Diactis Loomis, 1937

Shelley, Rowland M. & Richart, Casey H., 2014, Tynommatidae, n. stat., a family of western North American millipeds: Hypotheses on origins and affinities; tribal elevations; rediagnoses of Diactis Loomis, 1937, and Florea and Caliactis, both Shelley, 1996; and description of D. hedini, n. sp. (Callipodida: Schizopetalidea), Insecta Mundi 2014 (340), pp. 1-19 : 5

Components. Diactis Loomis, 1937 ; Florea Shelley, 1996 ; Caliactis Shelley, 1996 .

Distribution (adapted from Shelley [1996]). Southwestern California and the Sierra Juarez in the adjacent interior periphery of Baja California Norte, primarily in canyon biotopes ( Loomis 1937; Chamberlin and Hoffman 1958; Buckett 1964; Shelley 1996, 2002a; Hoffman 1980, 1999; Bueno-Villegas et al. 2004; Stoev et al. 2008). The Santa Monica mountains, Los Angeles Co., constitute the northern limit along the coast, and the northernmost interior record is an unidentifiable female from the Mojave Desert, central Kern Co.; the eastern boundary is the San Jacinto Range, Riverside Co. The distribution encompasses the region of southern California with the most rainfall and forests, and extends about 182 km (114 mi) east-west and 342 km (214 mi) north-south.