. Report of the State Entomologist on injurious and other insects of the state of New York. arva sur-rounded by a viscid secretion. Osten Sacken 62, p. 193 Itonid. Sticky leaf spot, Caryomyia glutinosa O. S.^ Petiole or twig gallsGlobular or oval, often more or less conical, spiny or smooth, according to thetree on which they grow, and more or less confluent, diameter 5 to 25 04, p. 244 Aphid. Hickory gall aphid, Phylloxera caryaecaulis FitchGlobular, densely covered with long, fleshy filaments, diameter 5 to 15 04, p. 247 Aphid. Phylloxera spinuloides Perg. 1 The refer
. Report of the State Entomologist on injurious and other insects of the state of New York. arva sur-rounded by a viscid secretion. Osten Sacken 62, p. 193 Itonid. Sticky leaf spot, Caryomyia glutinosa O. S.^ Petiole or twig gallsGlobular or oval, often more or less conical, spiny or smooth, according to thetree on which they grow, and more or less confluent, diameter 5 to 25 04, p. 244 Aphid. Hickory gall aphid, Phylloxera caryaecaulis FitchGlobular, densely covered with long, fleshy filaments, diameter 5 to 15 04, p. 247 Aphid. Phylloxera spinuloides Perg. 1 The reference of this species to Caryomyia is provisional. 48 NEW YORK STATE MUSEUM Medium, growing in larger or smaller clusters and apparently deformations offlower and leaf buds, splitting when mature into four or more broad bracts,surface smooth, diameter 3 to 15 mm. Pergande 04, p. 248 Aphid. Phylloxera devastatrix , smooth, growing in clusters, usually with a short, stout nipplelikeprojection on one side, diameter 5 to 10 mm. Pergande 04, p. 249 Aphid. Phylloxera georgiana Fig. 48. Cecid-o m y i a sp. Budgall on Corylus,ai737- (Original) Fig. 49. Spiny witch-hazel gall aphid, H a m a m e -listes spinosus Shim. Pseudo galls on birchleaves. (After Pergande) Large, oval, smooth, growing on the petioles, a slight, central depression coveredwith short hairs, length 20 mm, diameter 10 mm. Pergande 04, p. 250 Aphid. Phylloxera subelliptica or irregular, terminating in a toothlike nipple and occurring on tendertwigs, petioles or ribs of leaves, often confluent, smooth, diameter 2 to 8 04, p. 251 Aphid. Phylloxera perniciosa , petiole or midrib gall, a transverse slit dividing the gall into twohalves, diameter 2 to 15 mm. Pergande 04, p. 257 Aphid. Phylloxera caryaeren Ril. KEY TO AMERICAN INSECT GALLS 49 Swellings in husksIrregular swellings in the husks, produced by pale reddish larvae. Osten Sacken 70, p. 53 Itonid. Hickory husk m
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