Kentrostriaria Shear & Marek, 2022

Shear, William A. & Marek, Paul E., 2022, The milliped family Striariidae Bollman, 1893. V. Stegostriaria dulcidormus, n. gen., n. sp., Kentrostriaria ohara, n. gen., n. sp., and the convergent evolution of exaggerated metazonital crests (Diplopoda, Chordeumatida, Striarioidea), Zootaxa 5094 (3), pp. 461-472 : 467

Kentrostriaria Shear & Marek , new genus

Type species: Kentrostriaria ohara Shear & Marek , new species

Etymology: The name of the genus is a feminine Latin neologism based on the name of the dinosaur genus Kentrosaurus Hennig, 1915 , of the family Stegosauridae , and Striaria , the name of the type genus of the family. In addition to the double row of crest-like plates down the back, Kentrosaurus species also have at least one lateral crest projecting above the forelimbs, recalling that Kentrostriaria n. gen. has, on the anterior metazonites, enlarged third crests extending somewhat laterally.

Diagnosis: A genus of the subfamily Striariinae , distinct from Amplaria Chamberlin, 1941 and Striaria Bollman, 1888 in having the second metazonital crests on each side exaggerated, as well as the third crests on anterior segments, and in having the gonopod colpocoxites reduced or absent.

Description: See the description of the type and only species, below.

Distribution: Presently known only from Idaho Co., Idaho, USA.

Notes: Unexpectedly, the conformation of the gonopods mandates the placement of this genus in the subfamily Striariinae . Instead of the comb-like structure typical of the gonopods of the trisariines, Kentrostriaria species have at least two gonopod flagellocoxites that are sheathed by the posterior angiocoxites. Unlike trisariines, in which the ninth legs are reduced and fused into a single unit (and in Stegostriaria n. gen. strongly modified), the sternum, coxae and telopodites of Kentrostriaria species are separate and distinct.