Lamparia millicoma Shear & Marek 2022, n. sp.
Creators: name: Shear, William A.
name: Marek, Paul E.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplopoda
Chordeumatida
Striariidae
Lamparia
Lamparia millicoma

description: Lamparia millicoma Shear & Marek, n. sp.
Figs 30–32, 69–71
Types: Male holotype and female paratype from 11 mi E, 4 mi N of Allegany Douglas Co., Oregon, Berlese of myrtle and rhododendron litter, Weyerhauser Millicoma Tree Farm, company road 5000, T24S, R9W, S18 (43.4862°N, - 123.8177°W) 1055’ asl, collected 20 November 1971 by E. M. Benedict. Male and female paratypes from 8 mi E, 2 mi S of Allegany, Coos Co., Oregon, Berlese of Pseudotsuga bark on clear-cut slope, Weyerhauser Millicoma Tree Farm, company road 5000, T25S, R10W (43.3936°N, - 123.8705°W), 1450’ asl, S15, collected 20 November 1971 by E. M. Benedict; 11 mi E, 4 mi S of Allegany, Douglas Co., Oregon, Berlese of hemlock duff and moss, Weyerhauser Millicoma Tree Farm, company road 6040, T25S, R9W, S31 (43.3740°N, - 123.8106°W), 850’ asl, collected 21 November 1971 by E. M. Benedict. All material deposited in CAS.
Etymology: The species epithet is a noun in apposition, referring to the Weyerhauser Millicoma Tree Farm.
Diagnosis: Distinct from L. curryensis, n. sp. and L. bentonensis, n. sp. in not having a knob at the tip of the gonopod anterior angiocoxite and in the reduced posterior angiocoxite (Figs 69, 70). From the related Lamparia pratensis n. sp., separable by the form of the ninth legs of males of that species, which have a median sternal knob and a long, curved coxosternal process that parallels the elongate telopodite (compare Figs 68 and 71).
Description: Male holotype. Length, 4.7 mm, width 0.48 mm. Two black ommatidia on each side of head. Sixth crests well extended as broad paranota (Figs 26, 27). Telson lobes nearly completely suppressed. Metazonital setae not seen, absent or concealed by heavy cerotegument. Color white to pale tan, faintly suffused pale purplish brown. Flasks of third coxae short, when extended posteriorly reaching only to anterior margin of fifth coxae (Fig. 30, cf). Other characters as described for genus.
Gonopods (Figs 39, 69, 70) moderately large. Coxae (Fig. 69) with 3 setae, bulbous. Anterior angiocoxites (Figs 31, 69, 70, aac) narrow, erect, with slightly expanded, curved tip, posterior surface finely fimbriate from base to about half length of coxite. Posterior angiocoxite (Fig. 31, pac) much reduced; flagellocoxite not sheathed. Flagellocoxite single, thin, short (Figs 31, 69, fc). Colpocoxite large and bulbous, shifted anteriomesally, set with a few triangular, fine cuticular teeth (Figs 69, 70, cc). Ninth legs with coxosternum (Fig. 71). Telopodites (Fig. 71, t 9) free, apically flattened, mesally curved anteriorly, interlocking with gonopods, laterally fitting into deep indentations in ventrolateral edges of seventh ring. Telopodite processes (Fig. 71, tp9) flattened, long, sharply curved, mesally elongate, tips crossing in midline. Tenth coxae not much swollen, gland openings anteriodorsal.
Female paratypes similar to males in nonsexual characters.
Distribution: Found in the vicinity of Allegany, Oregon. The small village of Allegany is in Coos Co., but near the border with Douglas Co.
Note: This species is very similar to L. pratensis n. sp., but has very different male ninth legs. The more basal segments of the legs bear the modified setae characteristic of striariids (Fig. 28). The female genitalia are complex (Fig. 32) but their taxonomic value has not been assessed. It would appear that they are not exactly symmetrical when left and right are compared.
description: Published as part of Shear, William A. & Marek, Paul E., 2022, The millipede family Striariidae Bollman, 1893. VI. Six new genera and thirteen new species from western North America (Diplopoda, Chordeumatida, Striarioidea), pp. 501-531 in Zootaxa 5205 (6) on pages 516-517, DOI: 10.11646/zootaxa.5205.6.1, http://zenodo.org/record/7318605