108 Trans. Acad Sci. of St. Louis. 
9 — Head not distinctly narrowed behind the eyes in the male; antennae 
long, more or less slender, much longer than the head and prothorax.10 
Head obviously narrowed gradually from the eyes to the rounded base; legs 
pale; antennae infuscate, paler toward base and apex........seeeeeeel2 
10 —Small species, unusually slender in form, dark piceous in color, the 
head and abdomen black, the elytral apex narrowly, more broadly ex- 
ternally, and legs, very pale; antennae fuscous, pale toward base and 
apex; head a little longer than wide, the sides subparallel and feebly 
arcuate for a long distance behind the eyes, the base broadly, subcir- 
cularly rounded; eyes moderate, at fully twice their own length from 
the base; punctures fine and rather sparse laterally, broadly wanting 
in the middle; antennae long and slender, nearly half as long as the 
body, the medial joints twice as long as wide; prothorax distinctly 
elongate, parallel and feebly arcuate at the sides, the angles broadly 
rounded, just visibly wider than the head, rather coarsely but feebly 
and somewhat sparsely punctate, the median impunctate line unusually 
wide; elytra well developed, parallel, slightly elongate, one-half wider 
and a fourth longer than the prothorax, rather finely feebly and sparsely 
punctate; abdomen distinctly narrower than the elytra, densely punc- 
tulate and dull as usual. Male unknown; female with the sixth ventral 
obtusely rounded at tip, unimpressed. Length 4.5 mm.; width 0.78 
mm. Florida (Capron) .....esscccecccccce scccee eos flOFidanus D. sp. 
Species larger in size and stouter, not less than 6 mm. in length.........11 
11— Antennae in the male longer, the medial joints nearly two and one-half 
times as aslong as wide. Body rather stout, deep black throughout, 
the external apical angles of the elytra abruptly and clearly pale flavo- 
testaceous; legs very pale; antennae blackish, except the pale first 
and eleventh joints; head rather well developed, not much longer than 
wide, subparallel and feebly arcuate for about one length behind the 
eyes, the base thence semicircular or feebly subtruncate toward the 
middle; punctures minute and rather close-set, wanting at the middle 
of the vertex; eyes well developed; antennae longer than the head and 
prothorax, moderately slender; prothorax large and broad, only very 
slightly longer than wide, not very coarsely but strongly, rather 
sparsely punctate, much wider than the head, the sides broadly arcuate, 
the median smooth line rather ill-defined at the sides; elytra quadrate, 
not at all longer than wide, parallel, a third wider but only just visibly 
longer than the prothorax in the male, a little longer than wide and 
distinctly longer than the prothorax in the female, the punctures small, 
rather sparse and feeble; abdomen but little narrower than the elytra. 
Male with the second ventral slightly flattened, the third and fourth 
rather broadly and very feebly impressed along the middle, the fifth 
rather less broadly but less feebly impressed, the apex feebly sinuate at 
the middle; sixth with a small, acutely triangular notch, deeper than 
wide, about an eighth or ninth as wide as the apex, the surface somewhat 
elevated gradually — and more pubescent — toward the notch, not im- 
pressed, the apex truncate; female nearly as large but less stout through- 
out than the male, the sixth ventral with a narrowly rounded produced 
apical lobe. Length 7.0-7.7 mm.; width 1.2-1.25 mm. Massachusetts 
(Lowell) and Rhode Island.....-cseseecccseeceee ceeeee angularis Lec. 
