Colactis utorum ( Chamberlin, 1925 )

Stoev, Pavel, Sierwald, Petra & Billey, Amber, 2008, An annotated world catalogue of the millipede order Callipodida (Arthropoda: Diplopoda) *, Zootaxa 1706, pp. 1-50 : 36

Colactis utorum ( Chamberlin, 1925)

Spirostrephon utorum Chamberlin, 1925 , Pan-Pacific Entomol., 2 (2): 61. Male HT (USNM) from near Green River, Emery County, Utah, USA. Chamberlin, 1930, Pan-Pacific Entomol., 6 (3): 121.

Colactis utorum: Loomis, 1937 , Proc. U.S. Natl. Mus. Wash., 84 (3006): 130. Chamberlin & Hoffman, 1958, Bull. U.S. Natl. Mus., 212: 111. Shelley, 1996, Ent. Scand., 27 (1): 36, figs 15–16. Hoffman, 1999, Checklist Millip. North & Middle Am.: 201.

Colactis saxetana Loomis, 1937 , Proc. U.S. Natl. Mus. Wash., 84 (3006): 122, figs 16a, b; pl. 3, fig. 2. Male HT (USNM) from the north slope of Picacho Mountain, Pinal County, Arizona. Synonymy proposed by Shelley (1996). Chamberlin & Hoffman, 1958, Bull. U.S. Natl. Mus., 212: 111.

Colactis baboquivari Loomis, 1937 , Proc. U.S. Natl. Mus. Wash., 84 (3006): 123, figs 16c, d; pl. 3, fig. 4. Male HT (USNM) from Baboquivari Canyon, southwest of Tucson, in Pima County, Arizona. Synonymy proposed by Shelley (1996). Chamberlin & Hoffman, 1958, Bull. U.S. Natl. Mus., 212: 111.

Colactis briggsi Shear, 1974 , Occ. Pap. Calif. Acad. Sci., 112: 2, figs 1–3. Male HT (CAS) from Shoshone Cave, near Shoshone, Inyo County, California, USA. Synonymy proposed by Shelley (1996).

Range: east central Utah to south central Arizona, southern Nevada, southeastern California, USA (cf. Hoffman 1999).