INSECT DEPREDATORS UPON THE APPLE-TREE. 331 



Psenocerus supernotatus (Sat) Packard, GuiQe St. Ins., 500. 



Leptostylus aculifer (Say). Prickly Leptostylus Fitch, N. Y. Rept., iii, 8. 



Sternidius alpha (Say) Riley, Amor. Ent., iii, 270. 



Liopus facetus Say. Facetious Liopus Fitch, N. Y. Rept., iv, 65. 



Hyperplatys luaculatus Hald Riley, Amer. Ent., iii, 271. 



Oncideres ciiiirulatus (Say). Twig-girdler Id., ib. 



Saperda Candida Fauk. Round-headed ap.-tr. horer Harris, Ins. Inj. Yeg., 107. 



Saperda cretata Newm Osborn, Amer. Nat., xv, 244. 



Glyptoscelis crypticus (Say). Cloaked Chrysomela Fitch, N. Y. Rept., iii, 18. 



Diabrotica vittata (Fabr.). Striped cucumler-heelle Riley, Mo. Rept., iii, 6. 



Odontota rosea ( Webeu). Rosy Mispa Harris, Ins. Inj. Yeg., 120. 



Hymenorus obscurus (Say) Lintner, Count.-Gent., 1882, 605. 



Macrobasis unicolor (Kirby). Ash-grey blister-beetle Glover, Ag. Rept. for 1868,105.* 



Pomphopcea ainea (Say). Pear-tree blister beetle Riley, Mo. Rept., iii, G. 



Epica'rus imbricatus (Say). Imbricated sriout-beetle Glover, Ag. Rept. for 1870, 71. 



Ithycerus Noveboracensis (Fo^st.). New Fork weevil . .. Fitch, N. Y. Rept., iii, 13. 



Anthonomus crataegi Walsh. Thorn cur culio Rilej^ Amer. Ent., ii, 308. 



Anthonomus quadrigibbus Say. Apple curculio Walsh, Amer. Ent., i, 36. 



Conotrachelus nenuphar (Herbst). Plum curculio Harris, Ins. Inj. Yeg., 76. 



Monarthrum mail (Fitch). Apjjle bark beetle Fitch, N. Y. Rept., iii, 8. 



Xyleborus pyri (Peck). Pear-blight beetle Harris, Ins. Inj. Yeg., 90. 



Hemiptera. 



Heteroptera. f 



Nysius destructor Riley. False chinch-bug Riley, Mo. Rept., v, 112. 



Lygus lineolaris (Beauv.). Little-lined plant-bug Id., ib., ii, 114.1 



Homoptera. 



Cicada tibicen Linn. Dog-day Cicada Uh ler, iw lit. 



Cicada septendecim Linn. Seventeen-year locust Fitch, N. Y. Rept., i, 45. 



Cicada tredecim Riley. Thirteen-year locust Kiley, Mo. Rept., iii, 6. 



Ceresa bubalus (Fabr.). Buffalo 'tree-hopper Id., ib., v, 122. 



Ceresa taurina Fitch. Calf tree-hopper Fitch, N. Y. Rept., iii, 17. 



Jassus irroratus Say Uhler, in lit. 



Psylla pyrisuga Forst. Pear-tree Psylla Glover, Agr. Rept. for 1876, 33. 



Aphis rpali Fabr. Apple-tree Aphis Fitch, N. Y. Rept., i, 49. 



Aphis malifollK Fitch. Apple-leaf Aphu Id., ib., i, 56. 



Schizoneura lanigera Haus. § Apple-root plant-louse Id., ib., i, 5. 



Callipterus mucidus Fitch. Mouldy Aphis Id., ib., iii, 16. 



Aleurodes sp Walsh, Pract. Ent., ii, 58. 



Chionaspisfurfurus (FiTcn).| Scurf y bark-louse Id., ib., 31. 



Diaspisostreajformis (Curtis). ^fC^r<;M^ar6ar^•-^0tfse (Fitch) Comstock, A. R. for 1880, 312. 

 Mytilaspis pomicorticis Riley.** Apple bark-louse Harris, Ins. Inj. Yeg., 252. 



*A3 Macrobasis Fabricii. 



■fDr. Fitch, in his Third-Fifth Reports, pp. 17 and 18, nos. 24 and 26, includes among 

 insects affecting the leaves of apple-trees Anna grandis [now Podisus cynicus (Say)], and 

 Arma spinosa \Podisus spinosus], but these are now regarded as cannibals and not vege- 

 table feeders. Sinea diadema (Fa.hr.) and Milyas cinctus (Fabr.), which have also been 

 recorded among apple-tree insects, also subsist on the juices of other insects. 



JAs Capsus oblineatus Say. 



§As Pemphigus pyri Fitch. 



lAspidiotus Jlarrisii Walsh. 



^Aspidiotus circularis Fitch. 



**Atpidiot'us conchiformis, of Authors. 



