Description of immature stages of Ectemnostega (Ectemnostega) quadrata (Signoret, 1885) (Heteroptera: Corixidae), with notes on ecological requirements of the species

The family Corixidae comprises a small group of true bugs that live in aquatic environments with abundant macrophytes. The genus Ectemnostega Enderlein includes two subgenera: Ectemnostega and Ectemnostegella, both known from South America, ranging from Ecuador to Tierra del Fuego. Ectemnostega (Ect...

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Bibliographic Details
Published in:Aquatic insects 2010-06, Vol.32 (2), p.99-111
Main Authors: Scheibler, Erica E., Melo, Maria C.
Format: Article
Language:English
Subjects:
Andean region
aquatic insects
Argentina
Chara
Cladophora
Corixidae
habitats
Hemiptera
larval stadia
Marine
morphology
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Description
Summary:The family Corixidae comprises a small group of true bugs that live in aquatic environments with abundant macrophytes. The genus Ectemnostega Enderlein includes two subgenera: Ectemnostega and Ectemnostegella, both known from South America, ranging from Ecuador to Tierra del Fuego. Ectemnostega (Ectemnostega) quadrata (Signoret, 1885 ) is distinguished by the widened posterior half of hemelytra, and the protibia of males prolonged over the base of pala. This species is distributed in Argentina and Chile along the Andes mountain range, from high altitudes in San Juan to sea level in Cabo Hornos, Tierra del Fuego. Adults and larvae were collected in association with Cladophora sp. and Chara sp. in northwestern Mendoza, from Los Horcones Lagoon (2891 m a.s.l.) and from ponds on southwestern slopes of Mendoza (Las Loicas locality, 1772 m a.s.l.). Larval stadia of Ectemnostega are described for the first time. Distributional and life habitats data of this species are provided.
ISSN:0165-0424
1744-4152
DOI:10.1080/01650420903379585