cp Py ce 
LeConte.] 316 [Feb. 1, 
4. Legs dark, hind angles of prothorax not rounded ; elytra with à round 
sutural red spot behind the middle 9. celer. 
Legs dark, hind angles of prothorax rounded at tip ; varies with the 
legs brown-ferruginous, seems to pass insensibly to L. velow. .10. agilis. 
Legs yellow, hind angles of prothorax rounded at tip 
a. Prothorax rounded on the sides; not conspieulously wider than long ; 
veloz. 
û. Prothorax rounded on the sides, conspicuously wider than long; 
pusillus. 
y. Prothorax nearly square, less rounded on the sides; tæniatus, pici- 
ventris. 
C 
Legs dark, elytral striæ feebly punctured., ... 3...12. rectangulus, n. sp. 
Legs yellow, elytral striæ coarsely punctured 13. crenatus. 
5. Loxandrus reflexus, n. sp.—Black, very shining, with irides- 
cent reflection. Prothorax wider than long, feebly emarginate at apex, 
equally feebly rounded at base, sides and hind angles rounded ; side margin 
reflexed, narrow in front, becoming much wider behind, so as to extend 
at the base to the basal impressions, which are linear and deep ; dorsal line 
very fine, transverse impressions obsolete. Elytra not wider than the pro- 
thorax, striz finely punctured in front, deeper and not punctured behind, 
antenne, palpi and tarsi piceous-brown. Length 10-13 mm.; .40-.50 inch. 
Tampa, not rare. This fine species has much resemblance 
to L. saphyrinus, which occurs in Louisiana; but on com- 
parison, the iridescent reflection 1s less vivid, the prothorax 
is less rounded on the sides, the broad part of the reflexed 
side margin towards the base is much better defined, and 
finally the elytral stris are much more finely punctured from 
the base to the middle. | 
6. Loxandrus calathin#s, n. sp.—Elongate-oval, black, very 
shining, slightly iridescent ; tarsi and antenne piceous, the latter with 
joints 1-3d, and palpi dark ferruginous. Prothorax wider than long, much 
narrower in front than behind, broadly rounded on the sides, which are 
broadly but not strongly explanate towards the base; hind angles dis- 
tinctly rounded at tip, basal impressions linear, as usual deep. Elytra with 
the stri: finely but distinctly punctured. Length 8.8-10 mm. ; .35-.40 inch. 
Tampa, Florida; not common. 
7. Loxandrus floridamus, n. sp.—Black, very shining, irides- 
cent; antenne and legs piceous or blackish, base of the former, palpi and 
tarsi ferruginous. Prothorax wider than long, scarcely narrower in front 
than at base, sides rounded, broadly but slightly explanate towards the 
base ; hind angles obtuse and more rounded at the tip than in L. calathinus, 
1878, 3 
| LeCon te. 
basal impressions linear, not very deep. Elytra with the. stris feebly anu 
finely punctulate. Length 7.4-8.5 mm.; .29-.33 inch. 
Capron and Enterprise; abundant. Varies in color accord- 
ing to maturity, so that the tibie and sides of the thigns 
also become yellow-brown. In some specimens the sides of 
the prothorax are less distinctly explanate, and such, except 
by their larger size, are difficult to distinguish from L. agilis. 
8. Loxandrus rectangulus, n. sp.—Black, very shining; slightly 
iridescent ; antennee and legs piceous, or blackish. Prothorax wider than 
long, slightly narrower at tip than at base, sides rounded, not sinuate 
behind, hind angles rectangular, not at all rounded ; side margin more 
broadly reflexed towards the base, sides not explanate ; base with a few 
scattered punctures, impressions linear, deep. Elytra distinctly wider than 
the prothorax, strie not punctured. Length 6.5 mm.; .25 inch. 
Enterprise, May; rare. This species and crenatus, by hav- 
the elytra wider than the prothorax resemble in form certain 
Platyni and Bembidia. There are but two specimens before 
me; in the Y the elytral striæ are much deeper than in the c. 
9. Selenophorus excisus, n. sp. —Oblong, eneous, sub-depressed; 
legs and antenne piceous, first joint of antenne ferruginous. Prothorax 
nearly twice as wide as long, rounded on the sides, which are finely mar- 
gined, a little narrower at base than at tip ; hind angles rounded, basal im- 
pressions shallow, not punctured. Elytra deeply sinuate at tip; humeri 
rounded, strie fine, interspaces flat ; punctures of the three series rather 
large and conspicuous. Hind tarsi long and slender, Length 5.5 mm. ; 
.22 inch. 
Southern Florida, Dr. Palmer, 3 specimens. Of the same 
size, form and characters as S. fatuus, from which it differs 
by the punctures of the three elytral series being much 
larger, and by the hind angles of the prothorax more obtuse 
and more rounded. The outer interspaces of the elytra are 
not all punctulate. 
10. Hydroporus seminulum, n. sp.—Broadly ovate, obliquely 
attenuate behind, rounded in. front, not very convex ; rufo-testaceous, 
shining. Prothorax scarcely perceptibly punctulate, with a fine short 
basal stria each side, which does not extend upon the elytra; the latter 
very finely, though distinctly punctulate. Beneath sparsely but strongly 
punctured. Length 1.3 mm.; .05 inch. 
Enterprise, one specimen. Of the same size as H. granum, 
but very different by the body being strongly narrowed 
PROC. AMER. PHILOS. SOC. XVII. 101. 2U. PRINTED APRIL 19, 1878. 

