Calligaster etchellsii (Cameron, 1909)

Nugroho, Hari, Ubaidillah, Rosichon & Kojima, Jun-ichi, 2016, Taxonomy of the Indo-Malayan presocial potter wasp genus Calligaster de Saussure (Hymenoptera, Vespidae, Eumeninae), Journal of Hymenoptera Research 48, pp. 19-32 : 24-25

Calligaster etchellsii (Cameron, 1909)

Zeuthus [!] Zethus etchellsii Cameron, 1909: 206, ♂, "Kuching, Borneo", holotype [by monotypy] (BMNH).

Calligaster etchellsii ; Bequaert 1928: 157 (holotype examined; notes).

Remarks.

This species was described based on a single male specimen from "Kuching, Borneo" in combination with Zethus ( Cameron 1909: 206) and Bequaert (1928: 157) moved it to the genus Calligaster . Neither other records of this species have so far been published nor have we collected any wasps of this species in our rather intensive field collection at several places in Kalimantan.

Bequaert (1928: 157), having examined the holotype (by monotypy), stated "... quite a distinct species in the shape of the clypeus, which is unusually wide (twice as broad as high) and ends in a deep semi-elliptic emargination." Such a deep semi- elliptical emargination at the ventral margin of the male clypeus is also found in C. cyanoptera , while the male clypeus in the latter is about 1.5 times as wide as high.

Material examined.

No specimen examined.

Distribution.

Only the type locality [Kuching in Sarawak, Borneo Is.].