[NSECT ( Iai.I.s. ]'> 



Tliis gall is a folding of the Leaf along the midrih with the opening 

 below, guarded by a hair-like growth. On white-heart hickory, Hicoria 

 alba. Not common. 



Phylloxera pilosula Pergande. 



Phylloxera pilosula Pergande, Proc. Davenport acad. sei., linn, v. !», p. 203-205, Ulc. 17, 49. 



Convex on upper side of the leaf, prolonged below into a long and 

 slender point, which splits into five or six parts. Covered above and 

 below with yellowish shiny hairs. 3-6 mm. in diameter, 2-3 mm. thick. 

 Not r ire on white-heart hickory, Hicoria alba. 



Hicoria glabra. 

 Phylloxera semen Walsh. 



Xerophylla caryae-semen Walsh, Proc. Ent. soc. Phil., 1867, v. 6, p. 2*3. 

 Dactylospliaera caryae-semen Walsh, 1st rept. ins. 111., 1868, p. 23. 



Shinier, Trans. Amrr. cut. soc, 1869, v. 2, p. 392-393. 

 Phylloxera caryae-semen Riley, 7th rept. ins. Mo., 1875, p. 117. 



Packard, 5th rept. 17. S. rut. comm., 1890, p. 322. 



Pergande, Proc. Davenport acad. sci., 1904, v. 9, p. 211-213, fig. 50-51. 



A small seed-like gall found by hundreds on upper side of leaf of pig- 

 nut, Hicoria glabra, Jul}'. 



FAG ALES. 

 BBTULACBAE. 

 Carpinus caroliniana. 

 Cecidomyia pudibunda Osten Sackeu. 



Cecidomyia pudibunda Osten Sacken, in Loew's Mon. dipt. N. A., 1862, pt. 1, p. 202. 



Jarvis, 37th ann. rept. Ent. soc. Ontario, 1906, p. 66, pi. 1), fig. 6. 

 Beutenmiiller, Bull. Amer. mus. nat. hist., 1907, v. 23, p. 389, pi. 13, fig. s. 



This gall consists of a fold between the larger veins of the leaf, pro- 

 jecting above, open beneath. Green becoming brown or red, 7-11 mm. 

 long, 1-3 mm. high, tapering to the surface of the leaf. On American 

 hornbeam, Carpinus caroliniana. Collected by Dr. Geo. Dimmock, Aug. 

 and Sept. 1908. 



This gall seems to be the same as Cecid. pudibunda. It is called 

 Contarinia carpini and is found on Carpinus betulus of Europe. See 

 C. Houard, Les zoocecidies des Plants d'Europe, 1908, p. 187. 



Corylus americana. 

 Eriophyes avellanae Jarvis. Hazelnut bud-gall. 



Eriophyes avellanae, Jarvis, 39th aim. rept. Ent. soc. Ontario, 1908, p. 83. 



This gall is an abortion of the terminal bud and sometimes the lateral 

 bud or buds. The stem does not develop, and the leaves become scarcely 

 more than scales. Subspherical, about 1 cm. in diameter. On hazelnut, 

 Corylus americana. Rather common. Similar to Phytoptus coryligallarum 

 Targ. of Europe. 



Eriophyes coryli n. s. Mite gall of hazelnut. 



A deformity of the leaf brought about by the excessive shortening and 

 thickening of midrib and some of the main veins, producing puckering of 



