Newportia spinipes Pocock, 1896

Type locality. Guerrero, Omilteme (type not examined).

Published records. Guerrero: Sierra de las Aguas Escondidas (Pocock, 1896). Nuevo León: Monterrey, Chipinque (Chamberlin, 1943; Schileyko & Minelli, 1999).

New records. Guerrero: Omilteme, 14 July 1966, G. E. Ball, D. R. Whitehead (NMNH­2).

Remarks. Chipinque, sometimes called “Chipinque Mesa,” is an ecological reserve that was once outside of Monterrey, but the city has grown and now encompasses this site (J. Bueno Villegas, pers. com.).

Omilteme is an important myriapod locality, as Pocock (1895–1910) described seven species of centipedes and 22 of millipeds from this site that were collected by Herbert H. Smith around 1888. Its precise location in Guerrero has never been certain, but our colleague R. L. Hoffman chanced upon this information while perusing library journals. According to Goldman (1951), Omilteme is a small cattle ranch at 7,200 ft (2,160 m) elevation on the western side of the Sierra Madre del Sur in central Guerrero (17°30’N, 99°40’W), approximately 16 mi (25.6 km) west­southwest of Chilpancingo, and two additional specimens of N. spinipes were taken there in 1966, 70 years after the type collection. The literature record from Nuevo León, some 530 mi (848 km) to the north, requires confirmation with fresh material, as we did not find the sample in any of the aforementioned repositories. We suspect it to be a misidentification of another species and omit it from fig. 17. Consequently, Omilteme is the only confirmed locality for N. spinipes.