1974] 
Peck — Catopocerus 
381 
normally sampled, and this deep soil habitat will bring the beetles 
into frequent contact with rock crevices filled and partly filled with 
soil, which may open into caves with their cool and moist conditions. 
Hence, in the southern Appalachians, caves can be a more convenient 
sampling site for soil inhabitants which are usually hidden under a 
concealing thickness of soil. Other such montane soil inhabitants that 
are infrequently found at lower elevations except in caves are Anil- 
linus carabids (Barr, 1969) and Arianops pselaphids (Barr, 1974). 
Collecting in prolonged wet weather or during winter months might 
find all of these beetles closer to the surface in the Cumberland 
Plateau or Highland Rim regions of Alabama and Tennessee. 
Artificial key to the Catopocerus 
1 a. Body length 4mm or over C. hamiltoni 
ib. Body length 3mm or under 2 
2a. Hind tibia with setal bearing excavation on dorsal posterior sur- 
face (fig. 2) C. alabamae , n. sp. 
2b. Hind tibia with setae only, no excavation on dorsal posterior 
surface 3 
3a. Third antennal segment clearly longer than second, five clearly 
larger than four and six; northeastern Alabama C. jonesi, n. sp. 
3b. Third antennal segment as long as or only slightly longer than 
the second, five the same size as four and six; widely distributed 
4 
4a. Tip of aedeagus curved downward, forming 8o° to iOO° angle 
with ventral surface of aedeagus (Fig. 4) C. ulkei 
4b. Tip of aedeagus only slightly curved downward, angle with ven- 
tral surface of aedeagus 135 0 or greater (Fig. 6) 
C. appalachianus , n. sp. 
Catopocerus hamiltoni (Horn) 
Fig. 3 ; Map 2 
Pinodytes hamiltoni Horn, 1892:45. Lectotype here designated as female 
in MCZ, Horn colln. (no. 3027), seen. Type locality: “vicinity of Allegheny 
City”, Pennsylvania. 
Figures 1-11. 1, habitus of Catopocerus appalachianus. 2, metatibia of 
C. alabamae. 3, aedeagus of C. hamiltoni. 4, side of aedeagus of C. ulkei. 
5, ventral tip of aedeagus of C. ulkei. 6, side of aedeagus of C. appala- 
chianus. 7, ventral tip of aedeagus of C. appalachianus. 8, side of aedeagus 
of C. jonesi. 9, ventral view of aedeagus of C. jonesi. 10, side of aedeagus 
of C. alabamae. 11, ventral view of aedeagus of C. alabamae, tip incom- 
plete because of damage in dissection. Scale line for figs. 3-11 only. 
