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vol.66 issue2A NEW SPECIES OF PHTHEIROPOIOS (PHTHIRAPTERA , AMBLYCERA) PARASITIC ON CTENOMYS SP. (RODENTIA, OCTODONTIDAE) FROM CORDOBA PROVINCE, ARGENTINABIOLOGICAL ASPECTS OF ON EUPITHECIA SIBYLLA BUTLER 1882 (LEPIDOPTERA:GEOMETRIDAE) author indexsubject indexarticles search
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Gayana (Concepción)

Print version ISSN 0717-652XOn-line version ISSN 0717-6538

Abstract

PELUFFO, Julio; MOLY DE PELUFFO, María C.  and  ROCHA, Alejandra M.. REDISCOVERY OF ECHINISCUS RUFOVIRIDIS DU BOIS-RAYMOND MARCUS 1944 (HETEROTARDIGRADA, ECHINISCIDAE): NEW CONTRIBUTIONS TO THE KNOWLEDGE OF ITS MORPHOLOGY, BIOECOLOGY AND DISTRIBUTION. Gayana (Concepc.) [online]. 2002, vol.66, n.2, pp.97-101. ISSN 0717-652X.  http://dx.doi.org/10.4067/S0717-65382002000200002.

Numerous specimens of Echiniscus rufoviridis (Heterotardigrada, Echiniscidae) were recorded and studied from urban localities in Argentina. Since the first description of this species by Du Bois-Raymond Marcus in 1944 on Brazilian specimens, it had not been recorded again. The validity of the species is confirmed, its geographic distribution is extended to Argentine localities and new data are provided on its morphology (optical and SEM) and its bioecology. Echiniscus rufoviridis can be clearly separated from the E. viridis, the closest species within the "viridis group", by the possession of depressions with pores on the surface of the cuticle, instead of papillae. On the other hand, an ecological similarity with E. testudo is proposed. This latter species occupies, albeit with low tolerance, urban environments in Europe

Keywords : Urban environments; Argentina; Heterotardigrada; Echiniscidae; Echiniscus rufoviridis; geographic distribution; morphology; rediscovery.

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