Plant Sanitation. 



224 



[March, 1010. 



they may be trapped by placing boxes 

 of fermenting vegetable matter in the 

 garden. The insects flock to the warm 

 retreat and may be periodically des- 

 troyed. 



Chittenden, P. A.—" Control of the 

 Mediterranean Flour Moth by Hydro- 

 cyanic-Acid Gas Fumigation," 1909. 



Describes extensive (and apparently 

 successful) operations in freeing flour 

 mills from this troublesome pest. 



FULLAW4Y, David T.— " Insects of 

 Cotton in Hawaii," 1909. 



Gives particulars of all the principal 

 enemies of the Cotton plant in the 

 Hawaiiam Islands, with directions for 

 remedial treatment. Many of the species 

 here described occur also in Ceylon. 



Hunter, W. D. — "Hibernation of the 

 Mexican Cotton Boll Weevil." U. S. De- 

 partment of Agriculture, Bulletin No. 87 

 (Bureau of Entomology), 1909. 



Describes the conditions favourable to 

 the hibernation of the insect, and re- 

 commends " the destruction of stalks in 

 the fall, as long as possible before the 

 normal hibernation time." 



Webb, J. L. — "Some Insects Injurious 

 to Forests. The Southern Fine Sawyer," 

 U. S. Department of Agriculture, Bureau 

 of Entomology, Bulletin No. 58, Partiv, 

 1909. 



The insect in question is Monohammus 

 titillator, one of the Longicorn beetles. 

 It attacks felled or injured pine trees, 

 ruining the timber. Approximately 25 

 per cent, of the lumber in each log 

 infested by the ' sawyer ' is seriously 

 damaged." The larvae at first live in 

 and feed upon the soft inner bark. 

 During this stage, damage to timber 

 may be prevented by stripping off the 

 bark. Immersing the logs in water kills 

 the insects after they have entered the 

 wood. 



Pratt, H. C. — " Notes on Termes 

 Oestroi and other species of Termites 

 found on Rubber Estates in the Federated 

 Malay States," 1909. Department of 

 Agriculture, F. M. S. s Bulletin 1, 1909. 



A general description of the commoner 

 Termites of the F. M. S., with special 

 observations on Termes gestroi. The 

 key to the determination of the species, 

 on page 4, is rather too vague to be of 

 much assistance to anyone outside the 

 country concerned, but may possibly 

 suffice for purposes of differentiation, for 

 persons who are in a position to examine 

 the living insects on the spot. 



PRATT, H, C— " Observations on 

 Termes Oestroi as affecting the Para 

 Rubber Tree, and Methods to be em- 



ployed against its Ravages." Depart- 

 ment of Agriculture, F, M. S,, Bulletin 

 3, 1909. 



Gives useful directions for eradicating 

 the insects when present, and for safe- 

 guarding the trees in unattacked areas. 



Sanders, J, G.— " Catalogue of Re- 

 cently Described Coccidse— II." U. S. 

 Department of Agriculture, Bureau of 

 Entomology, Tech. Ser.„ No. 16, Part III. 



Mr. Sanders has taken up the useful 

 task of supplementing the invaluable 

 "Catalogue of the Coccidae of the 

 World" published by Mrs. Fernald in 

 1903. A very large number of new 

 species has been discovered ani des- 

 cribed since that date. Mr. Sanders 

 brought out his first supplementary 

 catalogue in 1906, The author " believes 

 the list (now published) to be quite com- 

 plete to March, 1909, and asks the assist- 

 ance of co-workers in adding references 

 which may have been overlooked." 



Sanders, J. G.— "The Euonymus 

 Scale (Chiotiaspis e,uonymi, Comst.)". 

 U. S. Department of Agriculture, Bureau 

 of Entomology, Circular No. 114, 1909. 



"The most serious enemy of the 

 various species and varieties of Euony- 

 mus in the eastern United States." The 

 circular specifies the various host plants 

 and the distribution of the insect. A 

 well-illustrated description of the species 

 follows, and is supplemented by full 

 directions of remedial treatment. 



Hopkins, A. D.— "Insect Depredations 

 in North American Forests." U. S. 

 Department of Agriculture, Bureau of 

 Entomology, Bulletin No. 58, Part 

 V., 1909. 



The present bulletin ser ves as a sum- 

 mary of facts and results given in the 

 several previous circulars by the same 

 author on the same subject. 



Swezey, O. H.— " Army Worms and 

 Cut Worms on Sugar Cane in the 

 Hawaiian Islands." Div. of Entomology, 

 Bulletin No. 7, 1909. 



Describes, with excellent illustrations, 

 eight species of Army and Cut worms out 

 of the thirty-five species known in the 

 Hawaiian Islands. Some very interest- 

 ing facts are brought out in the section 

 dealing with natural enemies. The 

 author finds that one kind of Tachinid 

 fly, instead of the usual method of lay- 

 ing its eggs in or on the body of the 

 caterpillar, deposits them upon the 

 leaves of the food plant. These eggs 

 are then eaten by the caterpillar, and 

 develop into maggots in its intestinal 

 canal. 



