Pison novaguineanum Tsuneki, 1983

Pulawski, Wojciech J., 2018, A Revision of the Wasp Genus Pison Jurine, 1808 of Australia and New Zealand, New Guinea, and the Pacific Islands (Hymenoptera: Crabronidae), Proceedings of the California Academy of Sciences 65, pp. 1-584 : 520-521

Pison novaguineanum Tsuneki

Pison novaguineanum Tsuneki, 1983c:49 , ♀. Holotype: ♀, Papua New Guinea: no specific locality (MTM), examined. – Tsuneki , 1983:42 (in key to Pison of New Guinea).

RECOGNITION.– This species is extremely similar to P. erimaense and may be an individual form of it. See the key for differences, and also Recognition under P. erimaense .

DESCRIPTION.– Frons swollen mesally above antennal base, frontal punctures fine, averaging about one diameter apart; interspaces dull, microsculptured. Occipital carina joining hypostomal carina. Gena narrow in dorsal view. Labrum not emarginate. Anteromedian pronotal pit transversely elongate, about 3 × as long as midocellar width. Scutum not foveate along flange, without longitudinal ridges adjacent to posterior margin; scutal punctures of medium size, most punctures about two or three diameters apart (some punctures less than one diameter apart); interspaces microsculptured, dull. Tegula slightly enlarged. Mesopleural punctures well defined, averaging about one diameter apart at center (some punctures up to two diameters apart). Postspiracular carina ill defined, about half as long as midocellar width; area between postspiracular carina and episternal sulcus with ill-defined sculpture. Metapleural sulcus costulate between dorsal and ventral metapleural pits. Propodeum with irregular longitudinal carina separating side from dorsum and posterior surface and extending from gastral socket area toward spiracle; dorsum punctate, punctures several diameters apart near midline, about one diameter apart laterally, with middle carina in shallow sulcus, interspaces unsculptured; side with well-defined punctures that are less than one diameter apart, interspaces merging into small ridges; posterior surface conspicuously, transversely ridged. Posteroventral forefemoral surface minutely punctate, punctures 1-2 diameters apart. Hindcoxal dorsum with outer margin sharply carinate; inner margin with well-defined tooth basally. Outer surface of hindtibia with evanescent spines. Punctures of tergum I several diameters apart between horizontal part and basal declivity. Sterna punctate throughout.

Setae silvery, subappressed on upper frons, appressed on scutum and tergum I, not concealing integument on clypeus; on lower gena subappressed, curved, about as long as midocellar diameter. Apical depressions of terga with silvery, setal fasciae.

Body all black, mandible dark brown preapically.

♀.– Upper interocular distance equal to 0.74 × lower interocular distance; ocellocular distance equal to 1.0 × hindocellar diameter, distance between hindocelli equal to 0.9 × hindocellar diameter; eye height equal to 0.94× distance between eye notches. Free margin of clypeal lamella evenly arcuate (as in erimaense , see Fig. 1226). Dorsal length of flagellomere I 2.9 × apical width, of flagellomere IX 1.3 × apical width. Mandible: trimmal carina with small incision shortly beyond midlength; acetabular groove with two rows of punctures. Length 9.5 mm; head width 3.3 mm.

♂.– Unknown.

GEOGRAPHIC DISTRIBUTION.– Known from an unspecified locality in Papua New Guinea.

RECORDS.– PAPUA NEW GUINEA: Province unknown: “British New Guinea [now Papua New Guinea], Mazalán collector” (1 ♀, MTM, holotype of Pison novaguineanum , labeled novaguineae by the species author) .