/s, L., which was so 

 named from the fact that the Swedish peasants utilised it to bite away 

 warts on their skin, is a cannibal and will feed on cooked meat. The 

 author has, however, also succeeded in feeding it on fir needles. 

 D. albifrfms, F., which occurs in all Mediterranean regions and in the 

 Canary Islands, has been stated by Kiinckel d"Herculais to have 

 caused enormous injury to vegetables and other crops when appearing 

 in large numbers in Spain, Algeria and South Russia. The fact, 

 however, that this species always occurred together with Dociostmirus 

 {Stauronotus) 'maroccanus sheds some light on the data furnished by 

 Fabre, who stated that in captivity D. albifrons preyed chiefly on small 

 grasshojipers and locusts. 



Beguet (M.). Quatrieme campagne contre las Acridiens {Schistocerca 

 peregrina, 01.) en Algeria au moyen du Coccobacillus acridiorum, 

 d'H6rella. [The fourth Campaign against Schistocerca peregrina 

 in Algeria by Means of Coccobacillus acridiorum.] — Bull. Soc. Path. 

 Exot., Paris, ix, no. 9, 8th November 1916, pp. 679-682. 

 [Received 1st December 1916.] 

 Acting on the conclusions arrived at by bacteriologists as to the 



value of Coccobacillus acridiorum as a means of destroying locusts, 



