being dependent upon the time of spore production in the ferns ; 

 Sivammerdnniia cuprescens, sp. n., bred from larvae in webs on birch 

 (Betida glandulosa) in British Cohimbia ; Acrocercops affinis, sp. n., 

 bred from blotch mines on oak, both deciduous and evergreen, in 

 California ; Parornix {Ornix) spiraefoliclla, sp. n. , mining the underside 

 of leaves of Spiraea sp. in British Columbia ; Gracilaria hypericellu, 

 sp. n., reared from larvae on Hypericum cistifolium and H. punctatmn 

 in Ohio ; and G. ferrnyineJla, sp. n., reared from larvae on Azalea 

 and Rhododendron occidentale in California. 



Gillette (C. P.). The Black Cherry Aphis, Myzus cerasi. — Canadian 

 Entomologist, London, Ont., I, no. 7, July 1918, p. 241. 



It is pointed out that although Myzus cerasi has been treated as 

 a species not having alternate food-plants, it has since been observed 

 upon watercress as well as upon the cherry. There is evidence, however, 

 that this Aphid continues throughout the year upon the cherry in 

 Colorado, and has never been found abundantly upon the alternate 

 host. 



Garnett (R. T.). An Annotated List of the Cerambycidae of California. 



— Canadian Entomologist, London, Ont., 1, no. 7, July 1918, 

 pp. 248-252. 



This list of Californian Cerambycids, which is a continuation of 

 previous instalments [see this Review, Ser. A, vi, pp. 363, 396], includes, 

 among other species of economic importance : — Leptura ohliterata, 

 Hald. , which breeds in Douglas spruce, redwood and other coniferous 

 trees; L. soror, Lee. , found in branches of Pinus ponderosa; L. propinqua. 

 Bland., breeding in conifers ; L. sexmaculata, L., breeding in spruce ; 

 L. brevicornis, Lee, breeding in Pinus ponderosa ; L. crassipes, Lee, 

 bred from Umbellularia californica and Euealyptus globulus ; and 

 L. insignis. Fall., breeding in Monterey pine. 



Lemee (M, E.). D6gats causes dans les Jardins de la R6gion d'Alencon 

 par les principaux Ennemis des Plantes potageres et des Arbres 

 fruitiers. [Damage caused in the Gardens in the Region of 

 Alen9on by the Principal Enemies of Vegetables and Fruit-trees.] 

 — Jl. Soc. Nat. Hortic. France, Par is, xix, March- April-May 1918 ; 

 pp. 42-48, 61-64, 74-76. [Received 13th August 1918.] 



Crioceris merdigera occurred in considerable numbers as an acci- 

 dental pest of onions and chives at Alen9on, the larvae devouring the 

 tips of the leaves. Carrots sown in the spring were badly attacked 

 by red spider. Winter cabbages having been killed by frosts, more 

 resistant plants were imported ; the majority of these bore round 

 galls on the stems containing larvae of a weevil, Ceuthorrhynchus 

 brassicae, and the plants so attacked gave very poor results. Pegomyiii 

 kyoscyami (beet fly) lives in the larval stage in the parenchyma of 

 the leaves, producing large discoloured patches and causing decay 

 of the fohage. The leaves should be cut and burnt as soon as they 

 are attacked, while the larvae are still within them. Leeks were 



.C501) B 



