1918] ECONOMIC ZOOLOGY ENTOMOLOGY. 461 



Some insects injurious to cacao plants in the Belgian Kongo (Bui. Ent. 

 Research, S {1911), No. 1, pp. 111-118, figs. 3). — The present paper consists of 

 descriptions of a number of species new to science, collected by the government 

 entomologist in the Belgian Kongo, R. Mayne. 



[Report of the entomologist], E. A. Andrews (Indian Tea Assoc, Sci. Dept. 

 Quart. Jour., No. 2 (1916), pp. SI, 82, 87, SS).— Mention is made of the more 

 serious pests of tea. 



A preliminary list of the insects of the Province of Quebec, III, G. 

 Chagnon (Ann. Rpt. Quebec Sac. Protec. Plants [etc.], 9 (1916-17), Sup., pp. 

 161-277).— This third part (E. S. R., 34, p. 449) lists 1,810 species of Coleoptera 

 as occurring in the I'rovince of Quebec. 



Report on a collection of termites from India, Karin and N. Holmgren, 

 trans, by T. B. Fletcher (Mem. Dept. Agr. India, Ent. Ser., 5 (1917), No. 3, 

 pp. 133-171, fig. 1). — This systematic account, based upon collections made in 

 diverse parts of India by T. B. Fletcher, includes descriptions of a large 

 number of new species, one new genus, and one new subfamily. 



The second experimental campaign for the destruction of locusts in 

 Morocco by means of d'Herelle's method, H. Velu (Ann. Inst. Pasteur, 31 

 (1917), No. 6, pp. 277-290; abs. in Trop. Vet. Bui., 5 (1917), No. 3, pp. 210, 

 211). — This reports upon the results of work carried on from March to July, 

 1916, in continuation of that previously noted (B. S. R., 36, p. 857). 



A new thrips damaging orchids in the West Indies, C. B. Williams (Bui. 

 Ent. Research, 8 (1917), No. 1, pp. 59-61, fig. 1). — Under the name Physothrips 

 xanthius the author describes a new thrips which has recently caused much 

 damage to orchids grown for ornamental purposes in Trinidad. 



Observations on the cotton stainer in St. Vincent, W. N. Sands (West 

 Indian Bui., 16 (1917), No. 3, pp. 235-252, pis. 2, fig. 1; abs. in Agr. News 

 [Barbados], 16 (1917), No. 403, pp. 308, 309).— A report of studies of the life 

 history and habits and of control measures for Dysdercus delauneyi (E. S. R., 

 36, p. 654). 



Trapping of the cotton stainer (Agr. News [Barbados], 16 (1917), No. J^OO, 

 p. 267). — A brief report of experiments in the trapping and destruction of the 

 cotton stainer (Dysdercus delauneyi) in the field in St. Vincent. The cotton 

 stainers are attracted to traps of cotton seed, placed under cacao trees sur- 

 rounding silk cotton trees that have been destroyed when heavily infested with 

 the cotton stainer, and killed by means of a gasoline torch without destroying 

 the effectiveness or attractiveness of the bait of the traps. 



A revision of the genus Lygus as it occurs in America north of Mexico, 

 with biological data on the species from New York, H. H. Knight (Nciv 

 York Cornell Sta. Bui. 391 (1917), pp. 557-6J,5, pi. 1. figs. 55).— In this revision 

 the author recognizes 67 forms of Lygus of which 28 species occur in New York 

 State and 9 occur in neighboring States which will doubtless soon be found 

 within New York borders. Thirty-four species' and 11 varieties are described 

 as new. " Food plants and other biological data are given for all but one of 

 the species known to occur in this State. The present paper gives a much- 

 needed systematic revision of the group ; but the most important feature is 

 that structural characters found in the male genital claspers have been worked 

 out and shown to furnish a reliable criterion for recognition of the species." 



A bibliography of five pages is included. 



The Derbidae of the Philippine Islands, F. Muir (Philippine Jour. Sci., 

 Sect. D, 12 (1917), No. 2, pp. 49-105, pi. 1, figs. 4).— Ninety-eight species repre- 

 senting 39 genera of this family of Hemiptera are described from the Philip- 

 pines, of which 7 genera and 61 species are new. 



