Scaphicoma Motschulsky, 1863

Löbl, Ivan, 2023, On the Scaphidiinae (Coleoptera: Staphylinidae) of Java, Indonesia, Acta Musei Moraviae, Scientiae biologicae 108 (1 - 2), pp. 1-34 : 5-6

Scaphicoma Motschulsky, 1863

The genus is characterized by its body strongly compressed laterally, basal angles of the pronotum rounded and not extending apicad, the mesepimera completely concealed, and the conspicuously elongate appendages. Scaphicoma comprises 20 species distributed in the tropics and subtropics of Asia, Melanesia, Australia, and Africa. Two species have been described from Java, the original description of one of them, S. pallens ( Achard, 1921) has been complemented by LÖBL (1971). The newly examined samples comprise two species, one identified as S. ophthalmica ( Achard, 1920) , the second described below as new.

Key to Javanese species of Scaphicoma

1 Body light reddish­brown or ochraceous. Aedeagus with parameres abruptly narrowed posterior of mid­length, internal sac with U­shaped proximal sclerite. ................................................................................ .. B. pallens (Achard)

Body dark brown to blackish. Aedeagus with parameres not abruptly narrowed, internal sac lacking U­shaped sclerite. .... .. .. 2

2 Parameres gradually narrowed posterior of mid­length, internal sac with two narrow proximal rods. ................. S. pattens sp. nov.

Parameres abruptly widened posterior of mid­length, internal sac lacking long rods. .. S. ophthalmica (Achard)