81 



INSECTS INJURIOUS TO PEAR. 



(Muiiy of the insects in juiMiij.;- the up])!*' will In- t'oiind ;itlacl<iiiy" the 

 pcii!-.) 



THE FRUIT-TREE BARK-BEETLE. 

 Scolylnii ruyulosns liatz. 

 For j,''(MU'nil account soo CMiittciulcn, Circ. 2'.t, l)i\. Knt., l'. S. 

 Dopt. A<,Tic., 180S. 

 Exhibit: Adult, work, and liu-ure, 



PEAR-BLIGHT BEETLE; SHOT-BORER. 



Xylchunis jii/rl Peck. 

 (Foruierl\ culled A', dispar.) 



For general account see Hubbard. Bui. 7, n. s., l)iv. P^nt., U. S. 

 Dept. Atrric. i)p. 22-:?3, ISHT. 



Exuibit: Adidt, work, and tiyuro. 



THE PEAR BLISTER MITE. 



Eriophyen pyri Pagenst. 



For detailed account see Slingerland, Bui. 01, Cornell Univ. Agr. 

 Exj). Sta., pp. 817-328, figs., 1893. 

 Exhibit: Work and figure. 



THE PEAR PSYLLA. 



P.tylla piiri Linn. 



For general accounts see Slingerland, Bui. 44, Cornell Tuix . Agr. 

 Sta., isifi; :\rarlatt, Circ. 7, Div. Ent.. U. S. Dept. Agric. ls!t5. 

 ExHiBrr: Adult and figure. 



THE PEAR SLUG. 



J'Jriommpoidr/f liiiidcina Ratz. 



(Formerly Kr'ioaunpa vcnml.) 



For general account see Marlatt, Circ. 28, Div. Ent., V. S. Dept. 

 Agric, i8!>7. 



Exhibit: Adult, work, and figure. 



THE SCURFY BARK-LOUSE. 



( 'hioiKiKjii.s fiirjiirn Fitfli. 



(Food-})lants: A})ple, cherry, currant, elm, pear, etc. See uiuler 

 •'More importiint scale insects.") 



For bibliography and food plants see Fernald, Cat. Coccichv of 

 World, Bid. ss, Mass. Agr. Coll., pp. 217-211>, i;>()3; Howard, Year- 

 book, U. S. Dept. Agric, 18t>4, pp. 25S>-261, tigs.; Banks, Bui. 34, 

 Div.. Ent., r. S. Dept. Agric, j). 14, lt»<i2. 



I'AHir.rr: Infc-^ted twiif. 



