Casey — A Revision of the American Paederini. 35 
than the head, distinctly longer than wide, parallel, the sides feebly 
arcuate medially, the punctures coarse and rather close; elytra dis- 
tinctly elongate, two-fifths wider and a third longer than the prothorax, 
coarsely, closely and confusedly punctured, the punctures decidedly 
smaller toward the sides and tip; abdomen finely but strongly, rather 
closely punctate. Male with a short transverse straight and strongly 
setose fold behind the middle of the second ventral and occupying about 
median eighth to tenth of the width, the third with a moderate circular 
setose fovea before the middle, the lobe large, extending beyond the 
apex of the fourth, evenly rounded at tip and occupying more than 
median two-fifths of the width; sixth broadly rounded, the apical mar- 
gin becoming just visibly sinuate at the middle. Length 8.4-10.5 mm.; 
width 1.22-1.6 mm. Texas (Houston, Austin and El Paso), Iowa 
(Keokuk), Indiana, Arizona (Tu¢gson) and California (Needles). 
pimerianum Lec. 
Form and coloration -similar to pimerianum, the punctuation less dense; 
head well developed, subequal in width to the elytra, parallel and with 
the sides feebly arcuate for some distance behind the eyes, then broadly 
rounded to the neck; punctures moderately coarse and not very close- 
set, separated, except at the sides, by fully twice their own widths; 
prothorax as in pimerianum but more sparsely and feebly punctate; 
elytra similar and similarly punctured but rather less closely, the ab- 
domen also more sparsely punctulate above and beneath. Male with a 
transversely arcuate setose fold, much longer than in pimerianwm, behind 
the middle of the second ventral and occupying about median sixth of 
the width; third with a rather larger and more transversely elliptical 
setose fovea, moderate in size, just before the middle, the lobe obsolete 
in specimens athand. Length10.5mm.; widthl1.6mm. Iowa. [=caro- 
linum Er. (Lec.) — erroneous determination]. ........-.-lecontei Horn 
13 — Abdomen black, the last two segments abruptly pale rufous. Body not 
very stout, the head black; prothorax and elytra bright rufous, the 
latter usually clouded with piceous toward the suture except at apex; 
legs pale; head parallel and feebly arcuate at the sides, the basal angles 
broadly rounded, not quite as wide as the elytra, the punctures rather 
coarse deep and close-set, separated by slightly more than their own 
widths; prothorax but slightly elongate, distinctly narrower than the 
head, parallel, only very slightly narrower at base than at apex, the- 
punctures coarse, strong and rather close; elytra distinctly longer than: 
wide, two-fifths to nearly a half wider and two-fifths longer than the: 
prothorax, moderately coarsely and closely, irregularly punctate; ab- 
domen slightly narrower than the elytra, strongly but not densely punc- 
tulate. Male with the setose fold of the second ventral occupying 
about median seventh, the rounded fovea of the third large, the lobe 
rather long and narrow, extending beyond the tip of the fourth segment 
and occupying scarcely more than median third of the width; sixth 
segment rather narrowly rounded at tip; fold of the second ventral in 
the female much smaller than in the male. Length 9.8 mm.; width 
1.6mm. New York to North Carolina and Iowa ........ bicolor Grav- 
Abdomen uniform in color throughout, sometimes very slightly paler at 
tip.... COSTE EH SHHH SHES DEH THESE HHS EH HHHEHEHE HEH BOBO BE eees . vere kt 
