i” 
1878. ] 565 ‘|Horn. 
As thus arranged the species show a very natural transi- 
tion from Hudesma to Lasconotus, carinata having the semi- 
cylindrical form of the first, while su/cata by its antenne 
makes a feeble approach to the second. 
D. carimata Lec. (Hulachus) New Species, 1863,- p. 68. 
Elongate, semi-cylindrical, black, opaque. Head granulated, opaque. 
Thorax longer than wide, slightly narrower at base, apex feebly emargi- 
nate, angles obtusely rectangular, sides straight, margin obsoletely crenu- 
late, base arcuate at middle, hind angles rectangular, disc convex, and with 
four moderately elevated carinz, intervals granulate. Elytra parallel, not 
wider than the thorax, four discal carine moderately, margin more acutely 
prominent, intervals flat, biseriately, coarsely puactate and rugulose. Body 
beneath scabrous. Legs and antenne rufous. Length .12 inch; 3 mm, 
The elevated costze are finely punctured at their summits, 
and bear short yellowish hairs. This species reproduces 
closely the figure given by Lacordaire (Atlas pl. 20, fig. 2) 
and the two may be identical, but comparison will be neces- 
sary. I do not find the first ventral segment sufticiently 
long to place this insect in the Colydiini (see. Er.), and from 
the study of our genera it seems to me that Erichson had 
rather vague ideas as to what constituted a long segment, 
and that this term was used very empirically without any 
intention of its being literally interpreted. 
Occurs in Georgia and Florida. 
D. quadriguttata Say, Journ. Acad. V, p. 266; Zimmermanni 
Guer. Ic. Regn. Ins. p. 194. 
Oblong elongate, pitchy black, opaque. Head granulate, sparsely pu- 
bescent. Thorax broader than long, slightly narrower at base, apexéfeebly 
emarginate, sides nearly straight, margin obsoletely crenulate, disc with 
four moderately elevated carine, each curved inwards in front, the two 
median ones united, forming an arch, intervals granulate, sparsely pubes- 
cent. Elytra slightly wider than the thorax, four discal costee and margin 
acutely elevated, intervals biseriately, coarsely punctured; color black, 
each elytron with three or four rufous spots. Body beneath pitchy black, 
legs brownish. Abdomen with coarse punctures longitudinally sub-con- 
fluent. Length .10-.12 inch ; 2.5-3 mm. 
The summits of the elytral coste are fringed with short, 
yellowish pubescence. 
Occurs from the Middle States to Lllinois and Texas. 
