Georthocladius (Georthocladius) collarti (Goetghebuer, 1941) Magoga & Montagna & Marziali & Rossaro & Disaa, 2017

Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno & Disaa, 2017, Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2), pp. 723-749 : 726

publication ID	https://doi.org/ 10.1515/aemnp-2017-0097
publication LSID	lsid:zoobank.org:pub:638421F2-985E-43CC-8438-E871F96B1DB8
DOI	https://doi.org/10.5281/zenodo.5335026
persistent identifier	https://treatment.plazi.org/id/03943519-0B46-C87A-FF40-FBB2FCB05F53
treatment provided by	Marcus
scientific name	Georthocladius (Georthocladius) collarti (Goetghebuer, 1941)
status	comb. nov.

Treatment

Georthocladius (Georthocladius) collarti (Goetghebuer, 1941) View in CoL , comb. nov.

( Figs 1–6 View Figs 1‒6 )

Orthocladius (Chaetocladius) collarti Goetghebuer, 1941: 7 View in CoL .

Parachaetocladius retezati Albu, 1972: 19 View in CoL , syn. nov.

Type material examined. Orthocladius collarti : LECTOTYPE (present designation): pinned♁, now mounted on slide, labelled:‘ Orth.collarti n.sp. ♁ D. M.Goetghebuer det.// Lectotype // type locality:Hockai Hautes Fagnes 21.IV.1939 // R.I.SC.N.B.18.073 en grand nombre (éclosion) près du sol, dans un endroit très marecageux’ . PARALECTOTYPES: two pinned ♁♁ without hypopygium, now mounted on the same slide, labelled: ‘ Orthocladius collarti // Paralectotypes // same locality. R. Mus. Hist. Nat. Belg. I.G. 12.190 Coll. et det. M. Goetghebuer’.

Comments. Orthocladius collarti was listed among nomina dubia in Chaetocladius by ASHE & O’CONNOR (2012). The species is now assigned to Georthocladius Strenzke, 1941 because of the presence of a squama with setae, sinuate Cu 1, presence of acrostichals, well developed pulvilli, tarsal pseudospurs present on ta 1 and ta 2 of p 3, a strong triangular anal point with numerous setae, a stout digitiform inferior volsella, and of a gonostylus that is distally enlarged, with a pronounced outer corner. A strong seta at the apex of the antenna seems to be present, but broken in the examined sample. The male hypopygium is identical with the one of Parachaetocladius retezati Albu, 1972 ; the presence of acrostichals reported in ALBU (1972) also supports inclusion in Georthocladius . We therefore consider P. retezati as a junior synonym of G. collarti .