ro THE CANADIAN ENTOMOLOGIST. 
obliquely and excavated, with the external edge of the excavation armed 
with four denticles, of which the second and third are the largest : legs 
pale chestnut ; tarsi testaceous. 
In the other sex? the elytra are entire and unarmed, and the dorsal 
rows of punctures on the disk of the elytra are more numerous. 
VARIETY B. Entirely rufous, or pale-chestnut. [Quite common in 
Canada under bark of Pine trees.] | 7 
[192.] 256. APATE BIVITTATA K7rby.—-Plate viil., fig. 5.—Length of 
body 134 lines. <A pair taken in the Expedition. 
Very near A. domestica (A. limbata F.) but distinct. Body piceous or 
nigro-piceous, cylindrical ; underneath with some scattered pale hais: 
Head rough with minute elevations or granules ; nose terminating in a 
transverse ridge ; antennae testaceous with a very large knob: prothorax 
subglobose, reddish, rough behind with numerous transverse rugosities ; 
before with sharp points or denticles ; elytra with several rows of punc- 
tures, and two luteous stripes which unite at the apex of the elytrum ; or 
perhaps it might be better to say, luteous, with two piceous stripes, one of 
the disk and the other of the side, but not reaching the apex: anus and 
legs testaceous. 
In the other sex the front, or rather face, is hollowed out into a con- 
cavity ; the prothorax is black anteriorly, and less rough from rugosities 
and points. [Belongs to the genus Xy/oterus, Er. LeConte (Trans. Am. 
Ent. Soc., 1868) states that this species is taken from ‘ Maine to Alaska. 
In the g the head is concave, and the thorax finely transversely asperate 
before the middle; in the 9 the head is convex, and the thorax much 
more roughly asperate. This species varies greatly in colour, the black 
elytral vittæ sometimes occupy nearly the whole surface, and sometimes 
are almost wanting.” 
[193.] 257. APATE RUFITARSIS Azréy.—Length of body 134 dines. 
Two specimens taken in the Expedition. 
Body cylindrical, black, hairy underneath. Head hairy; face concave ; 
antennae pale testaceous : prothorax rufous posteriorly, granulated especi- 
ally anteriorly ; elytra punctured in rows, rufous, with a black humeral 
blotch : tarsi rufous. 
The face of the other sex is probably plane; and the prothorax with 
more prominent points and asperities. | Unknown to LeConte. | 
258, APATE (LEPISOMUS) RUFIPENNIS K?rby.—Plate vi, fig, 2, 
Length of body 134 line. Two specimens taken in Lat, 65°. 
