either in the Society's Museum or have been nearly all collected by 

 the author within an area of five miles round Ekaterinburg. The 

 Rhynchota mentioned which are of some economic importance include : 

 Pentatomidae : — Graphosoma italicum, Miill, G. lineatum, Aelia 

 acuminata, L., Carpocoris piirpureipennis, Dg., which is probably only 

 a variety of C. fuscispinus ; Enrydema oleracea, L., common near 

 Ekaterinburg in the middle of May in kitchen gardens and on the 

 leaves of Leonurus cardiaca, L. (mother- wort) ; Zicrona coerulea, L. 



Coreidae: — Syromastes marginatus,h., found in spring on Rumex ; 

 Therapha kyoscyami, L., on Hyoscyamns and sunflowers in August. 



Lygaeidae : — Lygaeus equestris, L. ; Aphanus pini, which has never 

 been found by the author on pines, but is common in forests, sheltering 

 in bad weather under leaves or fallen pine needles ; Pyrrhocoris apterus, 

 L., on limes and thistles. 



Anthocoridae : — Anthocoris memorum, L., a useful species, in that 

 it sucks the juices of aphids. 



Capsidae : — Adelphocoris lineolatus. Goeze ; Calocoris chenopodii, 

 Fll. ; lAjgus pratensis, L., found in early spring on the borders of forests, 

 and in gardens. 



Treherne (R. C.)- The Strawberry Root-Weevil {Otionhynchus ovatus 

 Linn.) — Dominion Dept. Agric, Div. Entom. Ottawa, Bull. no. 8 

 1914, 44 pp., 8 figs., 1 chart. 



This is a detailed account of Otionhynchus ovatus, L., and the methods 

 of its control, in the lower Eraser Valley. 0. ovatus, which has a very 

 vside distribution, is the only strawberry root-feeding insect of economic 

 importance ; associated with it are : 0. sidcatus and occasionally 0. 

 rugifrons. The life-history is given in detail [see this Review, Ser. A, 

 i, pp. 92-94] and a list of its varied food- plants. This wee\al destroys 

 the leaves from the margins inwards, and in attacking the roots, 

 devours the epidermis and works its way up the root in a longitudinal 

 or spiral manner. The greatest injury is done in spring, when the 

 larvae attack the main roots, in late summer confining themselves to 

 the smaller roots and root tips. Tw^o definite periods of migration 

 occur during the year, one in early summer and one in autumn ; 

 " trap board " experiments to catch the weevils on their migrations 

 showed that the summer migration lasts from mid-June to the end of 

 July ; September is believed to be the time of the autumn migration. 

 Against this weevil cultural measures are far more practical than the use 

 of insecticides, none of which repays the trouble involved. Experiments 

 have been conducted to test the efficiency of the following methods and 

 substances as controls and repellents, viz., trap boards, trap lights, 

 tanglefoot barriers, road oil barriers, gasoline torches, arsenical 

 sprayings, soil injections and treatment with carbon bisulphide or 

 powdered potassium cyanide, but it was found that they cannot be 

 recommended in practice. Repellants, such as powdered camphor, 

 sulphur or fresh pyrethrum do not check the migrations of the adult 

 weevil. As regards natural controls, choice of variety, deep cultiva- 

 tion and application of lime and stable manure, pre\aous to the year 

 of planting, followed in June, after the crop is removed, by the destruc- 

 tion of the old leaves and stalks, w*ill be found the most suitable 

 methods for strawberry- cultivation in weex-il-inf ested districts. Autumn 



