Open AccessThe 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)
Author(s) -
William A. Shear,
Paul E. Marek
Publication year - 2022
Publication title -
zootaxa
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.621
H-Index - 87
eISSN - 1175-5334
pISSN - 1175-5326
DOI - 10.11646/zootaxa.5094.3.5
Subject(s) - biology , subfamily , convergent evolution , genus , key (lock) , zoology , dorsum , evolutionary biology , ecology , anatomy , phylogenetics , genetics , gene
Two new genera and species, Stegostriaria dulcidormus (Trisariinae) and Kentrostriaria ohara (Striariinae), are described from Oregon and Idaho, respectively. The new species are distinct from any other striariids, and indeed from any other chordeumatidan millipedes, in having the second dorsal crests greatly enlarged, giving them a fanciful resemblance to stegosaurid dinosaurs. In spite of this similarity, the two species are so distinct they cannot be accommodated in the same genus or the same subfamily. The exaggerated metazonital crests are therefore attributed to convergent evolution. We present a key to the genera of the family Striariidae.