Madicolous Chironomidae from the Brazilian Atlantic Forest: a checklist with notes on altitudinal distributions (Diptera, Insecta) Author Shimabukuro, Erika Mayumi Author Trivinho-Strixino, Susana text ZooKeys 2018 751 41 73 http://dx.doi.org/10.3897/zookeys.751.20611 journal article http://dx.doi.org/10.3897/zookeys.751.20611 1313-2970-751-41 FF9D82A9CB464D78BD6F8C9F69C3CAB8 O. oncovolsella Wiedenbrug, Mendes, Pepinelli & Trivinho-Strixino, 2009 Distribution. BRAZIL - PESM, Ubatuba, Sao Paulo State ( 23°31.068'S , 45°14.845'W ; 23°31.087'S , 45°14.621'W ; 23°30.789'S , 45°14.442'W ); Sao Francisco de Paula, Rio Grande do Sul State. Elevation . 23-61 m a.s.l. Habitats. Surface of stones in fast flowing waters. Known stages. L, P, F, M. References. Wiedenbrug et al. (2009) . Remarks. O. oncovolsella was found on marginal rocks of small streams, at 1445 m a.s.l., extending the altitudinal record of the species. Environmental characterization: Water temperature 10 °C; dissolved oxygen 9 mg.l-1; pH 5; fast flowing; partial vegetal canopy (50% covered). The species was found in PARNASO (Rio de Janeiro State). Low altitudinal specificity (IndVal: 0.25; p = 0.31). Unknown species. Onconeura sp. 1. Locality: PARNASO. Altitudinal record: 1445 m a.s.l. Low altitudinal specificity (IndVal: 0.25; p = 0.30); Onconeura sp. 2 Locality: PARNASO. Altitudinal record: 1445 m a.s.l. Low altitudinal specificity (IndVal: 0.25; p = 0.32); Onconeura sp. 3 Locality: PESM. Altitudinal record: 1085 m a.s.l. Low altitudinal specificity (IndVal: 0.17; p = 0.83).