

394 [Feb. 1, 
LeConte.] 
smaller and indistinct upon the front. Prothorax with smooth dorsal stripe 
broad, sides strongly sparsely punctured. Elytra with rather large punc- 
tures arranged somewhat in rows. Abdomen sparsely finely punctured, 
tip and posterior border of segments brown; ventral segments brown. 
Length 6 mm.; .24 inch. 
c? and 9 2d ventral segment with a small tubercle bearing two small 
stout black sete resembling spines; f? 3d ventral segment marked 
with a small fovea. 
The last joint of the maxillary palpi is about one-third the length of the 
3d joint. The elytra are a little shorter than the prothorax. 
Tampa and Enterprise; three 9. On examining seven 
specimens, I find no difference in the ventral segments, ex- 
cept that in all of them the 2d (apparent) segment has a 
small transverse impression and fold, bearing spines; while 
in two of them the 3d segment has also a small round fovea 
at the middle,a little nearer the front than the hind margin. 
There is no difference in the size of the head. 
44. [18.] Cryptobium obliquum, n. sp.—Slender, cylindrical, 
shining, black ; antenne, palpi, and legs yellow. Head as long as the pro- 
thorax, distinctly wider, sides oblique behind the eyes, and broadly round- 
ed ; eyes rather large, convex ; sparsely punctured, front smooth, with only 
a few scattered punctures, the smooth space prolonged behind to between 
the eyes. Prothorax with smooth, dorsal stripe wide, not well defined ; sides 
sparsely, strongly punctured, punctures arranged almost.in rows. Elytra 
coarsely punctured, here and there almost in rows. Abdomen sparsely 
punctured, nearly smooth towards the tip, which is brown. Length 6 mm.; 
.24 inch. : ۱ 
c? 8d ventral segment with a long, triangular setose process, rounded at 
tip; 2d and 3d segments not distinctly impressed. 
© 2d and 3d ventral segments, each with a very small bisetose fovea. 
Tampa; April, one pair. Quite different from C. lugubre 
by the form of the head. | 
45. [19.] Cryptobium parcum, n. sp.—Cylindrical. shining, 
black, antenn&, palpi, and legs yellow. Head as long as the prothorax, 
distinctly wider, sides oblique behind the eyes and broadly rounded ; eyes 
rather large, convex; punctured as in C. obliquum. Prothorax with 
smooth dorsal stripe, sides sparsely coarsely punctured in rows. Elytra as 
long as the prothorax, coarsely punctured, here and there in rows. Abdo- 
men sparsely less finely punctured, tip brown. Length 6 mm.; .24 inch. 
© 9d and 3d ventral segments not impressed. 
Cedar Keys; June, one $. Differs from C. obliquum chiefly 
by the less slender form, coarser punctures of the prothorax, 
and absence of ventral impressions. 
1878.] 395 
[LeConte, 
46. [21.] Cry ptobium lepidum, n. sp.—Slender, less convex, 
ferruginous, shining, pubescence fine. Head oval, nearly as long as the 
prothorax, and wider than it, sides much rounded behind the eyes, which 
are rather large and convex ; sparsely, equably punctured, front not less so 
than the rest of the surface ; there are two long, but not deep frontal im- 
pressions. Prothorax with smooth dorsal stripe narrower than usual, lim- 
ited each side by a row of points, which becomes a slightly impressed stria 
towards the base ; sides rather sparsely punctured, almost in rows. Elytra 
distinctly longer than the prothorax densely, rather finely punctured. Ab- 
domen sparsely punctured. Legs paler. Length 8.8 mm.; .15 inch. 
Bosque County, Texas, Mr. G. W. Belfrage, two 9. The 
ventral segments are not impressed. A very small and pretty 
species, less convex than the others in our fauna. 
47. Paederus obliteratus, n. sp.—Elongate, slender, reddish-yel- 
low, shining ; head and last two abdominal segments black ; above yellow ; 
elytra blue-black ; antenne brownish at the middle. Head sparsely punc- 
tured, slightly wider than the prothorax; the latter elongate-oval, feebly 
sparsely punctured, elytra not longer than the prothorax, sparsely but not 
coarsely punctured at the base, nearly smooth behind the middle. Dorsal 
segments very sparsely and finely punctured. Length 5 mm.; .20 inch. 
cf Sixth ventral cleft nearly to the base ; cleft wide, rounded at the an- 
terior extremity. 
Southern part of Florida, Dr. Palmer; Mr. E. P. Austin 
gave me a similar specimen as found at Cambridge, Massa- 
chusetts. This species is easily distinguished by the finer 
punetures of the elytra becoming gradually obliterated be- 
hind. 
Larger series of specimens have indicated to me the neces- 
sity of some modifieations in the table of speeies of this 
genus published by Mr. Austin, (Proc. Bost. Soc. Nat. Hist. 
xix, 47); and I would propose to substitute for it the fol- 
lowing synopsis : | 
Table of Species of PADERUS. 
Head not flattened in front 
Head flattened in front 
. Epistoma not margined in front........... eee ‚3. 
Epistoma concave, strongly margined; half of thighs, knees and greater 
part of tibie dusky grandis. 
Epistoma not concave, finely margined........... enn riparius. 
3. Antenne brown, pale only at base 
Antenn& with base and outer joints pale 

