Doi
10.30963/aramit5509
Autor

Bosmans R & Oger P

Jahr
2018
Titel

On two cases of male dimorphism in dwarf spiders (Araneae: Linyphiidae)

Titel übersetzt

Zwei Fälle von Dimorphismus bei Zwergspinnen (Araneae: Linyphiidae)

Ausgabe

Heft 55

Seiten
52-56
Abstract

Diplocephalus cristatus (Blackwall, 1833) is confirmed as a dimorphic species, having two morphs:cristatus and foraminifer. This view was first proposed by Georgescu (1969), but not supported in literature. Diplocephalus foraminifer (O. Pickard-Cambridge, 1875),D. bicephalus (Simon, 1884), D. rectilobus (Simon, 1884), D. foraminifer thyrsiger (Simon, 1884) and D. arvernus (Denis, 1948) are here considered junior synonyms of D. cristatus (Blackwall, 1833). Diplocephalus bicephalus belongs to the morph cristatus, D. rectilobus, D. thyrsiger and D. arvernus to the morph foraminifer. The lectotype (♂) is designated for Diplocephalus bicephalus Simon, 1884; the paratype female of D. bicephalus was incorrectly identified and actually belongs to Dicymbium nigrum (Blackwall, 1834). Savignia harmsi Wunderlich, 1980 is another dimorphic species, with the two strongly differing male morphs: typica and cor.

Keywords

Araneae, dimorphic Linyphiidae, Diplocephalus, Savignia