Horn.|] 570 [April 19, 
ters are, however, perfectly valid, and one, the partial con- 
cealment of the eyes, is as remarked by Mr. Pascoe (Journal 
of Entomology, II, p. 33) a very unusual occurrence, the 
sides of the clypeus either terminating in front of the eye 
or partially dividing it. It should, however, be stated that 
while this structure is well marked in one species, it be- 
comes gradually feebler so that there is merely a supra- 
orbital ridge in all the others. These seem to me identical 
with Mr. Pascoe’s genus J/lestus. 
Our species may be separated as follows: 
Elytra equally costate over the entire surface. 
Thorax costate or with feebly elevated sinuous lines. 
Thorax wider than long. 
Disc of thorax costate. Eyes partially concealed......... complex. 
Disc with sinuous lines indicated by pubescence........... borealis. 
Thorax longer than wide, disc with sinuous lines............ linearis. 
Thorax vaguely longitudinally concave. 
Thorax longer than wide......... ughetaet SS Natao Sitpaoee Gowoad simplex. 
Thorax as wide or wider than long.......... hocoSsUmoud referendarius. 
Elytra broadly longitudinally channeled, the fifth interval being strongly 
elevated and the first and third not so..........-.....:... pusillus. 
L. complex Lec. Proc. Acad., 1858, p. 282. 
Oblong-elongate, blackish, opaque. Head slightly concave, an obsolete 
tubercle on the vertex, surface granulate. Thorax quadrate, slightly wider 
than long, apex trisinuate, sides feebly undulate, margin obsoletely crenu- 
late, base arcuate at middle, hind angles rectangular, disc quadricostate, 
median coste approximate in front, then arcuate outwardly and converg- 
ing at their apices, between which are two smaller costa, outer cost 
slightly undulated, intervals granulated. Elytra slightly wider than the 
thorax, each with four discal costz and the margin acutely elevated, inter- 
vals biseriately punctate. Body beneath opaque, abdomen punctate, scab- 
rous. Legs ferruginous. Length .16 inch; 4mm. 
Ocenrs from Punto de los Reyes, California, to Vancouver. 
L. borealis, n. sp. 
Elongate, piceous, elytra brownish, sub-opaque, sparsely pubescent. 
Head densely punctured, sparsely pubescent Thorax slightly broader 
than long, and a little narrower at base, surface finely granulate and with 
sinuous feebly elevated lines. Elytra slightly wider than the thorax, disc 
sub-depressed, each with four costz and the margin acutely elevated, in- 
tervals biseriately quadrately punctured. Body beneath opaque, coarsely 
and densely punctured. Length .12 inch; 3 mm. 
This species is closely allied to /inearis, but is broader and 
