507 



Annual Report of the Saskatchewan Naturalists' Club 1914. — Dept. 

 Agric, Province of Saskatcheumi, Regina, 1915, pp. 47-71, 10 figs. 



During 1914, Pemphigus popidi-transversus {po'pla.iipetiole gall-louse) 

 affected a great number of Carolina poplars at Moose Jaw. It was also 

 general on cottonwoods and liussian poplar. Leptocoris trivittatns 

 (box-elder bug) appeared in large numbers at Moose Jaw during the 

 autumn. A Cercopid bug appeared in April, attacking garden 

 vegetables. AntJiomyia sp. was plentiful on radish, turnip and onion. 

 Proteopteryx willingana (box-elder twig-borer) was observed at 

 Cottonwood. The Noctuid, Ipimorpha subvexa, caused the curling of 

 the leaves of Carolina poplars during 1913. Agrotis sp. (cutworms) 

 destroyed large quantities of garden produce at Pense in June. 

 A second brood occiirred later and migrated northward. Pieris 

 {Pontia) rapae was reported at Moose Jaw. Three species of blister 

 beetles, Cantharis nuttalU, C. viridans and Epicauta pennsylvanica were 

 observed, the first two species being found on Psoralea argophylla 

 [scurvy pea] and on lupins. Lepiinotarsa decemlineata occurred in 

 large numbers at Regina. Melanades spp. and Cryptohypnus 

 (Hypnoidus) sp. were reported on wheat. Chrysobothris sp., a black, 

 boring Buprestid, was common in June and July. The larch saw-fly 

 {Lygaeonematiis ericJisonii) was observed at Indian Head, whence it has 

 been spreading westward. 



Burgess (A. F.). Report on the Gipsy Moth Work in New England. 



—U.S. Dept. Agric, Washington, D.C., Bull. no. 204, 21st May 

 1915, 32 pp., 5 plates, 3 figs., 6 maps, 5 tables. 



The gipsy moth work conducted by the Bureau of Entomology can 

 be divided into (1) field work, consisting of scouting, hand methods 

 of control and inspection, and (2) experimental work, including the 

 introduction of parasites and natural enemies, study of food-plants, 

 and investigation of the relation of silviculture to the gipsy moth 

 problem. The collection of natural enemies of Lymantria {Porthefria) 

 dispar and Euproctis chrysorrhoea from European countries and from 

 Japan has been carried on since 1905. Observations in (Germany 

 have shown that a pronounced obstacle to the increase of the pest 

 can be furnished by the presence of unfavourable food, and further, 

 that a contagious " wilt " disease is very effective in controlhng the 

 moth. In all, about 30 enemies of the moth have been introduced 

 into New England ; many of these have been received in sufficient 

 numbers to liberate under field conditions. Two species of hymenop- 

 terous parasites, Anastatus bifasciatvs and Schedius kirvanae have been 

 successfully reared. Apanteles lacteicolor, another hymenopterous 

 parasite, deposits its eggs in the moth larvae in August. The eggs of 

 ( 'om.psihira concinnata are deposited in the larva in early spring ; 

 the Compsihira larva, after reaching maturity, burrows through the 

 epidermis of the host and pupates. Calosoma sycophanta has been 

 found to do very effective work by feeding on the larvae and pupae 

 of the gipsy and brown-tail moth. Meteorus versicolor has become 

 well established. Investigations have been carried on for the purpose 

 of securing information as to the identity of the wilt disease and the 

 factors favourable to its increase. Observations on the food-plants 



