Casey — A Revision of the American Paederini. 127 



segmental apex arid with its anterior angle narrowly rounded. 

 Length 6.7 mm.; width 1.15 mm. Middle States polita Grav. 



Body similar to the preceding but still stouter, parallel, scarcely so con- 

 vex, bright rufo-testaceous throughout and shining, the abdomen 

 blackish-piceous, paler andrufescent at apex; head similar but broader, 

 the basal angles more broadly rounded, the eyes sensibly larger, at 

 barely twice their own length from the base, the punctures almost as 

 coarse but denser toward the sides and sparser medially, the antennae 

 nearly similar but with the medial joints rather more elongate; pro- 

 thorax smaller and shorter, distinctly narrower than the head, not ob- 

 viously longer than wide, the sides feebly converging from apex to base 

 and broadly arcuate throughout, the punctures moderately coarse and 

 sparse, not more densely aggregated near the median smooth space; 

 elytra rather more elongate, parallel, a fourth wider than the prothorax 

 and nearly a third longer, less coarsely, rather more sparsely and still 

 less serially punctured; abdomen broader, nearly as widens the elytra, 

 rather less coarsely but almost as closely punctulate. Male with the 

 surface of the fifth and sixth ventrals nearly as in polita, having a nar- 

 row glabrous median line throughout, but the fifth is less distinctly sin- 

 uate toward tne middle of the apex and the surface is feebly impressed 

 along the glabrous area near the apex; the notch of the sixth is more 

 equilateral, fully three -fifths as wide as the apex, distinctly wider than 

 deep, with its anterior angle slightly blunt. Length 6.4 mm. ; width 1.18 

 mm. Florida (Crescent City) floridae n. sp. 



11 — Body very depressed, the legs black with the tarsi paler ; antennae very 

 long and slender, with the medial joints much more than twice as long 

 as wide; surface shining; head small, coarsely, very sparsely punctate 

 laterally, broadly subimpunctate medially, rather wider than long, the 

 sides nearly straight, feebly converging from the eyes to the basal 

 angles, which are obtuse but only slightly rounded; eyes well devel- 

 oped; antennae black, almost half as long as the body, scarcely per- 

 ceptibly incrassate toward tip ; prothorax much wider than the head, 

 only slightly longer than wide, the sides feebly converging from the 

 apex and very slightly arcuate, broadly arcuate toward base, the 

 punctures fine but distinct, very sparse, narrowly more aggregated 

 along the median smooth line; elytra but little longer than wide, 

 parallel, a third wider and longer than the prothorax, the punctures 

 fine, rather sparse, partially serial in arrangement; abdomen distinctly 

 narrower than the elytra, finely and closely punctulate. Male with the 

 fifth ventral wholly unmodified, the apex rectilinearly truncate through- 

 out, the sixth evenly and rather strongly rounded at tip, with a small 

 triangular and rather abruptly formed emargination, about a sixth as 

 wide as the base of the segment and rather deeper than wide, with its 

 anterior angle slightly blunt, the surface with a narrow and simple 

 glabrous cylindric impression along the median line throughout, the 

 edges of the impression obtusely rounded; female with the sixth ven- 

 tral broadly angulate at tip. Length 6.5 mm.; width 1.18 mm. Cali- 

 fornia (Lake and Siskiyou Cos.) californica Lee. 



Body normally convex, the legs and antennae pale; antennae shorter, less 

 slender and more incrassate, not longer than the head and prothorax, 



