11. C. FALL 
275 
ino foi' study one of Kirl)y’s two orioinal tyj)OS of (1. vcntralis, 
without which it would have Ix'Oii iiiipossil)l(^ to identify the 
s])ecies. 1 have also received from them authoi'itative examph's 
of corpiilentii.s R,esiml)art and picipes Aulie. 
The followinfi; descriptions will be found very short. The 
frreat g-eneral similarity of the different species makes it neces- 
sai’y only to select such features as ai'e of most valiu' for com- 
parative purposes, and these takem in conjunction with the 
('xtremely impoi-tant genitalic characters, will as a ruh' be 
amply sufficient for definite identification. A more genei-al use 
of fj;enitalic characters might have been advantageously made 
in the tabulation of the species, Imt I have refrained from doing 
so for obvious reasons. It is recommended, how-ever, that in 
at least one male of each species these organs be dissected out 
for comparison with the figures on the plate and for future 
reference. 
The measurements of length given are from the anterioi- 
margin of the head to the elytral apex. The measurements 
given by Le Conte and other of the older authors include the 
variable visible abdominal apex and are therefore somewhat in 
excess of these here given. 
All types of new species are in the writer’s collection. 
Table of Species 
1 . Scutellum with short, fine, basal carina - 
rfcutellum completely non-carinate •> 
2. Jiody beneath rufous, venter usually darker brown or piceous with the 
anal segment i)aler; mesosternum distinctly sulcate. . 1. ininulus 
Body beneath nearly uniformly testaceous or rufo-testaceous; mesoster- 
num more feebly or vaguely sulcate 2. rockiiu/hdincnsis 
2. Body beneath, including tlie hypomera and epii)leura, testaceous or 
ferruginous 1 
Bod}^ beneath metallic black, the hypomera and ('pipleura testacc'ous or 
rufous I'' 
Bod}’ beneath entirely metallic black or virtually so, the sides of tlu' 
ventral segments rarely (pugiotii.'s) dull rufous, the ejjipleura noi'iually 
showing no more than an obscure rufous tint in certain lights 21 
■1. Bleventh elytral stria relatively remote from the margin, body benealli 
of nearly uniform tint ’ 
I'lleveuth elytral stria ((uite close' to the margin (a little more' distant in 
confinis and especially so in hijaritoi) 
TRANS. AM. ENT. SOC., XL^’II. 
