1931 ] Carabidx from North Carolina and Tennessee 149 
Scaphinotus guyoti Lee. 
(angelli Bent.) 
Not taken by the Museum of Comparative Zoology ex- 
pedition. Described from “The Black Mountains of North 
Carolina . . . resembling in its characters C. andrewsi, 
but as large as C. viduus” (from original description, Le- 
conte, 1866). The only specimens I have seen in addition 
to the type are a pair ( $ $ ) in the Blanchard Collection, 
Museum of Comparative Zoology, from Highlands, N. C. 
The relationship of this species to confusus Dari, (see key 
above) parallels very closely that of S. andrewsi to S . ger- 
mari , as interpreted by Roeschke (1907). 
It is to be noted that Roeschke did not know guyoti, but 
drew his description from those of several authors who 
failed to distinguish confusus from guyoti. 
Nomaretus (Maronetus) unistriatus n. sp. 
Of the general form and structure of the subgenus, some- 
times called genus, Maronetus; i. e., of the imperfectus 
group of Nomaretus. 
Piceous black, strongly shining. 
Head as usual in the subgenus, constricted just behind 
the eyes but expanded posteriorly to form a condyle. 
Prothorax as long as wide, about 1.6 times as wide as 
head, widest about the middle; sides broadly arcuate in 
anterior %, converging but slightly sinuate before the ob- 
tuse basal angles ; base and apex nearly squarely truncate. 
Disc of pronotum smooth and shining, with deep basal and 
shallower apical transverse impressions, the two connected 
by a median impressed longitudinal line; pronotum with 
also a short, deep sublongitudinal impression on each side 
near the basal angle. Raised lateral margin of pronotum 
very fine and even ; each margin with two setigerous punc- 
tures, one about Ve from apex and one a little before base. 
Elytra widest well before the middle, outer margin 
strongly arcuate anteriorly, slightly and nearly evenly 
arcuate posteriorly to the pointed but not produced apex. 
All striae completely obliterated except the sutural, which 
