OF WASHINGTON. 77 
This species belongs to the T. pini division of the genus, 
characterized by four marginal teeth on each side of the 
elytral declivity. Evidently it was not represented in material 
seen by Eichhoff and Blandford. It is readily recognized 
from Tomicus integer Eichh., by its much smaller size, and 
from T. oregoni Eichh. and other allied North American 
species, which might find their way into Mexico, by its more 
slender form. 
Tomicus cribripennis Eichh. Four females and four males, 
Mexico, in pine, received from Dr. Bonansea. This species 
is a representative of the section of the genus characterized 
by five teeth on the side margin of the elytral declivity, and 
also with the interspaces of the elytra punctured. This sec- 
tion is represented in the United States by Tomicus confusus 
Lee., which I have found to be a common and sometimes 
destructive enemy of the pinon (P. edulis in Arizona, and 
P. monophylla in Southern California) ; also by an undescribed 
species from Idaho and Montana, in Pinus monticola. 
The Mexican species differs from T. grandicollis Eichh. of 
the Eastern United States (which also has five teeth on the 
declivity) in the distinct punctures of the elytral interspaces. 
Blandford states that the specimens seen by him differ from 
the type in being smaller and less robust, which is the differ- 
ence from confusus observed in the specimens before me. 
Phlceophthorus moripcrda n. sp. Female type, length 1.65 mm.; stout, 
cylindrical, reddish-brown; head, prothorax and ventral surface darker. 
Elytra, legs and antennal scape reddish. Head subcorivex, subopaque, 
finely granulated and with very fine, short, sparse pubescence, and with 
a fine, median longitudinal elevated line on the slightly flattened and 
more shining anterior half; eyes oblong, oval, not emarginate; antennal 
scape with a few long hairs; club large with three triangular segments 
separated by two impressed slightly oblique sutures. Prothorax one- 
third broader than long, one-half as long as elytra, slightly narrowed 
from base to front, the anterior margin not serrate; surface opaque, 
clothed with reclining, stout, yellow pubescence and roughened by 
sparsely placed granules, which are coarser towards the sides. Elytra 
shining, the base elevated and serrate; the side margins serrate from 
middle to apex; serrations much coarser on the side margins of 
the declivity; striae impressed; punctures distinct to vertex; inter- 
spaces faintly elevated and roughened with a row of asperities and each 
with a row of fine, yellowish hairs from base to apex; declivity convex; 
striae deep and narrow, but the punctures obscure; interspaces convex, 
and with a row of small acute granules. 
Male type, length 1.85 mm.; same form and color as female but with 
the head narrower and deeply concave, shining; the sides elevated and 
