Coleoptera He 
at least a year; and some of the tunnels were evidently several years old. The 
tunnels of this species are slender, elongate, winding, more or less longitudinal 
upon the surface, scoring the wood, then entering the wood through an oval 
hole to continue below the surface for two or three inches. The pupal period 
is passed m this tunnel and the adult emerges eventually through a round exit 
hole. The larvae of this species had evidently been heavily parasitized, for 
many empty cocoons of a hymenopterous parasite were attached to the tunnels 
beneath the bark. One dead adult beetle was found in an exit tunnel just below 
the wood surface. 
Genus Xylotrechus Chevr. 
Xylotrechus undulatus Say. 
Long's Expedition, II, p. 291, 1820; Leng, Ent. Am., II, p. 200. 
Length of the elytra, 1 cm.; width of pronotum, 4 mm.; length of pronotum, 
3.5 mm.; colour dark brown with the transverse markings yellowish white; 
pronotum with apical band interrupted only at median line, caudal band feebly 
indicated on the sides, sides of pronotum grayish from superimposed fine gray 
hairs; elytra with basal line feeble, discal spot strong, median transverse line 
strong and continued along the suture and side margin forward nearly to the 
base. The subapical transverse line strong complete (this line almost invariably 
interrupted in the middle in our collection of over 60 specimens) apical marking 
strong; longitudinal grayish tracings very faint. One specimen below Sandstone 
rapids, Coppermine river. Northwest Territories, February 15, 1915; F. Johansen, 
collector. 
One specimen was removed in fragments from tunnels in the wood of a white 
spruce; it had been working in a dead patch on a living tree. A second specimen 
found in the same stick is lighter brown, and lacks the longitudinal grayish 
markings. 
Cerambycid tunnels which may be those of Xylotrechus undulatus are 
numerous in a part of a branch dying at the time of collection. The surface 
tunnels are wide and flat, scoring the wood, and filled with frass, freely winding, 
and very irregular in width. They eventually enter the wood through an oval 
hole, penetrate to the centre of the branch and continue longitudinally for 
about two inches. In this last portion the larvse pass the winter. There were 
no exit holes. 
Monochamus tunnels, probably those of scutellatus, were on the large stick. 
Two larv£e had entered the wood but neither of them emerged. There were 
no adults in the collection. 
Other Northern Records in our Collection. 
Monochamus scutellatus Say. 
Fort Cudahy, Yukon Territory, 25-VIII-96, W. Ogilvie, collector. Id', I9 ; 
Upper Stewart river, Yukon Territory, Jos. Keele, collector, 1881, 1905, I9 ; 
Rampart House (18 miles south), Yukon Territorv, D. A. Nelles collector; 
Yukon Territory, lat. 62° 31' to 63° 06' N., long. 137° 20' to 129° 30' W., 2 d's, 
D. D. Cairnes, collector; Fort Chipewyan, Alta., June 23, 1914, F. Harper, 
collector; Hudson bay, 1887, J. M. Macoun, collector, 2 9's. 
Pachyta liturata Ky. 
Dawson, Yukon Territory. 
