470 



are not sexually mature for some weeks and are long-lived. There 

 are three generations a year on an average. 



The injurj^ is caused in the larval and adult stages, the larva working 

 internally and the adult externally. Plants linger for a long period 

 in a stunted condition after weevil attacks. The transportation of 

 ornamental plants from one locality to another, and the fact that the 

 weevil readily attaches itself to clothing, the hair of animals, etc., are 

 the chief means of distribution, as the weevils cannot fly. 



Remedial measures depend on the circumstances of infestation. 

 Handpicking the adults and applying powdered or liquid lead arsenate 

 to the plants are effective. Adults hiding in the soil can be brought 

 into view by flooding, while prolonged soakings may kill the larvae and 

 pupae. For serious infestations, the only effective remedy is a com- 

 plete and thorough destruction of the ferns. 



A Braconid larval parasite of the genus Doryctes has been introduced 

 from New South Wales, and may prove of great benefit. Another 

 Hymenopterous parasite, Ischiogonus palliatus, which has been known 

 in Hawaii for many years as an enemy of Cerambycid and Curculionid 

 beetles, has also been bred from S. fulvitarsis ; and the weevils are 

 destroyed to some extent by a fungus. 



Jegen (G.). Zur Biologie und Anatomie einiger Enchytraeiden. 



[On the Biology and Anatomy of some Enchytraeidae.] — 

 Vierteljahrschr. naiurf. Ges., Zurich, Ixv, 1920, p. 100. (Abstract 

 in Wiener Landw. Ztg., Vienna, 1921, no. 50-51.) 



Enchytraeid worms have been found in strawberry plants feeding 

 on the Nematodes, Tylenchus devastatrix and Aphelenchiis ormeroides. 

 If conditions favour them and the plant is sufficiently vigorous, they 

 are capable of preventing its destruction by the Nematodes. 



MoRSTATT (H.). Unsere Obstbaumschildlause. [Our Fruit-tree 

 Coccids.] — Mikrokosmos, xiv, 1920-21, p. 11. (Abstract in 

 Wiener Landw. Ztg., Vienna, 1921, no. 50-51.) 



This is a review of the more important German species of Diaspinae 

 and Lecaniinae, with special reference to the hibernating stages of 

 the latter. 



Bernard (C). Verslag van het Proef station voor Thee over het 

 Jaar 1917. [Report of the Tea Experiment Station for 1917.] — 

 Meded. Proef st. Thee, Buitenzorg, Iviii, 1918, pp. 1-11. [Received 

 2nd August 1921.] 



The information regarding mites and HelopeUis on tea contained 

 in this report and in its supplements is included in papers already 

 noticed [R.A.E., A, vi, 37, 179; vii, 31, 41]. 



Nalepa (A.). Neue und wenig bekannte Eriophsdden. [New and 



little-known Eriophvidae.] — Vcrhand. zool.-bot. Ges., Vienna, 

 Ixx, no. 3-5, 30th November 1920, pp. 81-98. [Received 2nd 

 August 1921.] 



The subject-matter of this paper is indicated by its title ; it includes 

 descriptions of a new sub-species and six new species of plant-infesting 

 mites. 



