424 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 

 65. Phytoptm acericola Garnjan. 



This mite produces galls on the leaves of the sugar maple, Acer sac- 

 charinum Wang. 



In five examples of this mite the striae were counted, and in three of 

 them numbered 30, and in the other two 28 and 29, respectively. The 

 prongs of the feather-like appendage seem to be three. The length is 

 about .0075 inch. This form was found in June both among knobbed 

 hairs and in galls on the sugar maple, but there appeared to be only 

 one species represented. 



The gall is very slender, tapers to both extremities, and bears a 

 strong resemblance in general form to the nail galls described by Prof. 

 C. V. Eiley from the leaves of Ampelopsis. The walls are uniformly 

 thin, and present no internal roughness. The height is about .19 inch, 

 and the diameter .045 inch. Phytopti were abundant in these galls 

 collected at Bloomington, III., June 22, 1881. (Forbes' Third Eeport.) 



The following insects also occur more or less constantly on the maple : 



Order Coleoptera.* 



66. Dicerca divaricata Say. Observed by Mr. F. B. Caulfield apparently 



ovipositing on a dead maple, June 12. (Can. Ent., xviii, p. 196.) 



67. Chrysobothris femorata Lee. 



68. Molorclms binaculaius Say. Bred from a small twig of a young 



wild maple. (Chittenden in letter.) 



69. Xylotrechus colonus Fabr. (See Oak Insects, p. 77.) Found by Mr. 



G. Hunt under the bark of an old sugar maple in northern New 

 York. 



70. Saperda tridentata Oliv. Pupse found in a maple trunk. ( W. H. 



Harrington, Rep. Ent. Soc. Ontario for 1883, p. 35.) 



Order Lepidoptera. 



71. Edema albifrons (Abbot and Smith) Larva common on the maple 



at London, Canada. 



72. Heterocampa unicolor Pack. 



73. Heterocampa guttivitta Walk. Brunswick, Me. 



74. Callosomia promethea (Drury). 



75. Schizura ipomew Doubld. 



76. Nadata gibbosa (Abbot and Smith) Lintner. (Oontr., iii, p. 160.) 



Reed. (Rep. Ent. Soc. Ontario, 1883, 16.) 



77. Limacodes scapha Harris. (S. Lowell Elliot, MS. notes.) 



78. Umpretia stimulea Clemens. Soft maple, St. Louis. Miss Murtfeldt. 



(Bull. 13, Div. Ent, p. 62.) 



* The following occnr iu decayed maple wood and stumps: Alaus oculatus Linn., 

 (Devereaux, MS. notes); Osmoderma scahra Beauvois (Devereaux, MS. notes); 

 Pyrochroa flabellata Fabr., Pyrochroa femoralis Lee. 



