LeConte.] 380 [Feb. 1, 
O. discretus, but very different by the sides of the dise of 
the prothorax being quite straight for nearly two-thirds the 
length. ! 
14. Ochthebius attritus, n. sp.—Elongate-oval, bronzed. Head 
sparsely but strongly punctured, with two occipital foves, and deep frontal 
suture. Prothorax wider than long, narrowed behind, pellucid margin 
very narrow, visible only behind the middle; disc strongly punctured, not 
lobed at the sides, dorsal channel deep, discoidal impressions small, sepa- 
rate, lateral impression broad, shallow. Elytra less shining, strie com- 
posed of nearly square, close-set punctures, not obliterated at the tip. Be- 
neath blackish, legs testaceous. Length 1.5 mm.; .06 inch. 
Haulover, March, one specimen. Related to O. cribricol- 
lis, but much narrower and smaller, and with distinct, though 
not deep, discoidal impressions. 
15. Ochthebius sim plex, n. sp.—Oval, moreconvex, bronzed, less 
shining. Head sparsely, strongly punctured, with two occipital fovese, 
and deep frontal suture. Prothorax wider than long, slightly narrowed 
behind, pellucid margin very narrow, visible behind the middle; disc 
strongly punctured, not lobed at the sides, dorsal channel deep, discoidal 
impressions scarcely visible ; lateral impressions nearly obsolete ; a small, 
shallow fovea is seen near the hind angle. Elytra with rows of close-set, 
not very fine punctures, not obliterated behind. Legs testaceous. Length 
1.2 mm.; .048 inch. 
Haulover, March, one specimen. Very much smaller and 
more convex than QO. cribricollis, with the lateral impressions 
small and indistinct. 
16. Ochthebius tuberculatus, n. sp.—Longer and less convex 
than A. nitidus, piceous-bronze, shining. Head with two large fovese, and 
deep, transverse suture. Prothorax wider than long, sides moderately 
rounded, pellucid margin represented only by a small lateral spot, and one 
at the hind angles; disc not punctured, dorsal channel very deep, dis- 
coidal impressions very deep; each side a small, round fovea in front of the 
middle, a longer slightly oblique one behind the middle, and another one 
near the side, which is strongly lobed ; the proiongations of the disc to the 
anterior angles are very convex, forming a large tubercle. Elytra with 
strie composed of small, close-set punctures. Beneath piceo-testaceous. 
Length 1.5 mm.; .06 inch. 
Moqui villages, New Mexico, Dr. Horn. 
Ochthebius nitidus Lec. Agassiz, Lake Superior, 217; 0. Jos- 
satus Lec. Proc. Acad. Nat. Sc. Phila. 1855, 362. 
Lake Superior; Fort Yuma, Cal. The synonym belongs 
1878, | 391 [LeConte. 
to a specimen which differs only by the punctures of the 
elytral strie being less distant. Allied to this, but appa- 
rently distinet is: 
17. Ochthebius leevipennis, n. sp. —Dark piceous-bronze, very 
convex, shining, of the same form as O. nitidus. Head with two large 
deep fovex, and a deep transverse suture. Prothorax with deep dorsal 
line, two small fovex each side in front of the middle, a deep impression 
near the apical margin, towards the anterior angle; sides deeply lobed as 
in O. nitidus, pellucid margin broad, with an undulated outline. Elytra 
. with deep, humeral fosse; strise obsolete, traced only by a few fine, dis- 
tant punctures near the base. Under surface piceous, legs testaceous. 
Length 1.8 mm.; .05 inch. 
Tejon, California; one specimen, Dr. Horn. It is possible 
that this is an extreme variety of O. nitidus, but until the 
intermediate forms are collected, it should properly be known 
under a different name. 
18. Ochthebius foveicollis, n. sp.—Closely resembles O. nitidus, 
‚but the elytra are longer, more obliquely narrowed behind, and the strise 
are composed of rather large, close-set punctures, not less distinct towards 
the tip. From O. tuberculatus, it differs by broader prothorax, with larger 
lateral pellucid spot, and broader anterior lobes of the disc. Length 1.2 
mm.; .048 inch. 
Enterprise and Lake Harney, Florida, May; not rare. 
19. Ochthebius bemefossus, n. sp.—Oval, moderately convex, 
bronzed, shining. Head sparsely punctured, with two very large fovex 
connected behind ; transverse suture deep. Prothorax wider than long 
(pellueid margin?) disc with the sides straight from the anterior angles to 
the middle, then strongly narrowed to the base (making a concave outline 
which must be filled with membrane in well preserved specimens); 
sparsely punctured, dorsal channel very deep, discoidal impressions deep, 
the posterior ones connected in a horse-shoe form. Elytra with strie com- 
posed of punctures distant from each other about their own diameters, 
basal fossee small. Beneath piceous, legs testaceous. Length 1.5 mm.; .06 
inch. 
New Jersey, Dr. Horn. Nearly of the same form as O. 
nitidus, but different by the dise of the prothorax not being 
lobed at the side behind the front angles, as well as by the 
style of sculpture, which is more simple, and tends towards 
O. Holmbergi and allies. 
20. Ochthebius sculptus, n. sp.—Elongate-oval, greenish-piceous, 
slightly bronzed, shining. Head sparsely punctured with deep frontal su- 

