441 



ISCHREIBER (A. F.). BHMMaHiK) CaflOBOflOBl, H nnOAOBOAOBl*. [For 

 the attention of horticulturists.] — « CaflOBOfl"b.» [The Horticul- 

 turist], Rostov-on-Don, no. 3, March 1915, pp. 180-182. 



The author appeals to the horticulturists of Russia to assist hira 

 in his researches on the influence of the scent oi various flowers on 

 insects. He asks the following questions, amongst others: - (1) Has 

 it been noticed that Lepidoptera visit flowers with aminoidal scents 

 (i.e. of amines), such as Crataegus, Sorbus, Sambucus. various species 

 of Spiraea, Cornns. Berberis, Clematis, Mespilvs, Viburnum, Pyrus, 

 Castanea, etc.? (2) Do Lepidoptera and Hymenoptera visit flowers 

 with indoloid scents (i.e., of indol). such as Arlslolochia, Calla, Acorus, 

 Stapelia and others, the odour of which resembles that of decomposing 

 animal matter ? AU information is to be addressed to the author at 

 Irkutsk, Siberia, Russia. 



PuRiN (I. I.). JlyHmie copra ManMHbl. [The best sorts of raspberries.] 

 — «CaflOBOfl'b.» [The Horticulturist], Rostov-on-Don, no. 3, 

 March 1915, pp. 187-191. 

 It is stated that the yellow and orange-coloured varieties of 



raspberries, being sweeter, are more subject to the attacks of various 



pests, particularly of the larvae of B^jturus tomentosus. 



ScHREiNER (J. F.). BMHOrpaAHbiM CBepMOKTj. [Oecanthus pellucens. 



Scop.]— «CaA"b, OropOAlj M BaXHa.» [OrcJmrd, Market-Garden \ 



& Bachza], Astrachan, no. 2, February 1915, pp. 45-48. [Received 1/ 



30th June 1915.] 

 The tree-cricket, Oecanthus pellucens, Scop., is found everywhere 

 in South Europe, as well as in Senegambia, Algeria, Asia Minor, 

 and Syria. In Russia it has been reported from a large area of the 

 .southern governments. The adults appear in the second iialf of 

 summer and live on vines, various species of Rubus, etc. The 

 females oviposit inside the stems of vines, the eggs remaining over 

 the winter. The larvae feed mostly on aphids : they moult several 

 times and are fully grown in August. The adults feed also on cater- 

 pillars of various Lepidoptera and on the larvae of Rhynchota, 

 Cephidae, etc. They have been observed to injure the leaves of 

 tobacco and, probably, also of vines. This injury is, however, not 

 important and is more than compensated for by their utility in 

 destropng various pests. The case is, however, different with 

 regard to the damage to vines, caused by the process of oviposition. 

 The infested stems, owing to the numerous wounds, frecpiently wither 

 or break. Thus, this insect is undoubtedly more injurious than useful 

 and must be controlled bv cutting away, in autumn and early in 

 spring, the withered branches infested with eggs. The insect is briefly 

 described and figured. 



KuszNETzov (A.). OAHa M3-b npHHMH-b ycbixaHJfl n/ioAOBbix-b Ae- 



peBbCBlj. [One of the causes of the withering of fruit-trees. J 

 « CaAl>, OropOATi M BaXHa.» [Orchard, Market-Garden & Bachza], 

 Astrachan, no. 3, March 1915. pp. 92-94. 

 The oyster-shell scale, Lepidosaphes ulmi, L. {Mylilaspis poirwrum. 



