Calligaster williamsi Bequaert, 1940

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 : 28-30

Calligaster williamsi Bequaert, 1940

Figs 4 , 8 , 12 , 15 , 18

Zethus (Calligaster) cyanopterus ; Williams 1919: 157-164 (natural history).

Calligaster n. sp.; van der Vecht 1937: 263.

Calligaster williamsi Bequaert, 1940: 124, fig. 1 A-D, ♀♂, "Los Baños, Luzon, Philippine Is.", holotype female (MCZ).

Diagnosis.

Calligaster williamsi can be distinguished from its congeners by the combination of the following characters: metasomal tergum I in lateral view barely convex dorsally, with preapical dorsal depression weakly produced (Fig. 4 ), in dorsal view weakly and evenly convex laterally (Fig. 8 ); longitudinal striae on tergum I strong, more or less regularly arranged (Fig. 8 ); apex of male terminal antennal flagellomere rounded [Fig. 18 ; bluntly pointed in C. cyanoptera (Fig. 17 )].

Material examined.

LUZON: 1♀ (IUNH), Los Banos , Laguna, 31.iii.1978 , T. Murota; 2♀ 1♂ (IUNH), Los Banos , Laguna, 2-5.viii.1978 , H. Kurokawa; 1♀ (IUNH), Univ. Phil. Los Banos , Laguna, 21.iii.1980 , J. Kojima; 1♂ (IUNH), Univ. Phil. Los Banos , Laguna, 10.iii.1980 , J. Kojima; 1♂ (IUNH), Univ. Phil. Los Banos , Laguna, 15.iii.1980 , J. Kojima; 1♂ (NSMT), Mt. Maquiling , Laguna Province, 17- 18.vi.1977 , Y. Kurosawa. MINDANAO: 1♀ (NSMT), N. Zamboanga, 5.xii.1994, J. Abella, Nagase coll.; 1♀ (NSMT), Aras-asan , Surigao, S. Mindanao, x.1978 .

Distribution.

Philippines: Luzon Is., Mindoro Is., Mindanao Is.

Remarks.

Van der Vecht (1937: 262) pointed out that the Phiippine species of Calligaster , of which life history was described by Williams (1919) under the name of Zethus (Calligaster) cyanopterus , was "not conspecific with C. cyanopterus " and mentioned that the species "will be described in a forthcoming paper by Prof. J. Bequaert." Bequaert (1940: 124-126) proposed Calligaster williamsi for the females and males from several places on Luzon Is. and Mindoro Is., with designation of a female from "Los Baños, Luzon" as the holotype.

As listed above, we examined specimens also from Mindanao Is., suggesting this species would be distributed throughout the Philippines Islands except for Palawan Is.

Figures

Figures 1 - 9. Calligaster species. 1 - 9 Female 1, 2, 6 C. viridipennis 3, 7 C. cyanoptera 4, 8 C. williamsi 5, 9 C. himalayensis 1 Body, lateral view 2 Head, frontal view 3 - 5 Metasomal segments I-II, lateral view 6 - 9 Metasomal tergum I, dorsal view. Scale 1 mm.

Figures 10 - 18. Calligaster species. 10 - 13 Female. 14 - 18 Male 10, 14, 17 C. cyanoptera 11 C. viridipennis 12, 15, 18 C. williamsi 13, 16 C. himalayensis 10 - 13 Female clypeus 14 - 16 Male clypeus 17, 18 Apex of male antenna. Scale 1 mm.