Diadophis punctatus (Linnaeus, 1766)

Hernandez, Tomas, Herr, Mark W., Stevens, Skyler, Cork, Karlee, Medina-Nava, Carolina, Vialpando, C. J., Warfel, Timothy, Fields, Noah, Brodie, Ciara & Graham, Sean P., 2019, New distribution records for amphibians and reptiles in eastern Chihuahua, Mexico, Check List (Dallas, Tex.: 1979) 15 (1), pp. 79-86 : 84

Diadophis punctatus (Linnaeus, 1766) ,

Ring-necked Snake

New record. First record for Ojinaga Municipality: Arroyo El Almagre (29.05184° N, 104.19055° W; WGS 84), 16 May 2016, Mark W. Herr, Sean P. Graham, and Tomas Hernandez (SRSU-D 33).

Remarks. Records for this species are exceedingly scarce in Chihuahua; most are known from the Barran- cas del Cobre region of southwestern Chihuahua and are represented by the subspecies D. p. dugesii. This is only the third record for the subspecies D. p. regalis in Chihuahua, and represents an approximately 260 km range extension within the state from its closest collection point in the Municipality of Buenaventura. However, a much closer record is known from approximately 65 km to the northeast near Terlingua, Brewster County, Texas ( Dixon 2013).