Hydrachna regulifera Koenike, 1908,
publication ID |
http://doi.org/ 10.5281/zenodo.170186 |
publication LSID |
lsid:zoobank.org:pub:81B2332D-7AEB-406F-B2FC-6C2A36934B52 |
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http://treatment.plazi.org/id/03F7DE69-B044-FFE5-FEF6-FEB7FB928323 |
treatment provided by |
Plazi |
scientific name |
Hydrachna regulifera Koenike, 1908 |
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Hydrachna regulifera Koenike, 1908
Species incerta
Material examined: Holotype deutonymph [not female!] SMNH 552, Germany, Bremen, under the wings of Dytiscus marginalis .
Discussion: Erroneously, Koenike (1908) reported the finding of an adult female of Hydrachna from the subelytral space of a specimen of Dytiscus marginalis . The holotype is badly damaged (genital region mostly missing, P 35 lost, frontal sclerites not clearly identifiable, slide dried up), but remnants of acetabulabearing sclerite strips attached to the medial margins of Cx 3 + 4 indicate that it is a deutonymph rather than an adult female. Obviously, this specimen had developed in the subelytral space from a protonymph and was ready to leave its host. Large dimensions and the presence of at least 3 setae on Cx 4 indicate that it is related to H. geographica . A definitive placement of this immature specimen remains impossible and it must be regarded a species incerta.
SMNH |
Saskatchewan Museum of Natural History |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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