LeConte.] 416 [Feb. 1, 
less shining, and more rugose, with the antenne longer and 
more slender. 
105. Diabrotica vincta, n. sp.—Black, prothorax bright yellow, 
quadrate, smooth, with two large discoidal fovese, side margin narrowly 
reflexed. Elytra wider than prothorax, punctured somewhat in rows, with 
the lateral and apical border, and.a narrow vitta from the base to the tip, 
occupying an elevated ridge parallel with the suture, pale yellow. Beneath 
yellow, meso- and metathorax, outer half of thighs, tibie and tarsi black. 
Antenne black, base brownish; 3d joint longer than 2d, united equal to 
the 4th. Length 4 mm.; .16 inch. 
Capron; April, one specimen. 
106. G@dionychis indigoptera, n. sp.—Dull ferruginous, anten- 
ne and legs piceous; elytra blue-black, strongly and densely punctured, 
narrowly margined. Head sparsely punctured, median line abbreviated 
in front, and interrupted at the vertex ; there are two small rounded ۵۴۵ 
between the eyes. Prothorax transverse, narrowed in front, sub.sinuate, 
but scarcely rounded on the sides, which are broadly flattened ; front angles 
small, prominent ; disc smooth, not shining. Hind thighs very large, finely 
and sparsely punctured. Length 3 mm.; .12.inch. 
Tampa; one specimen. The 5th ventral segment is widely 
coneave at the tip. This species is not closely allied to any 
other known to me in our fauna; the middle 610189 are angu- 
late on the outer margin as in Œ. thyamoides Crotch. 
106. Argopistes scyrtoides. n. sp.—Circular, not very convex, 
rufous, extremity of hind thighs, and the upper surface black, shining. 
Head brown. Prothorax very short, deeply emarginate in front, rounded 
at base, finely punctulate ; a curved, transverse, rufous band extends from 
the base each side, near the hind angles; the sides are also rufous. Elytra 
scarcely perceptibly punctulate, marked with distant strie composed 
of extremely fine punctures; each with a large, triangular, rufous spot, 
with the apex in front, extending to the suture behind the middle. Length 
3,4 mm.; .185 inch. 
Florida ; two specimens given me by Mr. Ulke. The re- 
semblance of this insect to a small Exochomus is marvellous. 
The genus is also remarkable for having occurred thus far only 
in north-eastern Asia. The mesosternum is entirely con- 
cealed between the pro- and metasternum, and the latter is 
very short. The hind thighs are immensely large in propor- 
tion to the size of the insect. Though the next species has 
not occurred as yet in Florida, its geographical distribution 
renders its appearance there very probable. 

