316 NEW YORK STATE MUSEUM 
aa Head occasionally, thorax never, pubescent 
b Elytra truncate or subtruncate 
c Form decidediy flattened, mesosternum about as broad as each coxa 
d Thorax narrowed in front; posterior femora pluridentate in the 
intale, simple in the female... ...«<..«:aseseseseEeee floridae 
dd Thorax quadrate, or wider in front; posterior femora dentate in 
both sexes, the male often bidentate or tridentate 
e Antennae with the second and third segments nearly equal 
cine tieornis 
ee Antennae with the third segment much longer than the second 
f Elytra truncate; first ventral segment of the male not de- 
pressed at middle 
g Anterior tarsi of the male dilated............. palmata 
gg Anterior tarsi of the male simple....... .. hy pebemes 
ff Elytra subtruncate; form more convex; first ventral segment 
of the male depressed at middle........2.... Dis ¢€ Zit 
cc Form more convex; mesosternum narrower than the coxa 
d Eyes of normal size; sutural margin of the elytra straight, except 
in Gis tine ta 
e Thorax punctate, not, or scarcely, tuberculate 
f Thoracic punctures coarse, uniform; median furrow not dis- 
tinct and punctured at bottom 
g Second and third segments of the antennae subequal 
SUbtitss 
gg Second segment of the antennae about one half the length 
Of the third 152 ce ae ake yi do a oh a/ayel phe aa rugosal 
ff Thoracic punctures uneven, thorax rugose with punctures 
between the rugosities; median furrow distinct, entire, and 
not punctured at bottom. ©... .. ....e eee porosicollis 
ee Thorax uneven on the disk, tuberculate on the sides 
f Sutural margin of the elytra straight 
g Elytra with transverse indentations.......... aequalis 
gg Elytra not with transverse indentations; posterior femora 
of the male dentate, simple in the female 
tuberculata 
ff Sutural margin of the elytra sinuate........... distinerca 
dd Eyes small; thorax tuberculate; sutural margin of the elytra 
SinUWate.. 2. velge ws Se are cw aioe eee ee ener Seen harrisit 
bb Elytra rounded at tip; the sutural margin sinuate posteriorly; form 
convex; mesosternum narrow 
c Thorax depressed without basal and medial grooves 
d Posterior femora dentate in both sexes. ...... 205 eee pusiti-z 
dd Posterior femora dentate in the male only........ femoralis 
cc Thorax convex, punctured, and with an evident basal and a more 
or less evident medial groove 
1This form is considered a variety of subtilis by Mr Leng, but, if — 
the character given above is worthy of group value in the case of cinc- 
ticornis, palmata; hypoleuca, and piscatrix, I ¢an 
see no reason why rugosa_ should not be entitled to specific rank, and 
have so considered it here. 
