444 



MosHER (F. H.) & Clement (G. E.). Some timely Suggestions for the 

 Owners of Woodlots in New England. — U.S. Dept. Agric, 

 Washington, D.G., 1917, 8 pp. pamphlet. 



This paper points out to farmers, etc., in New England the 

 opportunity that has arisen for getting rid of classes of timber not 

 ordinarily marketable, while prices are high and the demand for 

 cordwood has increased, and for replacing felled timber with varieties 

 which mil lessen the liability of attack by gipsy moth [Lymantria 

 dispar]. The susceptibility or otherwise to gipsy moth attack of the 

 various species most usually gro\^m has been discussed in a previous 

 paper [see this Revietv, Ser. A, iii, p. 668]. Those species that form 

 the favourite food-plants of the gipsy moth should be removed and 

 the woodland should be kept stocked with valuable species chosen 

 from those varieties that do not favour the increase of this pest. 



Weiss (H. B.). The More Important Greenhouse Insects. — New Jersey 

 Agric. Expt. Sta., New Brunswick, Bull. no. 296, 31st May 1916, 

 42 pp., 35 figs. [Received 25th July 1917.] 



This bulletin has been prepared for the information of New Jersey 

 florists. The author enumerates the principal greenhouse insects 

 occurring in the State, with a description of the life-history, food-plants, 

 injury, and methods of control in each case [see this Revieiv, Ser. A, 

 iv, pp. 204 and 452]. Many species of Coccids are dealt with and 

 scale-insect remedies are discussed. Recommendations for fumigation 

 are given, with detailed directions for the use of hydrocyanic acid gas. 



Howard (L. 0.). An Active Ant-killer (Arach. Solpugid.). — Entom. 

 News, Philadelphia, xxviii, no. 7, July 1917, p. 310. 



A specimen of the Solpugid, Eremobates magnvs, Hancock, was 

 forwarded to the author, having been found destroying large-sized 

 ants. On being taken to an ant-hill this spider is said to have destroyed 

 hundreds of the ants in a few minutes. As these ants are a great pest 

 of freshly planted seeds at San Diego, where the Solpugid was 

 discovered, it is suggested that the propagation of this important ant 

 enemy would be advantageous. 



Jones (D. W.). The European Earwig and its Control.— C7./S. Dept. 

 Agric, Washington, D.C., Bull. no. 566, 18th June 1917, 

 12 pp., 8 figs. 



Forficnla auricularia, L., was introduced into Newport, R.I., in 

 1911, and though not of serious economic importance in Europe, it has 

 increased so rapidly in New^^ort as to cause great annoyance. Eggs 

 are laid in the ground, where the young larvae live in the day, coming 

 at night to the surface about 5th May and feeding on tender green 

 shoots of grasses and other plants. The adults feed on the petals and 

 stamens of flowers, until cold weather sets in, when they descend into 

 the ground from 2 to 8 inches and there hibernate. Natural enemies 

 include a parasitic worm, Filaria locustae, which has been observed in 

 the laboratory to cause the death of 10 per cent, of the earwigs. This 

 is the only natural enemy existing in Newport which is of any 



