€ 
LeConte.] 378 [Eeb, 1, 
behind the middle, and pointed at the posterior end. Differs 
also from all previously known small speeies of the United 
States, by the thorax having a very short basal stria not con- 
tinued on the elytra. 
11. Dineutes angustus, n. sp.—Narrower, smaller and more con- 
vex than D. discolor, elongate-oval, slightly narrowed in front, bluish- 
black, with slight: metallic gloss. Prothorax very little wider than the 
head, sides straight, slightly oblique, transversely very convex. Elytra 
sparsely, finely punctured, strie obliterated ; sides feebly and narrowly ex- 
planate, scarcely undulated near the apex, which is (9) obtusely pro- 
longed. Under surface and legs rufo-testaceous. Length 9.5 mm.; 0 
inch ; breadth 4.5 mm.; .175 inch. 
Three females, collected by Dr. Palmer. THe marginal 
line of the front margin of the prothorax 1s less interrupted 
in these specimens than in D. discolor, but I do not think 
this a character of any value. 
Table of Species of OCHTHEBIUS. 
The number of species of Ochthebius in our fauna has increased to such 
an extent, that the recognition of the three new species collected by Mr. 
Schwarz would be facilitated by the description of those from other 
parts of the country. The following table contains those which I have been 
able to examine: 
Prothorax much wider than long, strongly rounded on the sides, disc 
strongly punctured and deeply channeled 
Prothorax much wider than long, disc lobed at the sides, discoidal im- 
pressions foveate, dorsalchannel deep... sa Dv ed YT s. 
Prothorax sub-quadrate, less rounded on the sides ; 
. Prothorax with deep discoidal impressions each side of dorsal channel ; 
pellueid margin suddenly dilated inwards at the base 
Prothorax with discoidalimpressions faint or wanting ; pellucid margin 
slightly wider towards the base 
. Discoidal impressions united, forming a groove each side of the goral 
channel, sides of disc of prothorax curved 1. puncticollis. 
Discoidal impressions separate, sides of disc of prothorax curved 
2. discretus, n. sp. 
Discoidal impressions separate, sides of disc of prothorax straight 
3. rectus, n. sp. 
. Lateral impressions large and broad, discoidal ones wanting 
4. cribricollis. 
Lateral impressions smaller, discoidal small, faint. ...5. attritus, n. sp. 
Lateral impressions small, discoidal wanting 6. simplex, n. sp. 
1878.] 319 [LeConte. 
5. Prothorax shining, elytral strie usually composed of distant punctures.6 
Prothorax less shining, elytral striæ of small, less distant punctures. .7. 
. Elytra with strie of small, close-set punctures, not effaced behind.. 
7. tuberculatus, n. Sp. 
| Elytra with strie of large, distant punctures, effaced behind.8. sachs 
Elytra more convex and more oval, stri: effaced. .9. leevipennis, n. sp. 
. Disc of prothorax lobed behind the front angles.. .10. foveicollis, n. sp. 
Disc of prothorax not lobed behind the front angles.............. 
ll. benefossus, n. sp. 
. Prothorax with dorsal channel fine, interrupted, or obsolete. .... .... 9. 
Prothorax with dorsal channel deep, entire 
. Discoidal impressions of prothorax forming sinuate ose: dorsal line in- 
terrupted 12. E ERAN n. Sp. 
Discoidal impressions vague, u transversely ; dorsal line obso- 
13. Holmbergi. 
Discoidal presione forming fine, sinuate lines ; dorsal line fine, ab- 
breviated at each end 14. lineatus. 
10. Discoidal impressions deep, not confluent, prothorax more transverse, 
and feebly punctured (reverts towards No. 4) 15. interruptus. 
12. Ochthebius discretus, n. sp. —Dull brownish-bronze, elong- 
ate-oval, moderately convex ; head with strongly impressed frontal suture ; 
front sparsely, hind part coarsely punctured, with two large fovex, and a 
small posterior impression. Prothorax twice as wide as long, much 
rounded on the sides, pellucid margin very narrow, dilated inwards at 
base; disc greenish-bronze, strongly punctured, deeply channeled, with 
two deep, oblong impressions each side, and another half way to the lat- 
eral margin.. Elytra but slightly wider than the prothorax, strie deep, 
closely punctured, fainter and nearly obliterated attip. Legs and under 
surface dull testaceous. Length 2 mm.; .075 inch. 
California, San Mateo, Gilroy and San Diego; Mr. G. R. 
Crotch; Dr. Horn has received a smaller specimen trom 
Ganada. Resembles O. puncticollis, but is smaller and less ro- 
bust,and the outer dorsal lines are interrupted so as to torm 
two deep impressions. 
13. Ochthebius rectus, n. sp.—Oval, convex, dark bronzed, not 
very shining. Prothorax twice as wide as long, pellucid margin rather 
broad, rounded on the sides, suddenly dilated inw ards near the base ; disc 
with the outline straight from the front angles to the posterior deep emar- 
gination ; convex, deeply and coarsely punctured ; dorsal line deep, dis- 
coidal impressions deep, nearly united, lateral impressions large, deep. 
Elytra with strie of large and deep quadrate punctures. Legs dark-testa- 
ceous. Length 14 mm.; .06 inch. 
G i ۷ RO ye Pee SR x 
Fort Tejon, Cal.; Mr. Crotch, one specimen. Related to 

