42 Bulletin 2: Springfield Museum. 



eter. Color as of the root, orange with traces of green. Pithy, soft. 

 Contained small white larvae Sept. 1907. Cells well filled. 



ACERACBAE. 

 Acer saccharinum. 

 Eriophyes quadripedes Shimer. Silver maple mite-gall. 



Vasates quadripedes Shimer, Trans. Amer. ent. soc, 1869, v. 2, p. 319. 



Phytoptus quadripes Garman, 12th rept. state, ent. 111., 1883, p. 135; Psyche, 1892, v. 6, p. 243. 



Packard, 5th rept. U. S. ent. conim., 1890, p. 422-423, tig. 154-155. 



Cook, Ohio, nat. 1902, v. 2, fig. 10; 1903, v. 3, p. 423, fig. 43. 

 Eriophyes quadripes Cook, 29th ann. rept. Dept. geol. and nat. res. Indiana f . 1904, 1905, p. 860. 



Jarvis, 37th ann. rept. Ent. soc. Ontario, 1906, p. 59, pi. F, fig. 1. 



A small gall, pouch-like with constricted neck, on upper side of the 

 leaf. Green, becoming dark violet and black. Common on silver maple, 

 Acer saccharinum. 



Acer rubrum. 



Cecidomyia ocellaris Osten Sacken. Maple spot-gall. 



Cecidomyia ocellaris Osten Sacken in Loew's Mon. dipt. N. A., 1862, pt. 1, p. 199. 

 Sciara ocellaris Comstock, Kept. Conim. agric. f. 1881 and 1882, (1883). p. 202-204, pi. 17. 



Packard, 5th rept. IT. S. ent. comni. 1890, p. 411-412, pi. 38. 



Beutenmiiller, Bull. Amer. mus. nat. hist., 1892, v. 4, p. 273. 



Cook, Ohio nat., 1904, v. 4, p. 141, fig. 119; 29th ann. rept. Dept. geol. and nat. 

 res. Indiana f. 1904, 1905, p. 843, fig. 35. 

 Sciara ocellata Beutenmiiller, Ins. galls vicin. N. Y., 1904, p. 33, fig. 

 Cecidomyia ocellata Jarvis, 37th ann. rept. Ent. soc. Ontario, 1906, p. 66, pi. E, fig. 6. 



An eye-like spot, red center surrounded by yellow or green and this by 

 red, 7 mm. in diameter, more or less. Larva probably drops to the 

 ground to transform. Very common on leaves of red maple, Acer rubrum. 



Acer saccharum. 

 Eriophyes crumena Riley. 



.Icarus accris-cruiueiia Riley, Amer. ent., 1870, v. 2, p. 339. 

 Phytoptus acericola Garman, 12th Kept, state ent. 111., 1883, p. 135. 



Packard, 5th rept. U. S. ent. comm. 1890, p. 424. 



Cook, Ohio nat., 1902, v. 2, fig. 11 ; 1903, v. 3, p. 423, fig. 45; 1904, v. 4, p. 118. 

 Without scientific name, Buekhout, Proc. Amer. assoc. adv. sci. f. 1882, 1883, v. 31, p. 475. 

 Eriophyes acericola Cook, 29th ann. rept. Dept. geol. aud nat. res. Indiana f. 1904, 1905, p. 860. 

 Jarvis, 37th ann. rept. Ent. soc. Ontario, 1906, p. 59. 



A tapering small gall on the upper side of the leaf. About 5 mm. long. 

 Green or red. On sugar maple, Acer saccharum. 



Eriophyes rosea. Schult. Eed frost gall of maple. 



Eriophyes, sp., Jarvis, 37th ann. rept. Ent. soc. Ontario, 1906, p. 61, pi. B, rig. 1. 



These galls look like red frost on the upper side of the leaf, where they 

 form clusters extending in the general direction of the smaller veins. An 

 occasional solitary one shows a distinct pouch shape, somewhat constricted 

 at the base. On sugar maple, Acer saccharum. Common. 



I fndelermined gall. 



This gall consists of enlargement of the veins, swollen and fleshy below, 

 opening by a slit above. Of very irregular length. Gaping widely when 

 old. Not common. On sugar maple, Acer saccharum. 



