DOM 
1878. ] 309 
[Schwarz. 
striate, scutellar stria not reaching the middle, interstices smooth, sub- 
convex. Beneath, black; epipleure of thorax shining, impunctate, pros- 
ternum coarsely punctate, sometimes with a smooth space in the middle, 
margined between the front coxe, mesosternum visible, declivous, meta- 
sternum moderately long, smooth, shining, hind margin almost straight and 
not emarginated by the hind coxs&, marginal line feebly punctulate in front, 
simple behind and at the sides, side pieces opaque, abdomen often aluta- 
ceous, first and second segment shining, sparsely punctate, the remaining 
segments less shining, punctulate, Hind femora moderately incrassate, 
more or less infuscate, sometimes entirely testaceous. Length 1.50-1.75 
mm.; .06—.075 inch. 
Enterprise and New Smyrna, many specimens, in May and 
June. This species has exactly the aspect of a small Crepi- 
dodera and is distinguished by its less convex form, by the 
quadrate thorax, which is much narrower at the base than 
the elytra, and by the form of the metasternum. The sculp- 
ture of head and thorax is subject to variations as in the 
other species; but the form and sculpture of the sterna ap- 
pear to offer more reliable characters. 
29. Microrhopala floridana, n. sp.—Elongate, parallel at the 
sides, moderately shining, uniformly blackish-blue. Head sculptured as 
in M. cyanea, second joint of antenn® as long as wide, third joint a little 
longer. Thorax at base but little wider than long, narrowed in front, 
transversely convex, at the sides almost straight, base lobed in the middle 
and strongly sinuate each side, anterior angles acute, prominent, posterior 
angles obtuse ; very coarsely punctured and in some specimens with a fine, 
impressed median line. Elytra with eight regular rows of very coarse 
punctures, alternate interstices evidently carinate. Prosternum with coarse 
punctures, metasternum punctate at the sides, abdomen sub-opaque, indis- , 
tinctly punctulate. Length 3.75-4.5 mm.; .15—.18 inch. 
Differs from M. cyanea by its narrower and more elongate 
form, less transverse thorax, and by the costate elytra. One 
specimen is almost pure black above. 
Sumter county, many specimens, also found in Tampa 
and Enterprise. 
30. Strongylium anthrax, n. sp.—Sub-opaque, deep black, and 
only the last joint of antenne yellowish. Head formed as in £. tenuicolle, 
anteriorly sparsely and finely, posteriorly more strongly and densely punctu- 
late; antenne slender. Thorax at base a little wider than long, at the sides 
slightly rounded anteriorly, parallel posteriorly, base feebly sinuate each 
side, front angles rounded, hind angles rectangular, not densely punctulate, 
and not grooved, basal margin less thickened than in S. tenutcolle. Elytra 
PROC. AMER. PHILOS. SOC. XVII. 101. 27. PRINTED APRIL 19, 1878. 

