1974] 
Peck — Catopocerus 
385 
Female tarsomeres not expanded ; abdominal segments as in male. 
Variation. Table 1 presents meristic variation for the topotypic 
population. All populations examined which are assigned to this 
species have aedeagi of the males identical to aedeagi of the topotypic 
population but for two exceptions. The two samples from south- 
western North Carolina are 220 air miles to the southwest of the 
next nearest locality from which males have been collected. These 
southwestern collections differ in the angle of deflection of the aedea- 
gal tip, A distinct acute angle of about 8o° is formed between the 
ventral surface of the aedeagus and the tip of the aedeagus. All 
other populations possess aedeagi in which the angle is usually slightly 
obtuse. Only rarely is it a right angle. 
The variation of measurements for a sample of four males and 
eight females from Joanna Bald, Cherokee County, North Carolina, 
when compared to that in table 1, showed that the size of the south- 
ern populations is larger, but there is a great deal of overlap within 
the range of the measurements. Variation of the ratios, when com- 
pared to the topotypic population shows less difference, and that which 
does exist is contained within an overlap of one standard deviation 
from each mean. This numerical data demonstrates little or no 
difference from the topotypic C. ulkei. Since there is a large gap in 
knowledge of the range of the species between western Virginia and 
southwestern North Carolina, I am unwilling to interpret the taxo- 
nomic significance of the greater curvature of the tip of the aedeagus 
in the southwestern North Carolina populations. It may be a distinct 
subspecies if its distribution is geographically separated from typical 
C. ulkei. Or the population may represent one end or segment of a 
cline of gradual deflection of the aedeagal tip. Further collecting 
may tell. 
Distribution. The species is known to occur in southwestern and 
southeastern Pennsylvania, the District of Columbia, Maryland, 
North Carolina, Virginia, and West Virginia (map 1). Future col- 
lecting might show it to be continuously distributed along the Pied- 
mont and eastern edge of the Appalachians to the southern known 
locality in Cherokee County, North Carolina. 
Material examined and habitat data. District of Columbia: no 
other data, 32. Washington, D. C., 1 ; 1.5, 1; 5.3, 1; Hubbard & 
Schwarz. Maryland: Garrett Co.; Deer Park, 4.7, 1, Hubbard & 
Schwarz; 2 mi. E. Keysers Ridge, 2500' elev., 18.vi.1968, S. Peck, 
3 in 220 lbs. log-stump litter. North Carolina: Cherokee-Graham 
County; Andrews, Joanna Bald, 4700' elev., 26.vii.1967, S. Peck & 
A. Fiske, 13 in 89 lbs rotted chestnut log; Joanna Bald, 5.viii.i96o, 
