566 Bulletin American Museum of Natural History. [Vol. XXXIV, 
Ortega, September (Davis); Tampa (Engelhardt); Ormond, April 6 
(Blatchley); Enterprise, April (Davis Coll.), (Brownell); Lake City (Agl. 
Exp. Sta.) Marion Co., (Casey) Lakeland, Gainesville, September, March, 
April, May, November. Not rare, but apparently confined to Georgia. 
and Florida. 
Pasimachus opacipennis Casey. “ Florida.” 
Pasimachus sublevis Dejean. St. Augustine (Schwarz); Gainesville, 
September; Suwannee Springs (Slosson); Silver Springs, (Engelhardt); 
Dunedin, Sarasota, Sanford, January, February, under logs in sandy woods. 
(Blatchley); Enterprise (Brownell); Taylor Co. (Genung); Punta Gorda, 
under boards in pine woods (Davis); Lake Worth, Key West, (Casey). 
La Grange, June (Davis Coll.); Ortega, September, March, October, No- 
vember, in syrup trap and under boards. Reported as rare in the first. 
Florida list but apparently found frequently. Extends northward along 
the coast to Long Island. 
Pasimachus strenuus Leconte. St. Augustine, Crescent City 
(Schwarz); Gainesville, September; Ormond (Slosson Coll.); Ormond,. 
March 24, beneath chunk in open pine woods (Blatchley); Lakeland, Rital 
(Davis); Florida (Casey); La Grange, June, Enterprise, September (Davis. 
Coll.); La Grange, September (Davis); March, April, May, November. 
Peculiar to Florida. Not found in Alabama (Léding). ‘ 
The species of Pastmachus are found under logs, ete., under boards in 
damp meadow, under dry cow dung (Mr. Davis found one with a Canthon. 
in its jaws), and in bottles baited with syrup. They sometimes burrow 
deeply, Mr. Bischoff having found them at a depth of twelve inches. In 
addition to the four older species, all of which he recognizes, Col. Casey has. 
described (Memoirs on the Coleoptera, IV, 1913) two more species and. 
two subspecies, viz.: floridanus, opacipennis, robustus (subsp. of strenwus), 
and subnitens (subsp. of subsulcatus). The last two are based upon single- 
examples, and in the large series now accumulated, the characters used to. 
separate them tend towards becoming evanescent. The first two result 
from the dismemberment of the heterogeneous material heretofore called 
subsulcatus, the specimens with strong nearly equal sulci being floridanus- 
Casey, while those with smooth elytra are opacipennis Casey. The connect- 
ing link supplied by subsulcatus has led to the mass being heretofore regarded 
as one species but there is no evidence that such is the case and until such is. 
forthcoming Casey’s two species must stand. His subsp. robustus based 
upon a comparison between single specimens of it and strenuus may not 
stand, for in a larger series intermediate degrees of development partly at 
least bridge the differences he describes, robustus being a rather small speci- 
men with the elytral ridges moderately developed. His subsp. subnitens: 
