Dv 
LeConte.] 374 heb. 1, 
I am indebted for two specimens. This beautiful species is 
easily recognized by the peculiar coloration. I have referred 
it to Onota Chaud.. because the 4th joint of the tarsi 1s broad, 
and deeply bilobed, and the claws are pectinate. The teeth 
of the claws are only four in number, and are much larger 
than in the other species. The tarsi are glabrous on the 
upper surface. The last joint of the maxillary palpi is cylin- 
drical, slightly oval, and more than twice as long as the pe- 
nultimate joint; the last joint of the labial palpi is oval, 
pointed and somewhat flattened. Mentum not toothed. It 
is by this last character that it mainly differs from Callida, 
with which it agrees in having two bristles near the tip of 
the ligula. 
j|. Platynus fioridanus, n. sp.—Dark.green, shining, slightly 
bronzed, antenn&, less and under surface piceous-black. Prothorax 
scarcely longer than wide, sides broadly rounded, and finely margined ; 
apex emarginate, front angles slightly rounded; base broadly sub-trun- 
cate, oblique towards the side angles, which are obtuse and almost 
rounded ; basal impressions rather long, not punctured ; dorsal line ex- 
tending to the posterior transverse impression, which is faint. Elytra one- 
third wider than the prothorax, emarginate at base, obsoletely sinuate at 
tip; stris fine, but well impressed, not punctured ; interspaces flat, 9d with 
usually 6 small dorsal punctures, the 1st and 2d adjacent to the 3d stria, 3d 
and 5th upon the interspace, 4th and 6th adjacent to the 2d stria. Hind 
tarsi with the 1st, 2d, and 3d joints broadly grooved on the outer side. 
Length 9.6 mm.; .35 inch. 
Capron and Lake Harney, abundant. This species is 
closely related to P. californicus, and differs only by the 
hind angles of the prothorax being much less distinctly de- 
fined; in fact, almost rounded. The size is usually larger, 
so that the smallest individuals of P. foridanus are equal to 
the largest of californicus, but this is a character of small im- 
portance. Closely allied to these two is the following: 
4. Platynus texanus, n. sp.—Less shining, with a green-metallie 
reflection. Antenne black; under part of 1st joint, palpi and legs testa- 
ceous; knees, tarsi and tips of tibie blackish-piceous. Prothorax, as in 
P. floridanus, except that it is a little wider than long. Elytra simi- 
larly striate and punctured, but with the stris a little deeper; epipleure 
testaceous, under surface black. Groove of the outer side of the hind tarsi 
on the joints 1-8 deep Length 9-10 mm.; .35—.40 inch. 
== 
AT re 
1878. 375 
[LeConte. 
Abundant in Texas. For a good set I am indebted to Mr. 
G. W. Belfrage, of Clifton, Bosque county. 
Several new species of Loxandrus were collected in Florida 
by Messrs. Schwarz and Hubbard, and full sets of previously 
known, but rare species were obtained. Under these cir- 
cumstances, though I cannot, without reference to types con- 
tained in Baron Chaudoir’s cabinet, prepare an exhaustive 
synopsis of the genus, the following table of the differences 
between the species I have examined may be found useful: 
Table of Species of LOXANDRUS. 
A. Side margin of prothorax explanate and reflexed towards the hind 
angles, which are entirely rounded into the base and sides; antenne and 
palpi rufo-piceous, legs dark : (species large and middle sized). 
B. Side margin of prothorax not’ explanate towards the hind angles, 
which are not rectangular : (species large and small). 
C. Side margin of prothorax not explanate towards the hind angles, 
which are rectangular: (species small). 
A. 
Large species (length 13.3-10 mm. ; .52-.40 inch) 
Smaller species, with hind angles of prothorax less broadly en 
(length 10—7.8 mm.; .40-.31 inch) 
2. Side margin of prothorax broader and more distinctly reflexed towards 
the base; elytra with more finely punctulate stris, iridescent reflec- 
tions less brilliant 1. reflexus, n. sp. 
Side. margin of prothorax less definitely limited towards the base; 
elytra with less finely punctured strive; iridescent a very 
bright 2. saphyrinus. 
3. Prothorax regularly narrowed faa base to tip, sides feebly explanate 
towards the base 3. calathinus, n. sp. 
Prothorax but slightly narrowed in front; sides more distinctly ex- 
planate towards the Dase. ds. dresse SR U Ze 4. floridanus, n. sp. 
B. 
Larger species (length 13-9.3 mm.; .50-.37 inch)..... MRS N en ll 2. 
Small species (length 7.7-5.8 mm. ; .32-.225 inch) 
Legs dark 
Legs ferruginous, prothorax wider than long, hind angies obtuse, bl ja 
ON Ree Ce af ti. ی‎ dea essen 5. rectus. 
3. Prothorax wider than long, hind angles slightly obtuse, not at all 
rounded Br 6. brevicollis. 
Prothorax very slightly B than long, hind angles rounded at the 
arp COS I و و‎ de A . minor. 
Proth. not wider than long, hind angles not rounded 

