Eustenogaster palavanica Reyes, 1988

Saito, Fuki & Kojima, Jun-Ichi, 2007, A taxonomic revision of the hover wasp genus Eustenogaster van der Vecht (Insecta: Hymenoptera; Vespidae, Stenogastrinae), Zootaxa 1556, pp. 1-30 : 27

Eustenogaster palavanica Reyes, 1988

Eustenogaster palavanica Reyes, 1988: 387 , 392, figs. 25–29.

This species is similar to E. calyptodoma , but is easily distinguished from the latter by the following characters: in the female, larger than E. calyptodoma [length of head + mesosoma + first two terga 16.5–17.5 mm]; extreme apex of clypeus pointed; clypeus and supraclypeal area less hairy; sixth metasomal tergum with wide flat area in front of tubercle (similar to E. fumipennis , Fig. 28 ); in the male, volsella strongly produced ventrally.

Color of female: Body black, with following parts yellow: three longitudinal bands on clypeus ( Fig. 58 ), paired spots above and below antennal sockets, paired narrow bands along posterodorsal margin of pronotum, ending before reaching tegula, paired small spots on scutellum, anteromedian transverse band on metanotum, small scrobal spot (sometimes absent) and inverted L-shape large spot below it on mesepisternum, anterolateral and posterolateral spots on propodeum, anterior margin of second tergum, paired spots on third and fourth sterna, anterior bands on third to fifth terga; first metasomal tergum posteroventrally dark brown. Legs dark brown; lateral side of fore- and mid-tibiae, lateral spot on hind coxa, yellow.

Marking pattern of the male is similar to that of the female of E. calyptodoma , but the spot on the gena is absent, and the spots in the eye emargination and on the legs are reduced in size.

Material examined. Philippines: Palawan: Puerto Princesa: 5Ψ2ɗ (Paratypes of E. palavanica , GMNH), CKS [1ɗ; Irawan, 23–27.ii.1987; 5Ψ, Iwahig, 25.ii.1987; 1ɗ, Iwahig, 24–25.ii.1987].

Distribution: Philippines: Palawan.

Figures

FIGURE 58. Facial marking pattern of Eustenogaster species.

FIGURES 26 – 31. Eustenogaster fumipennis Saito sp. nov., holotype female; 26, head in frontal view. 27, mandible. 28, flat area of sixth metasomal tergum. 29, ocelli. 30, second metasomal tergum in dorsal view. 31, propodeum in dorsal view. Scale bars show 1 mm.