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Muchmore, W.B. 1992. Cavernicolous pseudoscorpions from Texas and New Mexico (Arachnida: Pseudoscorpionida). Texas Mem.Mus., Speleol. Monogr., 3:127-153CAVERNICOLOUS PSEUDOSCORPIONS FROM TEXAS AND NEW MEXICO(ARACHNIDA: PSEUDOSCORPIONIDA)William B. MuchmoreDepartment of BiologyUniversity of RochesterRochester, New York 14627ABSTRACTAll known cavernicolous pseudoscorpions from Texas andNew Mexico have been reviewed and studied. A key to representedgenera is provided. In addition to the 9 identified speciespreviously reported, 17 others are here recorded, including 9newly described. The new species are: Tyrannochthonius texanus,Tartarocreagris comanche, Chitrella we/boumi, C. major,C. el/iotti, Cheiridium reyesi, Apocheiridium reddel/i, Neoallochemes(?)incertus, and Dinocheirus cavicolus. The genusTartarocreagris Curcic is discussed in regard to newly discoveredmales, and 2 species are transferred therein. Also, the genusNeoallochemes Hoff is redefined; a new species, N. cubanus, isdescribed from Cuba and Dinocheirus stercoreus Turk, fromTexas bat caves is reassigned to that genus. In an Addendum,another new species from a cave in Texas is described: Tartarocreagrisintennedia.INTRODUCTIONUntil now, reports of cavernicolous pseudoscorpionsin Texas and New Mexico have been widelyscattered in the literature (Turk, 1949; Hoff, 1957;Reddell, 1965, 1970; Barr and Reddell, 1967;Muchmore, 1969, 1976, 1981, 1986). Seven identifiedspecies have been reported from 8 caves inTexas and 2 identified species from 2 caves in NewMexico; additional tentatively identified or unidentifiedpseudoscorpions were known from about 15other caves in Texas and one in New Mexico. Recentcollections, especially by James Reddell andcolleagues in Texas and W.C. Weibourn in NewMexico, now allow the addition of 17 species(including 9 newly described below) to the list ofthose found in caves in the two states.Unless otherwise noted, the materials upon whichthis report is based are deposited in the Florida StateCollection of Arthropods (FSCA), Gainesville,Florida. Some specimens are housed in the AmericanMuseum of Natural History (AMNH), NewYork, New York; the Canadian National Collectionof Insects and Arachnids (CNC), Ottawa, Canada;the J.C. Chamberlin Collection (JCC), ForestGrove, Oregon; the Museum of Comparative Zoology(MCZ), Cambridge, Massachusetts; and theUnited States National Museum of Natural History(USNM), Washington, D.C.FAMILY CHTHONIIDAE HANSENGenus Aphrastochthonius ChamberlinAphrastochthonius Chamberlin, 1962:307; Muchmore,1986:17.127