1878.] 571 {Horn. 
more depressed and with a wider thorax, the sculpture of 
which is similar in the two species. 
One specimen, Marquette, Michigan. Dr. Schwarz. 
L. limearis Crotch. Trans. Am. Ent. Soc. 1874, p. 75. 
Elongate, moderately convex, pitchy black, opaque, sparsely clothed 
with yellowish hair. Head granulate. Thorax longer-than wide, slightly 
narrowed toward the base, sides straight, margin crenulate, hind angles 
distinct, dise with three shallow fovese, one larger anterior, two smaller at 
base, feebly separated by obuuse elevations, with a row of yellowish hairs 
on their summits, surface opaque, punctato-granulate. HElytra black, 
opaque, base narrowly and small sub-apical spot rufous, parallel, very little 
wider than the thorax, and with four discal coste and margin feebly ele- 
vated, intervals biseriately coarsely punctate. Body beneath piceous, sur- 
face moderately densely punctate. Legs paler. Length .10-.12 inch ; 
2.5-3 mm. 
The sculpture of the thorax of this species is nearly that 
described in another manner by Mr. Pascoe for J. terrenus. 
Occurs under bark of trees at Santa Inez, California. 
L. simplex Lec. Proc. Acad. 1866, p. 398. 
Elongate, sub-cylindrical, brownish, opaque, sparsely clothed with yel- 
lowish pubescence. Head punctate, opaque. Thorax longer than wide, 
slightly narrowed posteriorly, sides straight, hind angles obtuse, margin 
simple, apical margin slightly thickened at middle, disc moderately con- 
vex, a feeble median impression, surface rather coarsely punctured. Elytra 
sliehtly wider than the thorax, suture, four discal costee and margin sub- 
acutely elevated, intervals biseriately coarsely punctured. Body beneath 
moderately densely punctate, legs rufous. Length .10 inch ; 2.5 mm. 
This species is the smallest in our fauna, and is known by 
the very feeble median impression of the thorax. The pune- 
tures of the elytral intervals are quite large and crowd each 
other so as to appear sub-confluent transversely. The pro- 
sternum between the cox is very narrow. 
One specimen; Cape San Lucas, Lower California. 
L. referendarius Zimm. Trans. Am. Ent. Soc. 1869, p. 254. 
Elongate, sub-depressed, piceous, opaque, sparsely pubescent. Head 
punctured, with ~ vague impression on each side separated by an obtuse 
elevation. Thorax longer than wide, slightly narrowed behind, sides 
nearly straight, margin simple, apical margin with thickened edge, hind 
angles obtuse, disc vaguely longitudinally impressed and with traces of two 
fine carine visible only at the apex and base of the impression, surface 
moderately densely punctate. Elytra not wider than thorax in front and 
with suture, four discal cost and margin feebly elevated, intervals with 
