46 Trans. Acad. Sct. of St. Louis. 
mally pubescent and only very feebly impressed; female not differing 
much from the male, the head a trifle smaller, the sixth ventral broadly 
and very obtusely rounded at tip. Length 9.8 mm.; width 1.6 mm. 
Rhode Island to lowa......+s+sccecccercccsccecesecece pPallipes Grav. 
Male with the apex of the fifth ventral truncate or feebly sinuate, not den- 
CAO ddenoeces AAS ¢|8' ine i 6d: b. Gb 6 eee om whee dot eee TR Ro ewe ik ot 
8 — Body large in size and stout, black throughout, the legs pale, the anten- 
nae dusky; head longer than wide, about as wide as the elytra, the eyes 
relatively small and only moderately prominent, the punctures strong 
and rather close-set; prothorax large, longer than wide, parallel, only 
slightly narrower than the head, the sides feebly arcuate: punctures 
rather small and moderately close, not so uneven in distribution as in 
the Pacific coast species; elytra quadrate, parallel, not longer than 
wide, equal in length to the prothorax in the male, a little longer in the 
female, about a fourth wider, the punctures rather small but strong, 
close-set and confused throughout; abdomen as wide as the elytra, finely, 
densely punctate above and beneath. Male with the fifth ventral feebly 
sinuato-truncate, the sixth with a large triangular emargination, as 
wide as deep, the angle acute, the surface in prolongation anteriorly 
broadly flattened, polished and glabrous; female differing but little, the 
sixth ventral broadly, feebly arcuate at apex. Length 11.0 mm.; width 
1.85 mm. New York toNorth Carolina, Iowa and Missouri..capito Csy. 
Body very much smaller, less stout and fusiform, rather convex, polished, 
the vestiture less conspicuous, black, the prothorax and elytra paler, 
rufo-piceous; legs and antennae pale flavous; head small, elongate, 
much narrower than the elytra, only slightly inflated behind the eyes, 
with the sides broadly arcuate, the eyes well developed but not very 
prominent, the punctures strong but uneven in size and well separated; 
neck nearly three- fourths as wide as the head; prothorax large, slightly 
longer than wide, very nearly as wide as the head in the male and wider 
than the latter in the female, parallel, with the sides broadly, evenly 
arcuate, the punctures sparse, moderately coarse, impressed; elytra 
barely as long as wide, parallel, as long as the prothorax and distinctly 
wider, the punctures small but strong, confused throughout and un- 
usually well separated; abdomen as wide as the elytra, rather tapering 
behind the middle, finely, rather sparsely punctate throughout. Male 
with the fifth ventral evenly and almost rectilinearly truncate, the sixth 
with a large, evenly triangular emargination which, as in the two pre- 
ceding species, occupies the entire width of the apex, its sides nearly 
straight, the angle obtuse, but not distinctly rounded, the notch more 
than twice as wide as deep, the surface adjoining anteriorly not im- 
pressed but with a small dull patch which is minutely and transversely 
rugulose; female differing but slightly, the sixth ventral narrower and 
obtusely rounded. Length 7.5-8.0 mm.; width 1.3-1.4 mm. New 
YOUK cccnccccpcsncdabsndecaeicstuashedeienee be caus celae ssi RRGrNe LOG, 
9 — Pronotum alutaceous because of a very minute and regular micro-retic- 
TUIBTON + dc vvctcvesncn cee vcnsie'he sleipedhe bebbmeicese bewde dedenecanes. 10 
Pronotum highly polished, without trace of minute sculpture of any kind; 
ANTENDRE NOFMAl 604.0 veenseduc pdicnsoesnes seussiesaseshdeteeboeseuves. LL 
10 — Antennae evenly and gradually incrassate throughout from the end of 
