Rhyacophila inwabumensis, Mey & Malicky, 2021

Mey, Wolfram & Malicky, Hans, 2021, Caddisflies from Myanmar: New records and descriptions of new species (Insecta, Trichoptera), Zootaxa 5060 (4), pp. 533-565 : 536

publication ID

https://doi.org/ 10.11646/zootaxa.5060.4.4

publication LSID

lsid:zoobank.org:pub:E04FD7B0-17B9-4812-8766-3674FCC3C4B6

DOI

https://doi.org/10.5281/zenodo.5647751

persistent identifier

https://treatment.plazi.org/id/038587FF-8344-FFE0-34E0-FB7AFF30F83B

treatment provided by

Plazi

scientific name

Rhyacophila inwabumensis
status

sp. nov.

Rhyacophila inwabumensis spec. nov.

( Figs 2A–2C View FIGURES 2, 3 )

LSID urn:lsid:zoobank.org:act:B61711CA-BA9E-446C-9D14-E7D648495CF7

Holotype ♂ (pinned), Myanmar, Kachin, 15 km north of Kanphant, pass of Mt. Inwa Bum , 26°10’31.9”N 98°30’03.4”E, 3020 m, 4.10.2010, leg. S. Naumann, genitalia in glycerine vial ( MfN). GoogleMaps

Etymology. Named for Mt. Inwabum, where the type specimen was collected.

Diagnosis. The missing tergal straps and anal sclerites of the male genitalia refer this species to a clade in the R. curvata Branch. The species seems to have an isolated position due to the architecture of segment IX and the presence of a vertical fold on the median side of the coxopodite. We have not found a species with similar genitalia in the literature (cf. Kimmins 1953; Ross 1956; Schmid 1971; Sun & Yang 1995; Malicky & Yang 1995; Malicky & Sun 2002).

Description. Length of each forewing 6.9 mm. Head and thorax black; maxillary palpi and antennae brown; legs pale brown, spurs darker; forewings slender, with grey-brown membrane evenly covered by short, gold-brown hairs, not forming distinct wing pattern; hind wings slender, membrane grey.

Male genitalia ( Figs 2A–2C View FIGURES 2, 3 ). Segment IX ring-like, nearly parallel-sided in lateral view; coxopodite longer than harpago, with vertical fold on inner side; segment X plate-like, in horizontal position, inserted basally within segment IX, segment X separated into broad central part and pair of apicoventral processes, each bearing single bristle; phallic apparatus with thin, rod-like aedeagus, slightly longer than pair of slender parameres with bifid tips.

MfN

Museum für Naturkunde

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF