754 REPORT OF NATIONAL MUSEITAI, 1891. 



Charles V. Riley. The PedicuU and Mallophwja Jilicctiug man ami the lower ani- 

 mals, by Prof. Herbert Osborn. 



TT. S. Department of Agriculttire, Division of Entomology, Bulletin 7. AVashiugton, ^\pril. 1891. 

 Contains letter of submittal by C. V. Riley (p. It), and an illustrated review of the parasite 

 mentioned by Herbert Osborn. The following are described as new: Hmmatopinus sciurop- 

 icri.s (pp. 23, 24) ; iZ". aniennattM (p. 25) iH. /icspcrom.f/rfi.s- (p. 26) ; H.suturaliis (p. 27) ; Hcematop 

 inoides, nov. gen. (p. 28) ; Hcematop in oid ex sfni.amMsuti (pp. 28, 29) ; all of the family Fedindidce, 

 and Tnchodectes rieomydis (p. 54) of the family Phitoptcridce. 

 Charles V. Riley. The Boll-worm of cotton. A report of proj;re8s in a supple- 

 mentary investij^ation of this insect. Made nnder the direction of the Entomol- 

 ogist, by F. W. Mally. 



JJ. S. Department of Agrieulture, Division of Entomoloij;/, Bulletin 24, Washington, May, 1891. 



Contains letter of submittal (p. 3), and introduction (pp. .5, 6), by C.V.Riley. The report 



itself on the Boll-worm of cotton, by K. W. Mally. has the following cliapters: Destructive- 



ness (pp. 14-25); Kumber of broods and hil)crnation (pp. 25-27) ; Natural enemies (pp. 27, 28) ; 



Insect ravages easily mistaken for those of the Boll-worm (pp. 28-31); Remedies (])p. 31-45) ; 



Insect diseases (pp. 48-50). 



Charles V. Riley. Reports of observations and experiments in the ]iractical work 



of the Division made under the direction of the Entomologist. 



U. S. Dejtartment of AgricuU^ire, Division of Entomology, Bulletin -23. ^^'ashington, May, 1891. 

 Contains the following: Letter of submittal hy (J.V.Riley (p. 5) ; Introduction l:y ('. V. 

 Riley (pp. 7, 8) ; Report on Nebraska insects by Lawrence Bruner (pp. 9-18) ; Report on various 

 methods of destroying scale insects, by D. W. Coquillett (pp. 19-36); Report of experiments 

 with the resin compounds on Phylloxera, and general notes on California insects, by Albert 

 Koebele (pp. 37-44) ; Entomological notes for the soas<m of 1890, by Mary E. Murtfeldt 

 (pp. 45-56); Report on work of the season, by Herbert (Isborn (pp. 57-62) ; Report on some of 

 the insects affecting cereal crops, by E. M. Webster (pp. 6!-79). 



Charles V. Riley. Destrnctive locusts. A popular consideration of a few of the 

 more injurious locusts (or "grasshoppers") of tlie United States, together with 

 the best means of destroying them. 



U. S. Department of Agriculture, Division of Entomology, Bulletin "ib, Washington, May, 

 1891. 



Contains the following titles: Letter of submittal (p. 5); Introdiiction (pp. 7, 8) ; The 

 Rocky Mountain Locust (Galoptenus spretus Thomas) (pp. 9-26); The lesser migratory Lo- 

 cust (Caloptenus ofiiin is Riley) (pp. 26,27); The non-migratory red-legged Locust (Caloptenus 

 femur-rubrum Harr.) (pp. 27,28); The California devastating Locust (Caloptenus devastator 

 Sciidd.) (pp. 28-30); The dittereutial Locust (C'o/op«eHMS differentialis 'l\\o%.) (pp. 30, 31); The 

 two-striped Locust {Caloptenus bivittatus Scudd.) (pp. 31,32); The pellucid Locust (Camnula 

 pelhicida Scudd.) (pp. 32,33); The American Ac'ridium {Schi>itocera americana Scudd.) (pp. 33, 

 34) ; Remedies and devices for the destruction of Locusts (pp. 34-60). 

 Charles V. Riley. Condensed information concerning some of the more important 

 insecticides. 



17. .S'. Department if Agrieulture, Diviyion if Entomology, Circular 1, Second Series, May, 

 1891, pp. 1-7. 



Short directions for preparing and applying the following insecticide substances : Kerosene 

 emulsion, resin washes, London purjile, and white arsenic. 

 Charles V. Riley. The Hop Plant-louse and the remedies to be used against it. 



U. S. Department of Agriculture, Division, of Entomology, Circular 'J, Second Series, June, 

 1891, pp. 1-7. 



A brief summary of the life-history of Phorodon humuli; the measures available for its de- 

 struction; formulas for kerosene emulsions and tishoil soap; the best spraying apparatus. 

 Charles V. Riley. Report of the Entomologist. 



Report of the Secretary of Agriculture, 1890, pp. 237-264, \A. i-vii. 



Contains the following titles: Introduction giving a summary of the work and publications 

 of the Division of Entomology (pp. 237-239) ; The Boll- worm investigation (pp. 240, 241) ; The 

 Army Worm (pp. 242-244) ; The bronzy Cut-wurm (Larva of Nephelodes violans) (pp. 244- 

 246); Additicmal notes on the Horn-fly (Heematohia serrata) (pp. 246-249); Some new Icoryas 

 (pp. 250, 251); Experiments against the Bhick Scale {Leeanium olece Bernard) (pp. 251-253) ; 

 The green-striped Maple Worm (Ani.'.ota rubicunda Fabr.) (pp. 253-255) ; A new Peach Pest 

 (Geratitis capitata Wied) (pp. 255-257); Tlie Rose Chafer (Macrodaclyhis subspinosus Fabr.) 

 (pp. 257-261); The work of tield agents (pp 261-264). 



