282 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



.09 inch bigh, and .055 to .06 inch in diameter. It dift'ers from the gall on Acer dasy- 

 carpum further in having scattered unicellular hairs growing from the outer surface. 

 There is a tuft of pubescence over the opening beneath. The walls are rather thick, 

 with numerous folds projecting into the cavity. The color is at times of the same 

 dark hue as the leaves or it may be light yellowish-green. The gall occurs sparingly 

 on shade trees at Normal, 111., and young forest trees in the neighborhood of 

 Bloomington are sometimes badly galled. The egg, young, and adult of the mite 

 have been found in the galls in June and July. 



The following insects also occasionally prey upon the elm : 



Lepidoptera. 



62. Parorgyia clintonii G. and E. "Found by dozens on the elm." (Fer- 



uald.) 



63. Parasa chloris H. S. (Elliot and Edwards. Papilio, iii, p. 128.) 



64. Ralesidota caryce (Harris.) (Beutenmiiller. Ent. Amer., vi, p. 16.) 



65. Ichthyura americana (Harris.) Ohio. (Pilate, Papilio, ii, p. 67.) 



66. Datana ministra Riley. Ohio. (Pilate, Papilio ii, 67.) See Hickory 



insects. 



67. Edema alhifrom (Abb. Sm.) On elms in Canada. (Reed, Can. Eat., 



XV, p. 204,) See p. 152. 



68. Schizura ipomece Doubl. (Elliot.) 



69. Platysamia cecropia (Linn.) Eiley. 



70. Telea polyphemus Hiibner. See p. 161. 



71. Tolype velleda (Stoll). See p. 165. 



72. Apatela occidentalis G. and R. (Faxon, Psyche, ii, p. 35.) 



73. ^acles imperialis (Drury.) 



74. Hyperchiria io (Fabr.) 



75. Zeuzera aesculi (Linn.) Boring in the trunk. (J. B. Smith iu Gar- 



den and Forest, Jan. 15, 1890.) 



76. Gharada deridens Guen. See. p. 166. 



77. Paraphia unipunctaria (Hawortb.) See p. 185. 



78. Hihernia tiliaria Harris. Female moth issued in liecember (Riley MS. 



notes). See Linden insects. 



79. Metanema quercivoraria Guen6e. See p. 182. 



80. Petrophora diversilineata Hiibner. (Riley MS. l!5"otes). See Oak in- 



sects, p. 189. 



81. Nephopteryx iindulatella Clemens. 



82. Nephopteryx? ulmi-arrosorrella Clemens. 



83. Lophoderus triferanus (Walk.) See p. 195. 



84. Bactra f argutana Clem, (also on sumach, witch-hazel, and black- 



thorn.) 



35. Lithocolletis argentinotella Clem. Larva makes a tentiform mine in 

 the under side of the leaves ; rarely in the upper side. (Cham- 

 bers.) 



86. Lithocolletis ulmella Chamb. Larva makes a flat mine in the upper 

 side of the leaf. (Chambers). 



