178 



ToTHiLL (J. D.). The Introduction and Establishment in Canada of 

 the Natural Enemies of the Brown-Tail and Gipsy moths.-^^^rnc. 



Gaz. of Canada, Ottawa, iii, no. 2, February 1916, pp. 111-116^ 

 1 map, 1 table. 



The gipsy moth [Lymantria dispar] and the brown-tail motli 

 [Euproctis chrysorrhoea] are rapidly spreading northward into Canada 

 from the New England States. At the present time, the brown-tail 

 moth is firmly established in Nova Scotia, while New Brunswick is. 

 reinfested from year to year if favourable winds occur at the time of 

 flight. The gipsy moth has not yet reached Canada. To prevent any 

 future attack on the northern forests of the Dominion, protective 

 measures, in the form of the introduction of insect enemies, are being 

 undertaken. Since 1912, the following predaceous and parasitic insects 

 have been reared and liberated : — Compsilma concinnata, Calosotnor 

 sycopTianta, Meteorus versicolor and Apanteles lacteicolor. No attempts 

 have yet been made to recover C. concinnata or C. sycopTianta from the 

 field, but A. lacteicolor is rapidly increasing in numbers and has been 

 recovered from the winter webs of E. chrysorrhoea. 



DiETz (H. F.) & Morrison (H.). Phenacaspis spinicola, n. sp. ; an 

 apparently New Coccid from Indiana (Hem., Hom.). — Entom. 

 News, Philadelphia, xxvii, no. 3, March 1916, pp. 101-102, 1 fig. 



A preliminary description is given of Phenacaspis spinicola, sp. n.,. 

 a Coccid obtained from the bark, spines, twigs and leaves of Gleditsia- 

 triacanthos (common honey locust), near Vincennes and Indianapolis, 

 Indiana, during August and September 1915. 



Hood (J. D.). A New Species of Heterothrips (Thysanoptera) from 

 Eastern United States.— Entom. News, Philadelphia, xxvii, no. 3, 

 March 1916, pp. 106-108. 



Heterothrips vitis, sp. n., is described from Maryland on flowers of 

 tvild grape, Smilax and Rhus toxicodendron, and from Columbia and 

 Virginia on flowers of wild grape. 



Surface (H. A.). New Pest attacks Fruit-Trees. — Penns. Dept. Agric, 

 Harrishurg, Weekly Press Bull. no. 9, 2nd March 1916. 



The red leaf beetle [Galerucella cavicollis] has been very destructive 

 in several counties in the northern and central portions of Pennsylvania, 

 feeding upon foliage of cherry, peach, apple, pear and some other trees, 

 shrubs and plants. The native food-plant of the adult beetle and its. 

 larva is Primus pennsylvanicus (Pennsylvania fire cherry). The larva 

 does not feed on any other species, but completely defoliates this tree, 

 and while the adult feeds on many trees, especially the cultivated 

 cherry, peach and plum, and sometimes upon apple and pear, it does, 

 not oviposit on them. The best general remedy is to destroy the fire 

 cherry trees (which have no economic value), but the best local 

 remedy consists in spraying with lead arsenate, 1 oz. in 1 U.S. gal. of 

 water, whenever the beetles or their larvae are destructive. 



