( 
V 
28 ) 
dug at its anterior tips into a more dilated spot between the 
eanthus of the eye and the nasiis, which is yellow excepting 
the anterior edge ; above the nasus on each side is an orbi- 
cular, punctured indentation; front each side at the eye witfi 
an indented, punctured line : thorax with a broad yellow 
margin; dorsal line acute, distinct, not extending upon the 
margins ; a line of impressed punctures on the anterior mar- 
gin interrupted in the middle; lateral margin not at all de- 
pressed : scutel honey-yellovv^ on the posterior submargin : 
elytra with three series of impressed punctures ; the exteri- 
or series less distinct; general puncturation near the tip 
much larger and more obvious ; posterior margin yellowish 
with an obsolete undulated branch proceeding obliquely to- 
wards the tip : beneath varied with blackish, piceous and 
yellow. 
Length one inch. 
A male of this species was taken by Win. Bennett in the 
River beyond Vera Cruz, and, together with the two fol- 
lowing, presented to me by Mr. Wm. Maclure. It is alli- 
ed to the D. marginalise F. but that species in form ap- 
proaches the ovate; the present also is much smaller and 
oval. 
3. T). bimarginatus, Black; head and thorax rufous; 
elytra with a yellow vitta on the lateral sqbmargin. 
Inhab. Louisiana. 
Body oval, blackish : head honey-yellow, posteriorly 
black; palpi and antennm yellowish : thorax honey yellow; 
posterior margin black, which is more dilated on the middle 
half: elytra with three series of distant slight punctures ; on 
the lateral submargin a yellow vitta, which passes a. short 
distance on the humeral base, and posteriorly diverges a 
little from the margin, attenu^-tes, and does notreach the tip; 
margin and epipleura dull rufous, not reaching the tip : be- 
neath piceous black : pectus and anterior feet yellowish ; 
terminal joints of the tarsi piceous: posterior pairs of feet 
piceous ; intermediate thighs dull yellow : venter each side 
with obsolete piceous spots. 
Length less than half an inch. 
For this species I am indebted to the politeness of Mr. J. 
Barabino, who sent it to me from New Orleans. 
