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Lindroth — Ground Beetles 
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Chester, Mass., designated as neotype and the place as type loc. — 
Chlaenius unpunctifrons [Bell i960, p. 136]. 
1815 (syn.) Chlaenius circumcinctus (1834: 418). Type area 
Louisiana. Say describes the irregular punctuation of the prothorax 
and the interpretation is certain. His name is a synonym of perplexus 
Dej. (1831), erroneously recorded from Africa (see Lth., 1 955 a > 
p. 25; Bell, i960, p. 145). A cf from Louisiana designated as neo- 
type . — Chlaenius perplexus Dej. [Bell i960, p. 145]. 
1817 Chlaenius pensylvanicus (1823b: 66). No type area given. 
(The name pensylvanicus is a manuscript name of Melsheimer and 
does not necessarily imply that Say’s specimens had the same pro- 
venience.) The description of color given by Say seems sufficient 
for an interpretation. A cf from Pennsylvania designated as neotype , 
and the state as type area. — Chlaenius pensylvanicus [Bell i960, 
p. 146]. 
1822 Chlaenius nemoralis (1823b: 65). Type area Pennsylvania, 
Georgia, or Florida; the last-named state herewith designated. Since 
the strikingly dull prothorax of nemoralis auct. is not mentioned by 
Say, the description could equally well be applied to tricolor Dej. 
(1826) with which it is commonly confused. I have followed Lee., 
according to his collection (MCZ), and Bell (i960, p. 140). A cf 
from Winter Park, Fla., designated as neotype, and the place as type 
loc. — Chlaenius nemoralis [Bell i960, p. 140]. 
1830 Chlaenius solitarius (1823b: 65). Type area “on the Mis- 
souri’’ (that is, the river). Say’s description of form and punctuation 
of prothorax, as well as of the “polished” elytra, seems to exclude 
related species. A cf from Dubuque, Iowa, designated as neotype, 
and the state of Iowa as type area. — Chlaenius solitarius [Bell i960, 
p. hi]. 
1838 Chlaenius aestivus (1823b: 62). No type area given. In 
Say’s description, the combination of large size, narrow prothorax, 
and bicolored upper surface seems to exclude all other species of the 
genus. A cf from Rosslyn, Virginia, designated as neotype , and the 
place as type loc. — Chlaenius aestivus [Bell i960, p. 120]. 
1842 Chlaenius laticollis (1823b: 64). Type area “Missouri” (pos- 
sibly including Nebraska). Say’s description is not conclusive. I 
have identified the species as defined by Bell (i960, p. 129). A 9 
from Tonganoxie, Kansas, designated as neotype. — Chlaenius laticol- 
lis [Bell i960, p. 120]. 
1856 Chlaenius emarginatus (1823b: 63). No type area given. 
Say’s remarks concerning the labrum: “deeply emarginated” and 
“profoundly and obtusely emarginate,” make his description conclu- 
