130 Bulletin of the Brooklyn Entomological Society Vol. XIV 
third longer than wide, slightly wider behind the middle, thence evenly 
arcuate to the apex; humeri, completely and broadly rounded; elytra 
striate, first only entire; strie rather coarsely and deeply punctate on basal 
half, more or less obliterated, posteriorly. Third interval with two punc- 
tures, one at basal, the other at apical one third. Eighth stria indistinct 
from the margin and strongly impressed. 
Length 3 mm.; width I mm. 1 Q. 
This species is closely related to B. muscicola, Hayw. It is 
most easily distinguished by its smooth, not alutaceous head and 
general coloration. In addition, the thorax is proportionally 
smaller with the sides more distinctly sinuate and the elytral 
humeri more strongly rounded. Its peculiar style of elytral macu- 
lation distinguish it from the species hitherto described in the 
variegatum (Notaphus) section of the genus. A species from 
California (Truckee), novellum Csy. (Mem. Col., VIII, p. 113), 
is similar in form, but the elytra are differently marked and the 
strial punctures are said to be finer externally.. The punctures in 
semicinctum are coarser externally. 
Tachys incurvus Say (9). 
Patrobus longicornis Say (3). 
Pterostichus lucublandus Say (5). 
Pterostichus caudicalis Say (1).. 
Pierostichus corvinus Dej. (18). 
Calathus corvinus Lec. (1). 
Platynus sinuatus Dej. (1). 
Platynus cincticollis Say (1). 
Platynus reflexus Lec. (1). 
Platynus extensicollis Say (1). 
Platynus cupripennis Say (1). 
Brachinus cordicollis Dej. (1). 
Chlenius sericeus Forst. (7). 
Chlenius tricolor Dej. (8). 
Chlenius pennsylvanicus Say (2). 
Brachylobus lithophilus Say (2). 
Harpalus erraticus Say (1). 
Harpalus vagans Lec: (4). 
+) or 
