Savignia foveata Dahl, 1912 (p. 609)
Rhaebothorax foveatus (Dahl, 1912)
Raebothorax foveatus (Dahl, 1912)
Mecynargus foveatus (Dahl, 1912)
Erigonoplus foveatus (Dahl, 1912)
Type locality: "auf dem Herrscherberg bei Brodowin, an sonniger
Stelle, aber in der Nähe kleiner Kiefern, unter einem Haufen kleiner
Steine" (see p. 400 in Dahl 1912).
Eboria foveolata (Wiehle, 1960)
Mecynargus foveolatus (Wiehle, 1960)
Type locality: same as for Savignia foveata. In addition, male specimen(s)
from another source may have been used (see below).
This
species has a complicated nomenclatural history. There are two
independent series of specimens both collected by Friedrich Dahl. One
series (here called Plagefenn Series) was collected on
July 2, 1909 near Brodowin (a village near Berlin) and is deposited with
the Natural History Museum in Berlin (fide Moritz 1973). The second
series (here called Budenheim Series) was
collected in Budenheim (near Mainz) and is deposited with the
Senckenberg Museum in Frankfurt am Main (fide Moritz 1973). When Dahl
(1912) described the new species, Savignia foveata, he obviously based
his description only on the Plagefenn Series, because he only describes
female characters (the Plagefenn Series only comprises females) and he
describes the new species in his work about the
Plagefenn near Brodowin. Wiehle (1960), in his
monograph about the money spiders, writes that he found the type
specimens of Savignia foveata in the Senckenberg Museum in Frankfurt am
Main. These Senckenberg specimens should thus be
the Budenheim Series. However, Wiehle must have confused things when he
was preparing the text for his monograph. He writes that the Senckenberg
specimens are in fact not Savignia foveata, but Microcentria pusilla (=
Diplocentria rectangulata)
and he synonymizes the two
taxa. But then Wiehle writes that he also studied more of Dahl´s
original specimens that he found in the Berlin museum labeled as
"Savignia foveolata" (sic!). The fact that these specimens are in the
Berlin museum implies that these must be the Plagefenn specimens. But
Wiehle goes on and describes the Berlin specimens as a new species,
Rhaebothorax foveolatus, and figures both male and female characters.
Because the Berlin material can only be the Plagefenn Series and this
series does not contain males, it is unclear where the male specimens in
Wiehle´s description come from. In summary, Wiehle had probably access
to both original series collected by Dahl, but he not only partially
misidentified them, but he apparently also used additional material that
did not belong to the original material. At any rate, the synonymy of
Savignia foveata and
Microcentria pusilla as stated by Wiehle (1960) is incorrect and
Wiehle´s Rhaebothorax foveolatus is an objective junior synonym of
Savignia foveata, because it is based on the same type specimens.
This species has long been placed in the genus Mecynargus, but has been transferred to the genus Erigonoplus by Holla et al. 2016.
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