Idaloria Marek, Means, Hennen, 2021

Means, Jackson C., Hennen, Derek A., Tanabe, Tsutomu & Marek, Paul E., 2021, Phylogenetic Systematics of the Millipede Family Xystodesmidae, Insect Systematics and Diversity 5 (2), No. 1, pp. 1-26 : 15

Genus Idaloria Marek, Means, Hennen , New Genus

Vernacular name: ‘The Mount Ida Millipede’

Type species: Cibularia profuga Causey, 1955 .

Taxa included: monotypic.

Diagnosis: Adult males of Idaloria are distinct from other genera of the tribe Rhysodesmini based on the following combination of characters: Gonopods. Acropodite linear, not curved as in the Apheloriini . Acropodite distinctly narrowed at apex, forming angular shoulder. Prefemoral process acicular, longer than one-half the length of the acropodite. Acropodite without a cingulum, as in Brachoria and Appalachioria . Color. Tergites with 2 red paranotal spots. Nucleotide site substitutions. 12S: C (94); 16S: T (146, 451); G (934, 1239); T (1017, 1322); C (1043, 1348); COI: T (265, 2541); 28S: T (1293, 5644).

Distribution: Idaloria profuga is known from a population in the Ouachita Mountains of Montgomery County, Arkansas and a second disjunct population in Ouachita Parish, Louisiana.

Etymology: This genus is named after where the type was discovered on Mount Ida, Arkansas. The name is a combination of ‘Ida’ and the Latin - orium, ‘place for’. The ending ‘- oria ’ is commonly used for genera in the family.