Arachnologische Gesellschaft

Stenochrus portoricensis, Zomus bagnallii and a new genus of schizomids (Schizomida: Hubbardiidae) from a greenhouse in Frankfurt am Main, Germany

Stenochrus portoricensis, Zomus bagnallii and a new genus of schizomids (Schizomida: Hubbardiidae) from a greenhouse in Frankfurt am Main, Germany

Stenochrus portoricensis, Zomus bagnallii und eine neue Zwerggeißelskorpion-Gattung (Schizomida: Hubbardiidae) aus einem Gewächshaus in Frankfurt am Main, Deutschland

Abstract

A new genus of hubbardiid schizomid, Bucinozomus gen. nov. with the single species B. hortuspalmarum spec. nov., is described on basis to two male specimens found in the 'Palmengarten' greenhouse in Frankfurt am Main, Germany. It clearly differs from other known genera by having a long and conical abdominal segment IX, as well as the following combination of characters: anterodorsal margin of femur IV produced at less than a 90° angle, metapeltidium divided, and pedipalps with prominent spinose setae. It differs from Trithyreus Kraepelin, 1899 by having the pedipalp trochanter with a mesal spur, leg femur IV not slender and a pedipalp tarsus with a shorter claw (half of tarsus length). Living sympatric with this new taxon were female specimens of Stenochrus portoricensis Chamberlin, 1922 and Zomus bagnallii (Jackson, 1908).

Die neue Zwerggeißelskorpion-Gattung Bucinozomus gen. nov. (Schizomida: Hubbardiidae) mit der bisher einzigen bekannten Art B. hortuspalmarum spec. nov. wurde erstmalig anhand von zwei männlichen Individuen, welche in den Gewächshäusern des Palmengartens in Frankfurt am Main (Deutschland) gefunden wurden, beschrieben. Sie unterscheidet sich deutlich von allen anderen bisher bekannten Gattungen durch den Besitz eines langen, kegelförmigen Abdominalsegments IX, so wie durch eine Kombination folgender Merkmale: Der anterodorsale Rand des Femurs IV bildet einen Winkel unter 90° aus, das Metapeltidium ist geteilt und die Pedipalpen weisen auffällig stachelige Setae auf. Von der Gattung Trithyreus Kraepelin, 1899 lässt sich die neue Gattung anhand eines mesalen Sporns auf den Pedipalpen-Trochantern, einem insgesamt weniger schlanken Femur IV und kürzeren Klauen an den Pedipalpentarsen (Hälfte der Tarsuslänge) unterscheiden. Am Fundort kommt B. hortuspalmarum spec. nov. sympatrisch mit Weibchen von Stenochrus portoricensis Chamberlin, 1922 und Zomus bagnallii (Jackson, 1908) vor.

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