Insect Galls. 4:? 



Acer spicatum. 

 Eriophyes spicati, n. s. White frost gall of mountain maple. 



Without scientific name, Garman, Psyche, L892, v. 6, p. 242. 

 Eriophyes, sp., Jarvis, 37th ami. rept. Ent. soc. Ontario, 1906, p. 62. 



The clusters of these galls are formed commonly in the angles of the 

 veins on the under side of the leaf. Small, white. On mountain maple, 

 Acer spicatum. Common. Russell and Mt. Holyoke, Mass. 



BALSAMINACEAB. 

 Impatiens biflora. 

 Cecidomyia impatientis Osten Sacken. Touch-me-not gall. Fig. 85. 



Cecidomyia impatientis Osten Sacken, in Loew's Mon. dipt. N. A. 1862, pt. 1, p. 204. 

 Walsh and Riley, Amer. ent., 1869, v. 2, p. 63, fig. 42. 

 Beutenmiiller, Ins. galls vicin. N". Y., 1904, p. 30, fig.; Bull. Amer, mus. 

 nat, hist., 1907, v. 23, p. 392, pi. 16, fig. 7-8. 



Polythalamous, spherical, smooth, juicy galls, apparently formed at 

 base of flower. P^xtremely perishable. 5-8 mm. in. diameter. Green, 

 with darker markings occasionally. August on Impatiens }>ijh>rn. 

 Abundant but local. Larvae leave galls to pupate about September 1. 



Lasioptera impaUentifolia Felt. Midrib gall on touch-me-not. Fig. 86. 



Without scientific name, Jarvis, 37th aim. rept. Ent. soc. Ontario, 1906, p. 69. 



Lasioptera impatientifolia Felt, 22nd rept. ins. X. Y. f. 1906, 1907, p. 105-106; 23d rept. ins. X. Y. 



f. 1907, 1908, p. 320, 323, 324, 327. 

 Cecidomyia impatientis Cook, Ohio nat., 1904, v. 4, p. 140, fig. 115. 



On petiole or midrib, on both sides. 1 cm. long, 4 mm. wide. Green, 

 smooth, monothalamous, containing several larvae. On Impatiens biflora. 

 Common. 



RHAMNALES. 



VITACBAE. 

 Vitis. 

 Phylloxera vitifoliae Fitch. Grape phylloxera gall. 



Pemphigus vitifoliae Fitch, Trans. N. Y. state agr. soc. f. 1854, 1855, v. 14, p. 862. (l*t rept. ins. 



N. Y., 1855) 

 Byrsocrypta vitifoliae Walsh, Proc. Ent. soc. Phil., 1862, v. 1, p. 305. 

 Phylloxera vastatrix Planehon, Compt. rend. Acad. sci. Paris, 14 Sepr-. 1868. 



Walsh and Riley, Amer. ent., 1869, v. 1, p. 248, fig. 184; v. 2, p. 61. 

 Phylloxera vitifoliae Riley, 3d rept. ins. Mo., 1871, p. 84-116, fig. 39-40. 

 Phylloxera vastatrix Riley, Repts. ins. Mo.: 4th, 1872, p. 55-70; 5th, 1873, p. 57-73; 6th, 1S74, p. 30- 



86; 7th, 1875, p. 90-121; 8th, 1876, p. 157-168. Numerous figures. 

 Phylloxera vastatrix Saunders, Can. ent., 1882, v. 14, p. 121-128, fig. 14-19. 

 Smith, Econ. ent,, 1896, p. 128-130, fig. 

 Cook, 29th ann. rept. Dept. geol. and nat. res. Indiana f. 1904, 1905, p. 855 



856, fig. 46-47. 

 Jarvis, 37th aim. rept. Ent. soc. Ontario, 1906, p. 65. 

 (The foregoing eites tout few of the accounts of this insect so very destructive to the 

 vineyards of southern Europe. The European bibliography would itself fill a good-sized 

 volume.) 



A small rough gall on either side of the leaf, usually, when present, in 

 vast numbers. Another generation forms galls on the roots, causing con- 

 siderable damage, especially in Europe. Common on wild and some 

 cultivated grapes. 



