Tigraria Shear & Marek, 2023

Shear, William A. & Marek, Paul E., 2023, The millipede family Striariidae Bollman, 1893. VIII. Three new genera and four new species of minute millipedes from Oregon and Washington, USA (Diplopoda, Chordeumatida, Striarioidea), Zootaxa 5264 (3), pp. 323-340 : 331-332

Tigraria Shear & Marek , new genus

Type species: Tigraria oregonensis Shear & Marek , new species

Diagnosis. Distinct from other small (<5 mm) striariid genera except Petra Shear et al., 2022 in lacking flasks on the third coxae ( Fig. 31 ) and having densely dentate processes on the fifth coxae ( Fig. 32 ) of males. Distinct from Petra sierwaldae Shear et al., 2022 in that the gonopod tips are not enveloped in the telopodites of the ninth legpair but instead the ninth legpair ( Figs 34 , 59 ) resembles that of species of Miniaria n. gen.

Etymology. The genus name refers to the type locality (Tiger Saddle) with the combining stem - aria commonly used in this family; gender is feminine.

Description. As for the only included species, see below.

Included species. Only Tigraria oregonensis Shear & Marek , n. sp.

Distribution. A single locality in Umatilla Co., Oregon, USA.

Figures

FIGURES 31–34. Tigraria oregonensis n. gen., n. sp. male paratype. 31. Coxae of third legpair, ventral view. 32. Coxae of fifth legpair, ventrolateral view. 33. Gonopods, ventral view. 34. Legpair 9, anterior view. Abbreviations: aac, anterior angiocoxite; cx, coxa; cx (numeral), coxa of numbered legpair; cxp, coxal process; pac, posterior angiocoxite; s, sternum of gonopods; s9, sternum of legpair 9; t9, telopodite of leg 9.

FIGURES 55–61. Gonopods and ninth legs of male striariid millipedes. Figs. 55, 56. Miniaria richarti n. gen., n. sp. 55. Ninth legpair of specimen from Elochoman River Road, anterior view. 56. Left ninth leg of specimen from Hospital Creek, anterior view. Figs. 57–59. Tigraria oregonensis n. gen., n. sp., male paratype; 57. Right gonopod, mesal view. 58. Same, lateral view. 59. Right ninth leg, anterior view. Figs. 60, 61. Kingaria prattensis n. gen., n. sp., male holotype. 60. Right gonopod, lateral view. 61. Left ninth leg, anterior view. Abbreviations: aac, anterior angiocoxite; cc, colpocoxite; cx, coxa; cxp, coxal process; f, flagellum; pac, posterior angiocoxite; t9, telopodite of ninth leg.