New Trechine Beetles 1 23 



Pseudanophthalmus transfluvialis, new species 

 Fig. 5 



Etymology. — Latin trans-, "across," + fluvialis, "pertaining to a 

 river." 



Diagnosis. — Closest to P. menetriesi but heavily pubescent, sides of 

 head a little less rounded, pronotum narrower, prehumeral borders less 

 oblique and humeri more prominent, elytral intervals subconvex instead 

 of flat, striae distinctly impressed, disc not pruinose. 



Description.— Length 4.6-5.8, mean 5.2 ± 0.3 mm (N = 32). Head 

 about 0.15-0.18 longer than wide. Pronotum about as wide as long, 

 mean L/W 0.96 ± .03 (N = 32); disc pubescent, hind angles as in mene- 

 triesi. Elytra moderately convex (not vaulted as in pilosus or glo biceps, 

 nor flattened as in nominate menetriesi), about 1.6 times longer than 

 wide, pubescent; humeri stronger than in menetriesi (either subspecies), 

 intervals subconvex, striae deeper, strongly punctured; chaetotaxy nor- 

 mal (+++) and microsculpture not pruinose. Aedeagus 0.67-0.76, mean 

 0.69 ± .03 mm (N = 8), closely similar to that of menetriesi . 



Type series. — Holotype male (American Museum of Natural His- 

 tory) and 5 paratypes, McGinnis Cave, 4.2 km SW Bowling Green, 

 Warren Co., Kentucky (Bowling Green South 1%' Quadrangle), 26 Sep- 

 tember 1949, J. M. Valentine, W. B. Jones, I. C. Royer. Measurements 

 of holotype (mm): total length 5.52, head 1.01 long X 0.86 wide, prono- 

 tum 1.09 long X 1.09 wide, elytra 3.16 long X 1.99 wide, antenna 3.43 

 long, aedeagus 0.76 long. 



Distribution. — Described on 43 specimens from the type cave and 

 other caves in Bowling Green (Bypass, Horseshoe, State Trooper); the 

 westernmost limit is Wheeler Cave, 3.3 km northeast of South Union, in 

 eastern Logan County. The species appears to have a range that runs 

 along the base of the Dripping Spring escarpment from Bowling Green 

 to Wheeler Cave; it does not extend south into the range of P. princeps 

 (see Barr 1979b), but coexists with Neaphaenops meridionalis Barr and 

 P. loganensis Barr in all of the caves where it has been collected (Barr 

 1979b). The trivial name refers to the barrier status of Barren River at 

 Bowling Green, where the river separates P. menetriesi, P. striatus, P. 

 pubescens, and N. tellkampfi from P. transfluvialis , P. loganensis, and 

 N. meridionalis. 



Pseudanophthalmus cerberus cerberus, new species and subspecies 



Fig. 6 



Etymology. — Named for Cerberus, the mythical dog guarding the 

 gates of Hades, usually depicted with three or more heads; P. cerberus is 

 the most widely distributed of three closely similar species in south- 

 central Kentucky. 



