662 EXPEEIMEKT STATION RECORD. 



Oil some cdccid pests of economic importance, E. E. Green {Jour. Econ. 

 Biol., 5 (1910), No. 1, pp. 1-8, pis. 2). — Five species are discussed in tliis paper, 

 namely Aspidiotus oceanica, which is stated to be the source of enormous injury 

 to coconut palms in the Caroline Islands; Asterolecanium piistulCDts sci/chcl- 

 larum n. var., which occurs on Hevea brasiUeiisis in the Seychelle Islands, but 

 is somewhat checked by a fungus parasite: Eriococcus paradoxuK ; Ccrococcus 

 indicKS n. sp., a pest of some importance in the forests of the Siwaliks, India ; 

 and Lecanium itnbricans, which attacks Ficus glomcraia, F. iiifcctorid, and the 

 red cedar {Cedrela toona) in the district of Balur, India. The last-named 

 species covers the miderside of the branches and forms a dense silvery-white 

 mass which rapidly kills the branches attacked and finally the whole tree. The 

 scale is accompanied by a sooty fungus which grows in great quantities on the 

 plants below and this rapidly kills out coffee. 



On 2 new species of African coccidae, R. Newstead {Jour. Econ. Biol., 5 

 {1910), No. 1, pp. 18-22, figs. 2). — Hcmilecanium rcciirvatum from hollow 

 branches of Plectronia laurentii, and Siictococcus formicariits from hollow 

 branches of Barteria fistulosa, near Stanleyville, Upper Congo, are described as 

 new. The latter species is said to be attended by an ant, Sii)ia f^pininodn. 



A louse from Orycteropus afer, and a new variety of Amblyomma, E. G. 

 Neumann iJalirb. Nassau. Ver. Naturlc, t>'2 {1909), pp. 2-6, pi. 1). — A new 

 louse collected in German West Africa from 0. afcr is described as Hwmato- 

 pimis notophallHs; a tick collected from a rhinoceros in British East Africa as 

 Amblyomma hcbrwum magnum n. var. 



Experiments and observations on the development of Trypanosoma lewisi 

 in the rat louse Haematopinus spinulosus, V. S. II. Baldkey {An-h. I'rolistcnk.. 

 15 {1909), No. 3, pp. 326-332, figs. 2; Jour. Trap. Tct. Hci., 5 {1910), No. 1, pp. 

 101-105, figs. 2). — The author concludes that a cycle of T. lewisi occurs in the 

 rat louse (//. spinHlosiis) which takes from 8 to 10 days. The incubation 

 period in the rat is from 3 to 5 days, at the termination of which time mature 

 trypanosomes may be recognized in the blood. 



The plume moths of Ceylon, T. B. Fletcher {8polia Zcyhinica, 6 {1909), 

 No. 21. pp. 1-39. pis. 6). — Part 1 of this work, which appears in this number, 

 is devoted to the PterophoridiTp. A synoptic table of the genera and tables for 

 the separation of the species of PteropboridiTe occurring in Ceylon are included. 

 Eight forms are described as new to science. 



" Of the 37 species enumerated, 12 or 32 per cent are at present only known 

 from Ceylon, 17 or 46 per cent are wide-ranging forms which occur in at least 

 2 other localities, 4 or 11 per cent have only been found hitherto in the Khasi 

 Hills, Assam, and Java, India, the South Indian Hills, and Australia each 

 pi'oduces one species which is only known otherwise from Ceylon." 



Keport of the field work against the gipsy moth and the brown-tail moth, 

 D. M. Rogers and A. F. Burgess ( f7. S. Dcpt. Agr., Bur. Ent. Bui. 87, pp. 78, 

 pis. 12, figs. 22, map 1). — In this bulletin the authors present a comprehensive 

 account of the methods followed and the work accomplished, exclusive of the 

 efforts made to import and acclimatize the European and Japanese parasites, 

 in combating the gipsy and brown-tail moths. 



The first part of the report takes up briefly the history, life history, habits, 

 and similar data regarding these pests, and the progress of the state work in 

 Massachusetts from 1890 to 1900. Then follows an account of the work which 

 was again taken up by the States of Massachusetts and Maine in 1905, by 

 Rhode Island and Connecticut in 1906, and by New Hampshire and this De- 

 partment in 1907. At the time the work on the gipsy moth was abandoned 

 by the State of Massachusetts in 1900, over $1,000,000 had been spent in an 

 attempt to exterminate the pest. Since the work was resumed in 1905, nearly 



