American Insect Galls: Thompson 59 



HONEY LOCUST (Gleditschia) 



52. Cecidomyia gleditschize O.'t^.dlcdilschia Iridcniilho.s cf 9 • Honey locust. Mass. Mid- 

 Aug. Makes leaflets of young leaves into i)ods, plate 14, 52. 

 Dasyne^ini gleditschia: 0. S. 



. LOCUST (Robinia) 



102. — . Robinia pseudacacia. R. L Oct. Elongated enlargement of stem, plate 



14, 102. 



EcdyloLopha insiliciana ZeU. 



LOOSESTRIFE (Lysimachia) ■ 



202. Cecidomyia. Loosestrife. Mass. Late June. Aborts stem and terminal bud of Lijsi- 

 machia quadrifolia. Summit of stem bears a bud-like body composed of inrolled; 

 thickened, broad leaves, plate 14, 202. 

 Dasyneura lysimacMce Beut. 



MAPLE {Acer) 



4. Eriophyes. Pimple gall. Acer rubrum. Mass. May. On leaf, plate 14, 4. 

 (?) Eriophyes. 

 17. Eriophyes. Crimson Cushion. Osborn '84, p. 58. Maple leaf. June, July. Mass. 



Rough crimson areas, plate 14, 17. 

 22. Phytoptus acericola. Carman Acer saccharimim. Mass. June. Gall slender and tapers 



to l)oth extremities, plate 13, 22. 

 91. Cecidomyia. Acer rubrxim, A. saccharinmn. Mass. Late June. On rib of leaf distorting 

 same above and below, plate 14, 91. 



Common, uimamed, not reared with certainty and possibly Dasyneura communis Felt. 



95. Aphididae. Acer saccharinmn. Mass. June. Irregular, woody excrescences above and 



below leaf, plate 13, 95. 

 177. Sciara ocellaris. Packard '90, p. 411-412, pi. 38. Acer rubrum. Riley Repts. Entom., 

 p. 202-204, pi. 17. Mass. May. On upper side of leaf; small, conical pustules 

 of pale yellowish, green bordered with an orange scarlet circle outwardly deepening 

 to maroon, plate 14, 177. 



Cecidomyia ocellaris O. S. 



219. Rhytisma acerinum (fungus). Acer. Mass. On leaf. 



237. Phytoptus quadripes. Packard '90, p. 422-424; Carman '83, p. 128-130. Acer dasijcarpum, 

 Mass. July. Bladder-like pouches above leaf, plate 14, 237. 

 Eriophyes quadripes Garm. 



OAK {Quercus) 



12. . Fungus. Leaves of red and chestnut-oak. Mass. Jime. Light yellow- 



grtM'u, bloated areas, often corrugated, [jlatc 15, 12. 



14. Cecidomyia niveipila. O. S. '67, p. 199-200. Q. nigra, Q. alba, Q. ilicifolia, Q. rubra, Q. coc- 



cinea. Mass. May, June, plate 15, 14. 

 The species has not been roared . 



15. . Oak-leaf. Rivet gall (sec 41), ])Iatc 15, 15). 



(?) Neuroicruts sp. 



