324 PROCEEDINGS OF THE NATIONAL MUSEUM Vor. 113 
Discussion: The single species in this group agrees in all respects 
with the description of subgenus Desmoris (p.322) but, as was noted, the 
median lobe of the male genitalia is short (as in subgenera Smicronyx 
and Pachyphanes). 'The rostrum of the female, while long and rather 
straight, as in the S. fulvus group, is not very smooth or terete before 
the antennal insertions. Thus, while S. scapalis is apparently closely 
related to the rest of the species in subgenus Desmoris, it is so much 
less modified in certain respects that it is difficult to place it in either 
of the other two groups of species. Possibly this species represents an 
early group of Desmoris species which did not become as strongly modi- 
fied in the rostrum and genitalia, as did the S. fulvuus and S. constrictus 
groups. 
Map 17 gives the distribution of this group. 
fY 
Pa Map 17.—Distribution of the specimens 
2 meen examined of the scapalis group of Smt- 
\ \ cronyx. W&, S. scapalis. 
% 
Smicronyx scapalis (LeConte) 
FriaurReEs 93, 139 
Desmoris scapalis LeConte, Proc. Amer. Philos. Soc., vol. 15, p. 168, 1876. 
Type: Female, Kansas, MCZ 1885 (J. L. LeConte collection). 
Description: Rostra of both sexes reddish brown; sparsely squa- 
mose behind the antennal insertions; longer and more shining before 
the antennal insertions in the female than in the male. Head reddish 
brown to piceous, finely alutaceous, the front sparsely scaly. Anten- 
nae reddish brown, the club piceous in some specimens. Prothorax 
reddish brown to piceous, strongly rounded at the sides, narrowed and 
slightly constricted some distance behind the apex; disk closely but 
not coarsely punctate, the punctures arranged in concentric circles; 
scales broadly ovate, pale brown except for a few medium brown scales 
