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is associated with rotten woods (Chandler, 1987,and many collection records), and may be foundwith ants in the northern half of its range (Park,1960). Park (1960) noted one population that wasfound in a cave in Alabama.Male globosus may be separated from uncicomisby the more broadly rounded anterior margin of thevertex, and by the form of the apical segments of theantennae. Females lack coarse punctures between thevertexal fovea on the head, and also on the pronotum,while in uncicomis coarse punctures will befound in both areas.8. Texamaurops reddelli Barr and Steeves(Figs. 17-19)Texamaurops reddelli Barr and Steeves, 1963: 118.Type locality: Kretschmarr Cave, Travis Co.,Texas. Holotype female (FMNH).Description.-Length 2.72-3.08. Male with vertexsmoothly merging into elongate frons, areasparsely setate with prominent antennal tubercles,base of vertex with median and lateral carinae distinctbut not prominent, lateral carinae reachingapex of antennal tubercles, median extending topoint anterior to nude vertexal foveae, all antennomereselongate, X with large nude fovea on ventralsurface near base, antennomere swollen in basalhalf, eye area a rounded angulation with approximately6 granules that appear to be vestigial eyefacets.Pronotum with median longitudinal sulcus faint,extending to near pronotal apex; elytra with 2 basalfoveae and subhumeral fovea; metasternum atmiddle with group of long sparse setae; metatibiaelacking apical pencil of setae, sternite VI laterallywith rounded tumuli bearing long setae that aredirected laterally.Females with lateral margins of antennomere Xstraight, lacking ventral fovea, sternite VI broadlyrounded.Male from Stovepipe Cave: antennae 2.12,metafemora 1.56, metatibiae 1.72, metatarsi 0.80.Specimens examined.-6: TEXAS: TravisCounty: Holotype female, Kretschmarr Cave, 15 mi.NW Austin, III-2-1963, J. R. Reddell, D. McKenzie(FMNH); 1 female, same locality, 1968, R. W.Mitchell (FMNH); 1 female, Tooth Cave, V-3­1964, J. R. Reddell (TMMC); 1 female, samelocality, V-14-1966, J. R. Reddell (FMNH); 1female, Amber Cave, IV-8-1984, J. Reddell, M.Reyes (DSC); 1 male, Stovepipe Cave, X-25-1990,L. Sherrod, under rock lightly buried in silty clay insmal1 side room in total darkness (DSC).Comments.-Texamaurops reddelli has onlybeen found in four closely situated caves on theunderside of rocks lightly buried in silt in totaldarkness (James R. Reddel1, pers. comm.), and hasbeen placed on the US. List of Endangered Species(Chambers and Jahrsdoerfer, 1988). It has elongatelegs and antennae with reduced eyes, and is clearly atroglobite. The holotype and the single male aredifferent from all the other specimens in possessingonly two basal foveae on each elytron. The otherfour specimens, including one from the typelocality, have three equal foveae at the elytral base.AI1 other features appear to be similar and these fourspecimens are placed as reddelli.Barr and Steeves (1963) initially believed thatthis genus might be best placed in the Amauropsini,a European tribe whose members are all troglobites.Barr later (1974) figured the aedeagus of a purportedmale, which clearly indicated the placement of Texamauropsin the Batrisini since the morphology ofthe aedeagus in members of the two tribes is quitedifferent (Jeannel, 1948). The male specimen inquestion has proven to be a new species of Batrisodesconvergent with Texamaurops in appearance,but discovery of a true male of Texamauropsconfirms the placement in the Batrisini since theaedeagus is similar in form to those of members ofBatrisodes. The absence of the metatibial pencil ofsetae is shared by members of BatriasymmodesPark, a group with a number of troglobitic speciesin the eastern United States, and some members ofthis group also have a fovea on antennomere X.However, the aedeagal form of this genus is consistentlydifferent from members of Batriasymmodes,and based on the form of the aedeagus andantennal characters Texamaurops is probably bestconsidered a lineage derived from Batrisodes thathas lost the metatibial pencil of setae.Texamaurops reddelli is superficial1y similar totexanus by the greatly elongate antennae and legs, aswell as body size. However, reddelli possesses adistinct rounded angulate knob where the eyesshould be, and the metatibiae lack an apical pencilof setae.9. Cylindrarctus bicomis Chandler(Fig. 20)Cylindrarctus bicomis Chandler, 1988: 135. Typelocality: Texas (probably Bosque County). Holotypemale (USNM).249