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 inf uscate, paler toward base and apex 12 



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) floridanus n. 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 as long as wide. Body rather stout, deep black throughout, 

 the external apical angles of the elytra abruptly and clearly pale flivo- 

 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 aud 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 annularis Lee. 



