Caseya heteropa montana Gardner & Shelley 1989

Shear, William A. & Leonard, William P., 2007, Additions to the milliped family Caseyidae. I. Caseya richarti, n. sp., and new records of previously described species in the genus Caseya Cook and Collins 1895 (Diplopoda, Chordeumatida, Caseyidae), Zootaxa 1524, pp. 23-34 : 32-33

Caseya heteropa montana Gardner & Shelley 1989

Caseya heteropoa montana Gardner & Shelley 1989:264 .

The type locality is 6 miles south of El Dorado, El Dorado Co., California. According to the records published by Gardner & Shelley (1989), this subspecies primarily occupies a compact area of the western slopes of the Sierra Nevada, from southernmost El Dorado Co. to Yosemite National Park in Mariposa Co. Caseya h. montana is also recorded from Butte and Colusa Cos., quite far removed (ca. 60 and 110 miles respectively) from the northern end of the main distribution in El Dorado Co. It may be that further collecting will link these populations with the more coherent Sierra Nevada distribution. At the northern end of the Sierra Nevada part of its range it is sympatric and sometimes syntopic with C. dorada (see above) and at the southern end with C. paradoxa Gardner and Shelley 1989 and C. prionota Gardner and Shelley 1989 . The distribution of C. taliae Gardner and Shelley 1989 and C. sequoia Gardner and Shelley 1989 are to the southeast ( Gardner & Shelley, 1989, Fig. 224). Our new record from Yolo Co. is indicative of broader sympatry with C. dorada . Again, previous samples were taken from November to March, and the Yolo Co. record below is the latest in the year this species has been collected.

New Record: California: Yolo Co., West Sacramento, 11 April 1961, M. E. Irwin (FMNH; the locality label says “Inyo Co.” but this is in error).