Fig. 16. 



54. Stenoscelis brevis, Boh., is a small blackish beetle found boring in poplar and 

 maple, but does not probably do much injury. It belongs to the family Calandridae. 



55. Eupsalis minuta,' Drury, is a peculiar long- 

 snouted beetle belonging to the family Erenthidse, of 

 which it is the sole Canadian representative. Fig. 1 6 

 shows the insect in its different stages. It has a 

 cylindrical body ; thorax egg-shaped and tapering gra- 

 dually to the head, which is prolonged in a straight 

 snout, hardly as long as thorax ; beak of female 

 slender with very small jaws, that of male heavier 

 with strong curved jaws. Smooth and glossy ; 

 brown, with broken yellow lines on wing- covers. 

 Size extremely variable, from one quarter to seven- 

 eighths of an inch. The larvae of this beetle bore in 

 various kinds of oaks, usually in felled trees or stumps, 

 burrowing, it is stated, in all directions through the 

 heart wood. On 22nd May, 1882, I obtained about 

 twenty beetles from under the bark of a large fallen sugar-maple. The larvae had appar- 

 ently lived chiefly on the inner layers of the bark and on the sap wood. On another oc- 

 casion I found specimens emerging from a maple stump. 



The following beetles are also found upon maples, but cannot do much injury, 

 except, perhaps, the last two, should they become very abundant. 



56. Cucicjus clavipes — Fab. A brilliant, flat, pinkish beetle, found with its larvae, also 

 flat, under bark of various dead trees, especially birch and elm, occasionally of maple. 



57. Alaus oculatus, Linn. Larva, inhabits decaying wood of 

 various trees. Fig. 17 represents the well-known beetle. 



58. Corymbites sulcicollis, Say. Beetles found in crevices of 

 bark or under loose portions of large sugar maples ; rare. 



59. Nyctobates pensylvanica, De Geer. 



60. Ipthimus opacus, Lee. 



61. Ujris Ceramboides, Linn. These three species are large, 

 somewhat flattened, black beetles, often found under loose bark of old 

 trees. The larvae live in decaying wood of various kinds. 



62. Enchodes sericea, Hald. Beetles found in old maple logs. 

 Several other species of the same family — Melandryida?, also occur 

 on old trees, probably to feed on fungous growths. 



63. Tomoxia bidentata, Say. Mordellidae. I have always 

 found these beetles on old maples or maple stumps. 



64. Pyrochroa femoralis, Sec. Beetle under bark of dead 

 trees. 



65. Corthylus punctatissimus, Zimm. Scolytidae. Stated in classification of the 

 Coleoptera of North America to depredate on maple trees. It is nearly allied to 

 Monarthrum mail (Fitch), a minute beetle which attacks apple trees. 



66. Xyloterus politus, Say. Belongs to same family, and has been reported by M. 

 Lintner attacking maples. 



Fig. 17. 



Hemiptera. 



The insects contained in this order are popularly known as bugs. They have a 

 slender jointed proboscis with which they suck the juices either of plants or animals. The 

 species are numerous, varying in size from the Aphides — tiny "lice" feeding upon plants 

 — to the great Belostoma, a rapacious water-bug, preying even upon small fish. Although 

 some kinds of trees are attacked by many species of bugs, the maples seem to be more 

 liavored, and to have but few hemipterous depredators. I have only found the following 

 species recorded :— 



67. Pulvinaria mnumerabilis, Rathvon. This is a species of scale-insect or bark- 

 . which of recent years has been found badly infesting maple trees in many portions 



