110 Trans. Acad. Sci. of St. Louis. 
toward the sides as usual; elytra quadrate, a third wider and a fifth 
longer than the prothorax, the punctures rather fine but distinct and 
somewhat close-set. Male with sexual characters nearly as in rubripennis, 
the third ventral narrowly and just visibly impressed along the middle, 
the fourth less narrowly and more strongly, the fifth still more strongly 
though not deeply, the sixth convex, more densely pubescent as usual 
toward the middle and apex, the latter very broadly and obtusely 
bilobed, the lobes separated by a broad shallow and acutely cuspidiform 
emargination; female not known. Length 6.8 mm.; width 1.2 mm. 
New York (near the City)... -ccssesscccecceccececsee oe ALITANS D. SD. 
Body nearly similar in form but larger; head longer than wide, finely, 
rather closely punctate toward the sides, the latter converging and 
nearly straight for only the length of the large eyes behind them, then 
broadly arcuate across the base; antennae in the female as long 
as the head and prothorax, moderately slender, the medial 
joints fully twice as long as wide; prothorax rather broad, much 
wider than the head, about a fifth longer than wide, the sides parallel 
and broadly arcuate, the punctures only moderately coarse but deep 
and rather close-set; elytra quadrate, fully as long as wide, parallel, 
about a third wider but only very slightly longer than the prothorax, 
the punctures fine, rather feeble and closer than usual; abdomen 
slightly narrower than the elytra. Male unknown; female with a nar- 
row produced and evenly rounded apical lobe of the sixth ventral, the 
surface with a distinct narrow impression along the median line just 
behind the middle, extending only to the base of the lobe. Length 
7.5 mm.; width 1.25 mm. Texas (Austin).............tetricus n. sp. 
14— Head in the female broadly truncate and arcuate at base, subequal in 
width to the prothorax. Body moderately slender, deep black through- 
out the body, legs and antennae, the tarsi slightly paler; head broad, 
barely as long as wide, the sides parallel and nearly straight for the 
length of the eye behind the latter, then moderately broadly rounded 
through the basalangles,the base feebly arcuate; eyes moderate, at nearly 
twice their own length fromthe base, the punctures very fine; antennae 
longer than the head and prothorax, the medial joints about two-thirds 
longer than wide; prothorax rather small and broad, but little longer 
than wide, just visibly wider than the head, parallel and feebly arcuate at 
the sides, the punctures moderately coarse, strong and somewhat close- 
set; elytra parallel, slightly elongate, rather strongly and moderately 
closely punctate, two-fifths wider and two-fifths longer than the pro- 
thorax; abdomen distinctly narrower than the elytra. Male not at 
hand; female with the sixth ventral broadly rounded and feebly lobed 
at tip, not impressed. Length 6.0 mm.; width 1.05 mm. Vancouver 
Toland .oicccsin ced 1bsk sped US babe Cb MCAS TEEN Ube bb bce ceo ee 260. 
Head in both sexes semicircularly rounded at base, the species smaller 
and narrower In LOT: 6s ob cod Vedi Kew bens heen ve senveseea seenesevav le 
15— Eyes smaller, situated at about twice their own length from the 
base — measured on the median line. Body rather narrow, intense 
black throughout, the legs and antennae concolorous, the tarsi piceous- 
black; head slightly elongate, broadly arcuate from the eyes through 
the base, becoming nearly parallel for fully the length of the eye be- 
