The millipede family Striariidae Bollman, 1893. VI. Six new genera and thirteen new species from western North America (Diplopoda, Chordeumatida, Striarioidea) Author Shear, William A. 0000-0002-5887-7003 Professor Emeritus, Department of Biology, Hampden-Sydney College, Hampden-Sydney VA 23943 USA, current address: 1950 Price Drive, Farmville VA 23901 USA. wshear @ hsc. edu; https: // orcid. org / 0000 - 0002 - 5887 - 7003 wshear@hsc.edu Author Marek, Paul E. Department of Entomology, Virginia Tech, Blacksburg VA 24061 USA. text Zootaxa 2022 2022-11-11 5205 6 501 531 journal article 187956 10.11646/zootaxa.5205.6.1 4b6eb79c-018f-470b-ac46-6646270ec7ee 1175-5326 7318605 9D1DEC25-5FA2-4D64-807E-F103C3FCB5CA Nototrisaria ornata Shear & Marek , n. sp. Figs 1–6 , 49–51 FIGURE 1. Nototrisaria ornata , n. gen., n. sp . , live female in habitat. About 5.0 mm long. Photo by Bill Leonard. FIGURES 2–6. Nototrisaria ornata , n. gen., n. sp . 2. Anterior end of male, ventral view. 3. Rings 2–4 of male, dorsal view. 4. Posterior end of male, oblique view. 5. Right gonopod, lateral view. 6. Legpair 9 of male, anterior view. Abbreviations: aac , anterior angiocoxite; col , collum; cc , colpodoxite; c1, crest 1; c6 , crest 6; cxs , coxosternite; cx10 , coxa of leg 10; L1 , leg 1; L2 , leg 2; L3 , leg 3; m , mandible; numerals , ring numbers; pac , posterior angiocoxite; t9 , telopodite of leg 9. Types: Male holotype and male paratype from 9.6 miles up Elochoman Valley Road from Rt. 4, Wahakiakum Co. , Washington , 46.289633°N , - 123.26485°W , 450’ asl, collected 28 March 2004 by C. Richart , W. Leonard ; male paratype from 11.7 mi up Elochoman Valley Road from Rt. 4, 450’ asl, 46.316783°N , - 123.2617°W , 28 March 2004 , collected by C. Richart ; male and female paratypes from Trap Creek , 1.1 mi S of SR6, Pacific Co. Washington , 46.5468°N , - 123.6161°W , 180’ asl, collected 11 January 2003 and 3 May 2003 by W. Leonard. Parts of a male paratype are mounted on SEM stub WS3-8. Types deposited in the CAS. Etymology : The species name, a Latin adjective, refers to the ornate dorsum. Diagnosis : As for the genus; see above. Description : Male paratype from Elochoman River Road. Length, 5.5 mm , width 0.6 mm (includes paranota). Thirty postcephalic rings including telson. Head ( Fig. 2 ) densely setose, with sculpture of tiny, acute tubercles; labral corners rounded, without projecting hook. Ommatidia absent. Antennae short, robust. Mandibular stipes ( Fig. 2 , m) with sawtooth distal edge, acute apical projection. Color of live specimen white to pale yellow ( Fig. 1 ). Collum ( Fig. 2 , col) broadly expanded, with 10 subequal crests limited to posterior two-thirds; anterior third with pebbled sculpture. Anterior rings ( Fig. 3 ) with C2 and C6 exaggerated, the latter expanded into prominent paranota with deep posterior notch; C1 reduced to a few knobs, absent on more posterior rings, C2 also progressively lower on midbody ring, exaggerated again on most posterior 6–8 rings ( Fig. 4 ). Metazonital setae not observed, probably absent. Limbus serrate. Telson without crests, lobes deeply incised ( Fig. 4 ). First legpair crassate ( Fig. 2 , L 1 ), larger than legpairs 2 and 3 ( Fig. 2, L2, L3 ), postfemora and tibia set with long, stiff setae, tarsus with comb. Legpair 2 relatively small, similar to postgonopodal legs. Legpair 3 with prominent, broad, slightly sigmoidal coxal flasks bearing curled setae on anterior surface ( Fig. 2 , cf); prefemora expanded, flattened. Legpairs 4–6 strongly crassate. Legpair 7 similar to pairs 4–6, but with large, flattened coxal plates covering bases of gonopods. Gonopods in mesal view ( Figs 5 , 50 ) with anterior angiocoxites erect, narrow, hooked and expanded at tip; posterior edge with continuous fimbriate lamina, lamina ends in long distal projection; tuft of strong, thin cuticular projections subapically (aac, Figs 5 , 49, 50 ). Posterior angiocoxites as broad, rounded plate (pac, Figs 5 , 50 ). Flagellocoxites absent. Colpocoxite ( cc, Figs 5 , 49, 50 ) developed as compact mass of finely divided, sinuous fimbriae with small posterior portion unmodified, sclerotized. Ninth legpair ( Figs 6 , 51 ) strongly reduced, sternum (s9), coxae (cx) and telopodites (t9) fused; coxal part with blunt triangular process (cp), telopodite part with long, finger-like basal process bearing acute setae. Tenth leg with enlarged, glandular coxae ( Fig 6 , cx10). Female paratype similar to male in nonsexual characters, but exaggerated crests significantly lower. A living female specimen is depicted in Fig. 1 . Distribution : As for the genus. The Grays Harbor County record ( WASHINGTON : Grays Harbor Co.: Canyon River, 47.303517°N , - 121.508167°W , 1500’ asl, 12 December 2004 , W. P. Leonard) is based on a female that strongly resembles the females from other localities.