Lobonychium Roewer, 1938

Zhang, Chao & Martens, Jochen, 2018, Rediscovery of Lobonychiumpalpiplus Roewer, 1938 (Opiliones, Laniatores, Epedanidae) in Sabah, Malaysia, ZooKeys 785, pp. 29-40: 29

publication ID

http://dx.doi.org/10.3897/zookeys.785.26389

publication LSID

lsid:zoobank.org:pub:51F45F06-29F4-43CF-B639-57F73C302C49

persistent identifier

http://treatment.plazi.org/id/4627FEE9-F813-F10B-9F7E-240850662A64

treatment provided by

ZooKeys by Pensoft

scientific name

Lobonychium Roewer, 1938
status

 

Lobonychium Roewer, 1938 

Lobonychium  Roewer, 1938: 125.

Type species:

Lobonychium palpiplus  Roewer, 1938, by monotypy.

Etymology.

The name Lobonychium  is derived from the Greek λοβός, meaning lobe of the ear, and the Latinized Greek onyx (genitive onychos), meaning claw.

Diagnosis.

Body, including ocularium, unarmed. Basichelicerite and tibia II elongate. Basichelicerite dorsally with conspicuous granules. Femur of pedipalp ventrally with a row of seven setiferous tubercles. Distitarsus I with two tarsomeres, distitarsus II with three. Double claws of tarsi III–IV with basal lobes, untoothed; no scopula. Ventral plate of penis forming a heart-shaped stereoscopic structure (ventral view, Fig. 28). Glans partially sunken into dorsally depressed portion of pars distalis (Fig. 26). Stylus with capsula interna sunken into capsula externa (Fig. 27).

Sexual dimorphism.

Tibia II in male distended at distal portion, but normal in female.

Remarks.

Within the subfamily Epedaninae  , Lobonychium  is morphologically similar to Epedanidus  Roewer, 1943, Metepedanulus  Roewer, 1913, and Zepedanulus  Roewer, 1927 in having an unarmed body. Besides, Lobonychium  and Caletorellus  Roewer, 1938 have characteristic basal lobes or medial branches on double claws of tarsi III–IV ( Roewer 1938: 125, 129, fig. 4 b–d). However, Lobonychium  is noticeably distinct from these epedanids by the pedipalp femur, medially with a row of seven setiferous tubercles.

Distribution.

The type locality is at or near the city of Pontianak (Fig. 36 A), Indonesia. The new records are from Malaysia, at Trus Madi Mountain (Fig. 36 B) and Kalabakan (Fig. 36 C).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Opiliones

Family

Epedanidae

Loc

Lobonychium Roewer, 1938

Zhang, Chao & Martens, Jochen 2018

2018
Loc

Lobonychium

Roewer 1938

1938