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Vigna Taglianti, 1972:118, 121-127, fig. 3-5;Reddell, 1973a:35, 41; Reddell and Elliott,1973b:182, 186; Vomero, 1974:351,353; Erwinet al., 1977:24; Vigna Taglianti, 1977:326, 333,338; Rossi and Cesari Rossi, 1977:374,376.Mexaphaenops: Sbordoni and Argano, 1972:8.Mexaphenops intermedius: Mitchell and Kawakatsu,1973a:673 (erroneous spelling).Paratrechus: Peck, 1973c:129 (misidentification).Type-locality.-Cueva de la Capilla, 13.5 km NWof Gomez Farias, Tamaulipas, Mexico.Distribution.-Known from two caves 10 theSierra de Guatemala, Tamaulipas. See Fig. 78.Records.-Tamaulipas: Cueva de la Capilla andCueva de la Mina.Discussion.-This species has been taken frommoist flowstone and among rotten wood. Barr (1971)considers this species to be intermediate in severalrespects between the more generalized M. elegans andthe highly specialized M. prietoi. It has been taken ingeneral association with Platynus (Mexisphodrus) profundusand Ptomaphagus (Adelops) troglomexicanus.GUATEMALA///r'\.... r'.--Fig. 78.-Distrihution of troglobitic and troglophilic carabid beetles of the tribe Trechini: 1, Mexaphaenops prietoi; 2,Mexaphaenops n. sp. 1; 3, Mexaphaenops n. spp. 1-3; 4, Mexaphaenops intermedius; 5, Mexaphaenops jlShi; 6, Mexaphaenopselegans and Paratrechus (Hygroduvalius) pallescens; 7, P. (Paratrechus) tepoztlanensis; 8, Paratrechus (Paratrechus) n. sp.;9, P. (P.) me:ricanu.r; 10, Mexitrechus coarctatus; 11, Chiapadytes bolivari; 12, Mayaphaenops sbordonii.222