Riethia, Kieffer, 1917

Cranston, Peter S., 2019, Riethia (Kieffer 1917) (Diptera: Chironomidae) revised for the Austro-Pacific region, Zootaxa 4646 (3), pp. 461-500 : 495

publication ID	https://doi.org/ 10.11646/zootaxa.4646.3.3
publication LSID	lsid:zoobank.org:pub:25CA4A18-955F-4EA7-8978-E93032B54A2E
DOI	https://doi.org/10.5281/zenodo.5587178
persistent identifier	https://treatment.plazi.org/id/B3370110-9B1D-1E43-C68C-F975FE42313E
treatment provided by	Plazi
scientific name	Riethia
status

Treatment

Riethia View in CoL View at ENA larva ‘C’

( Fig. 6C View FIGURE 6 )

Material examined. New South Wales, 5L, Currowan S.F., Cabbage Tree Ck., 35°34'S 150°02'E, 2.i.2009 (Cranston) ( MV AU09CTCR6-10 ) GoogleMaps ; Glenbog SF., Brown Mt., Fastigata Rd. , Rutherford Ck., 36°36’S 149°47’E, 909 m a.s.l, 4.ii.2009 ( MV NSWRGCR8 ) GoogleMaps , 2L, same except 27.xi.2010 ( MV NSWBMR1 , 2 ) .

Five larvae coded CTCR6-10 are identical on DNA for CO1 and combined genes, and similarly cluster in similarity of morphology. The head capsule is evenly pale coloured with dark teeth of mentum and mandible, squat but distinct antennal pedestal with AR c. 1.5–1.7, and the clypeus is quite large (65–80 μm wide, 45–48 μm tall) and uniquely is subovate ( Fig. 6C View FIGURE 6 ) with clypeal setae approximated and located antero-medially. An antennal feature seems characteristic although it is difficult to quantify—segment 1 is narrower proximally becoming visibly more dilate distally. This narrowing is despite the Ring Organ being located proximally within this narrower basal section. Mensural features see Table 2 View TABLE 2 .