191 



danger of its spread to the Southern States. Many of the recommenda- 

 tions contained in it have since been dealt with [R.A.E., A, vii, 224, 

 411 ; viii, 91, 97-99]. 



The Sweet Potato Weevil {Cylas formicarius). — Amer. Plant Pest 

 Committee, Boston, Mass., Bull. 1, 12th May 1919, 2 pp., 1 fig. 

 [Received 8th March 1920.] 



The sweet potato is now the second most important vegetable crop 

 in the United States, and the loss due to Cylas formicarius is estimated 

 at over 6 per cent, of its total value. This weevil is well established 

 in Texas, Louisiana and part of Florida, has a foothold in Mississippi, 

 Alabama and Georgia, and is Hable to spread wherever sweet potatoes 

 are grown and stored. 



From its life-history it seems that direct remedies cannot entirely 

 exterminate it or prevent its spread. The best results come from 

 community application of repressive measures carried to the point of 

 eradication, consisting chiefly of practical, clean culture, and the use of 

 weevil-free planting stock. These measures should be applied in 

 special districts under the close supervision of inspectors, and supple- 

 mented by rigid quarantine laws. The Federal Government is being 

 asked to provide £15,000 (about 1 per cent, of the value of the damage) 

 to be used in conjunction with the contributions of the various States 

 where the weevil is estabUshed. 



FuLLAWAY (D. T.). The Fern Weevil Menace. — Hawaiian Forester & 

 Agriculturist, Honolulu, xvii, no. 1, January 1920, pp. 3-4, 1 plate. 



A serious infestation of ferns of the genus Sadleria by the Australian 

 fern weevil. Sijagrius fulvif arsis, Pasc, was noticed in September in 

 the neighbourhood of Kilanea and has now spread on the fish-tail fern 

 to such an extent that eradication does not appear to be feasible. 

 Isolation is apparently the only possible remedial measure. In the 

 mountains behind Honolulu, this beetle has been present for 15 years. 



Crawford (D. L.). The Jumping Plant Lice of the Palaeotropics and 

 the South Pacific Islands. Family Psyllidae, or Chermidae, 

 Homoptera. — Philippine Jl. Sci., Manila, xv, no. 2, August 1919, 

 pp. 139-208, 3 plates, 3 figs. [Received 5th March 1920.] 



The PsylHds of the Palaeotropics are not of much economic importance, 

 though a few species do considerable damage, and no doubt when 

 the habits of certain others are known the number of those of economic 

 interest will be augmented. 



Euphalerus vittatus, Crawf., has been recorded from Bombay on 

 Cassia fistula, and E. citri, Knw., is a pestof Citrus. Arytaina jmncti- 

 pennis, Crawf., injures indigo {Indigofera) in Bengal and Ceylon, 

 and A. obscura, Crawf., attacks mangos (Mangifera) in Bengal. 



Several new species are described. 



Report of the Canadian Arctic Expedition 1913-18, III ; Insects, 

 Part E : Coleoptera, Ottaiva, 12th December 1919, pp. 1-27E., 

 3 plates. [Received 8th March 1920.] 



The beetles here dealt with include Scolytidae (Ipidae), Ceramby- 

 ciDAE, and BuPRESTiDAE bv J. M. Swaine ; Carabidae and Silphidae 



