23 



Phylloxera vastatrix Planch., xiv, 7; 



xxi, 86. 

 Chermaphis abietis Kalt., xx, Appendix, 

 XIX (Chermes), 



coccineus Cholodk., xx,. Appendix, XIX 

 (Ch ermcs). 



lapponicus Cholodk., xx. Appendix, 

 XIX (Chermes). 



pini Koch, xx. Appendix, XIX (Cher- 

 mes). 



pinicorticis Fitch, xvii, XIII (Cher- 

 mes) ; xx. Appendix (Chermes). 



sibericus Cholodk., xx, Appendix, XIX 

 ( Cher in es ). 



strobilobius Kalt., xx, Appendix, XIX 

 ( Chermes). 



viridis Ratz., xx. Appendix. XIX 

 ( Chermes). 

 Geoica, xviii, 101. 



carnosa Buckt.. xviii, 101 (Endcis). 



setarias Pass., xviii, 101. 



squamosa Hart. n. gen. et sp.. xviii, 

 53, 57. 98; xxiii. 267. 

 Hormaphis, xviii, 101. 

 Pemphigus betas Doane, xxi, 52, 159. 



boyeri Pass., xiii, 40. 

 Toxoptera graminum Rond., xiii, 40; 



xvii. X : xxiii, 134, 266. 

 Schizoneura, xiii, 52. 



corni Koch, xiii. 40: xviii. 57. 86, 89. 



lanigera Hausm.. xvii, XIII ; xxii, 99. 

 100. 104. 106. 



panicola Thorn., xiii, 42, 49, 51 ; xiv, 

 28, 29: xvii. 65 (corni); xviii, 53, 

 57, 68, 85 ; xxiii. 267. 



rileyi Thorn., xiv, 114. 



venusta Pass., xiii, 52. 

 Chaitophorus. xiii, 42. 



negundinis Thorn., xxiii, 210. 

 Sipha flava Forbes, n. sp.. xiii. 42. 50, 53, 

 54 (Chaitophorus flavus) : xiv. 70 

 (Chaitophorus flavus) ; xviii. 70. 72 

 (Chaitophorus flaws) ; xxiii. 210. 

 267 (Chaitophorus flavus). 



maydis Pass., xiii, 40. 



sp., xiii, 40. 

 Aphis atriplicis Linn., xxi. 82. 



chloris Koch, xiii. 100. 



gossypii Glover, xxi, 81. 



maidiradicis Forbes, n. sp., xiii, 9. 11. 

 46 (maidis, in part) : xiv. 23 (mai- 

 dis. in part) : Misc. Ess., 24. 46, 117 

 ( maidis. in part): xv. 5 (maidis): 

 xvi, XII (maidis, in part) ; xvii, 64; 

 xviii. 4, 5. 52. 53. 56. 57, 58, 85, 104; 

 xxii. 146: xxiii, 2. 4. 9. 12. 69. 125. 

 156, 266: xxiv. 8. 



maidis Fitch, xiii, 9. 11. 40, 41. 42. 46. 

 53 (in part) ; xiv, 23 (in part) ; 

 Misc. Ess.. 24. 46. 117 (in part); 



xvi, XII (maidis, in part) ; xvii, 64; 

 xviii. 57, 69, 74. 82: xi\. 85; xxiii, 

 2. 3, 9, 10, 12, 123, 156, 266. 

 mali Fabr., xviii, 9; xiv, 28. 98 (mali 

 and malif olice) ; xvii, 68; xxii, 127; 

 xxiii, 127. 

 middletonii Thorn., xxi, 80. 159. 161. 

 prunicola Kalt.. xxii, 100, 104, 107. 

 spp., xiii, 62, 98, 102. 143. 

 Siphocoryne avenae Fabr.. xiii, 40 (A- 

 phis) ; xvii, IX, X, 56 (Siphoiiophora, 

 in part) ; xviii, 57 (Apliis mali) ; xix, 

 51 ( Siphoiiophora. in part); xxiii, 

 206. 266. 

 Rhopalosiphum, xiii, 46: xiv, 25. 



dianthi Schrank. xxiii. 210, 266. 

 Myzus achvrantes Monell, xviii, 56; xxi, 

 82: xxiii, 209, 266. 

 cerasi Fabr., xxii, 129. 

 Phorodon humuli Schrank, xviii, 57. 

 Macrosiphum erigeronensis Thorn., xxi, 

 83 (Neatarophora). 

 fragariae Koch, xiii, 62, 98, 103 (Si- 

 phoiiophora). 

 var. immaculata Riley, xiii, 99 (57- 

 phoiiopliora). 

 granarium Buckt.. xvii. IX, X ; xviii, 

 56 (Sipliouophora avence, in part) ; 

 xix. 51 (Siphonopliora azmcc. in 

 part) ; xxiii, 206, 266 (granaria). 

 minor Forbes, n. sp.. xiii, 62, 98, 101, 



103 (Siphonopliora). 

 pisi Kalt., xxi, 83 (Ncctarophora). 

 rosae Linn., xiii. 101 (Siphonopliora) ; 



xviii, 56 (Siphonophora) . 

 trifolii Perg., xxiii, 208, 266. 

 sp.. xiii. 42. 50, 54 (Siphoiiophora). 



Aleyrodidje 



Aleyrodes forbesii Ashm., xiii, 98 (maple 

 coccid). Addenda et Corrigenda (Alcu- 

 rodcs sp.) : xiv, 110 (aceris). 



Coccid.e 

 (xviii. 55: xxi. 56. 159; xxii. 100. 103. 



104, 112; xxiv, 44, 45) 

 Icerya purchasi Mask., xx, 22. 

 Pseudococcus solani Ckll., xxi, 161 (Dac- 

 tylopius). 

 sorghiellus Forbes, n. sp., xiv, 71 (Coc- 

 cus) ; xviii. 53, 106 (Dactylopius) ; 

 xxiii, 267 (Dactylopius). 

 trifolii Forbes, n. sp., xiv, 72 (Coc- 

 cus). 

 sp.. xviii, 56. 68, 106 (Dactxlopius) ; 

 xxi. 159, 161. 

 Pulvinaria innumerabilis Rathv., xiii, 62. 

 98; xiv. 3. 7, 103, 115; Misc. Ess., 25; 

 xvii, XII : xxiv. 100. 



