Brunsonia selwayana, Shear & Richart & Wong, 2020

Shear, William A., Richart, Casey H. & Wong, Victoria L., 2020, The millipede family Conotylidae in northwestern North America, with a complete bibliography of the family (Diplopoda, Chordeumatida, Heterochordeumatidea, Conotyloidea), Zootaxa 4753 (1), pp. 1-78 : 45-47

publication ID

https://doi.org/ 10.11646/zootaxa.4753.1.1

publication LSID

lsid:zoobank.org:pub:AA9F66B3-EF8C-4F6B-8F35-0BCBEE5122ED

DOI

https://doi.org/10.5281/zenodo.4341545

persistent identifier

https://treatment.plazi.org/id/131D87EF-FF85-FFB6-FFDC-58A0FC54FD35

treatment provided by

Felipe

scientific name

Brunsonia selwayana
status

sp. nov.

Brunsonia selwayana View in CoL , new species

Figs. 173–179 View FIGS , 190, 191 View FIGS

Types: Male holotype and female paratype from IDAHO: Idaho Co., O’Hara Campground, Selway River Road 6.7 mi SE of US-12, Nez Perce-Clearwater National Forests , elev. 475 m., 46.0845°N, - 115.5154°W, collected 12 April 2003, by W. Leonard, from the forest litter of a mixed forest including Thuja plicata , Pseudotsuga menziesii , Alnus cf. rubra , Populus trichocarpa , Rubus parviflorus , and moss, ( CAS) GoogleMaps . Male paratype, same as previous, collected 14 October 2006, by W. Leonard, C. Richart, A. Fusek (CAS) .

Diagnosis: The posterior gonopod colpocoxites are unique and appear somewhat reduced compared to other Brunsonia . Both this species and the following are distinct from the others in having a prominent, oblong femoral process on male legpair five, while pairs three, six and seven lack femoral processes. The anterior gonopods of B. benewah , n. sp. have a posterior process that is lacking in the present species.

Etymology: The O’Hara Campground is located on the Selway River, hence the adjectival species epithet.

Description: Male holotype: Length, 10.0 mm. Twenty ocelli in triangular eyepatch. Metazonites with low shoulders on all trunk rings from three to 25. Color light brown, lightly marked darker purplish brown, markings more distinct anteriorly. Legpairs one and two reduced, three to seven enlarged, mesal knobs present only on femora four and five, mesal on both ( Figs. 175–179 View FIGS ). Anterior gonopods ( Fig. 173 View FIGS , 190 View FIGS ) simple, curved, with median basal process well-developed. Posterior gonopod coxites ( Figs. 181 View FIGS , 191 View FIGS ) complex, with short, lateral retrorse process, mesal fimbriate region very much reduced; subterminal process, curved, thin, acute, terminal process with two lamellate divisions reflexed. Legpair 10 coxae of normal size, with small glands, legpair 11 femora with long, thin, dorsally directed knobs.

Female 10 mm long, similar to male in nonsexual characters.

Distribution: This species has been collected only at the type locality.

Notes: Lack of material prevented SEM examination. The posterior gonopod coxites are unique among Brunsonia species and it is difficult to homologize the processes with the standard pattern, as set by B. albertana . However, the process labeled a in Fig. 181 View FIGS may actually be that process. The channeled process seems obsolete, but there is a small pore subapically (not shown in the drawings but observed later).

CAS

USA, California, San Francisco, California Academy of Sciences

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