. Annual report. New York State Museum; Science. PARK AND TREES '?93. as well as coniferous trees. He adds that it has a wide distribution in the diversified forest rei^ion of the eastern United States, and adds that it is a dangerous enemy to smooth harked trees whenever the)- become weakened, injured or shaken l)y storms. Description. This beetle is more slender ami a little smaller than Xyloterus b i \-i t t a t u s Kirby. It x-aric's in color from light brown to almost black, is cylindric in shape, about '8 inch long. The form of the antennal club, and the scu
. Annual report. New York State Museum; Science. PARK AND TREES '?93. as well as coniferous trees. He adds that it has a wide distribution in the diversified forest rei^ion of the eastern United States, and adds that it is a dangerous enemy to smooth harked trees whenever the)- become weakened, injured or shaken l)y storms. Description. This beetle is more slender ami a little smaller than Xyloterus b i \-i t t a t u s Kirby. It x-aric's in color from light brown to almost black, is cylindric in shape, about '8 inch long. The form of the antennal club, and the sculpturing of the dorsal suriace is shown in figure 55. This species and the following have divided e)es, the two divisions being some distance apart and connected only b}- a narrow, dark strip, best seen in recenth' trans- formed, light colored individuals. The galleries of this insect may extend to some depth in the wood, lateral burrows being given oft at intervals and the brood chambers occurring very close together, almost like the cells of a honeybee. The walls of the galleries and brood chambers are a deep black as in the case of allied species. The antennal structure is shown on plate 70, fio-ure 4. Natural enemies. A predaceous beetle, C o 1 \- d i u m 1 i n e o 1 a Say, has been recorded by Dr Hopkins as occurring in the burrows of this species. Another small beetle, Ips s a n g u i n o 1 e n t u s Oliv., has been found by Dr Hopkins in association with this species feeding on the sap of sugar maple. Bibliography 1891 Schwartz, E. A. Em. .Soc. Wash. Proc. 2: 77-78 1893 Hopkins, A. D. W. Va. Agric. Sta. Bui. 32, p. 176, 179, 210 1897 Hubbard, H. G. U. .S. Dep't .\gric. Div. Ent. Bui. 7. n. s. p. 28-29 1899 Hopkins, A. D. W. Va. . Exp. .Sta. Bui. 56, p. 444 Xyloterus .sp. A beetle belonging to this genus was met with by the writer at Saranac Inn, Aug. 20, 1900, in white birch, where it was working in partly dead wood. Fig. 55 Xyloterus p o- Utus. (After Hub-
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