Pison carinigerum Pulawski, 2018

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 : 118-120

Pison carinigerum Pulawski , species nova

Figures 220-226.

NAME DERIVATION.– Carinigerum is derived from two Latin words: carina and the suffix – ger (neuter: gerum), a bearer; with reference to the carinate lower gena of this species.

RECOGNITION.– Pison carinigerum is unique within the genus in having conspicuous, oblique ridges on the lower gena ( Fig. 222 ). The expanded hypostomal carina and the presence of an abductor ridge on the outer mandibular surface ( Fig. 221 ) are subsidiary recognition features. The female is unknown.

DESCRIPTION.– Frons dull, finely, shallowly punctate, punctures less than one diameter apart. Hypostomal carina expanded, highest posteriorly (its greatest height about 0.5 × midocellar diameter). Gena narrow in dorsal view, lower gena with well-defined, oblique ridges emerging from hypostomal carina ( Fig. 222 ). Labrum emarginate. Anteromedian pronotal pit transversely elongate, about as long as midocellar diameter. Scutum not foveate along flange, without longitudinal ridges adjacent to posterior margin; scutal punctures minute, averaging less than one diameter apart. Tegula slightly enlarged. Mesopleural punctures well defined, nearly compressed against each other. Postspiracular carina present, about as long as midocellar diameter. 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 finely, obliquely ridged, punctate between ridges; side ridged, punctate between ridges; posterior surface transversely ridged, punctate between ridges. Posteroventral forefemoral surface minutely, closely punctate. Hindcoxal dorsum with outer margin obtusely carinate. Outer surface of hindtibia with evanescent spines. Punctures of tergum I, on horizontal part, slightly more than one diameter apart anterior to apical depression. Sterna punctate throughout. Setae silvery, appressed on upper frons (oriented ventrally), postocellar area, scutum, and tergum I; on lower gena suberect, straight (curved apically), about as long as 0.6 × midocellar diameter; not concealing integument on clypeus. Apical depressions of terga with silvery, setal fasciae. Body all black, mandible dark reddish mesally.

♀.– Unknown.

♂.– Upper interocular distance equal to 0.80 × lower interocular distance; ocellocular distance equal to 0.8 × hindocellar diameter, distance between hindocelli equal to 1.0 × hindocellar diameter; eye height equal to 1.02 × distance between eye notches. Free margin of clypeal lamella acutely angulate, concave on each side of midpoint

( Fig. 220 ). Dorsal length of flagellomere I

2.1 × apical width, of flagellomere X 1.2 × apical width. Mandible with abductor ridge ( Fig.

221). Sternum VIII emarginate apically ( Fig.

223). Genitalia: Figs. 224, 225 . Length 6.7

mm; head width 2.1 mm.

GEOGRAPHIC DISTRIBUTION ( Fig. 226 ).–

Known from one locality in southern part of

South Australia.

RECORDS.– HOLOTYPE: ♂, AUSTRALIA: South

Australia: Port Clinton Conservation Park at

34°09.4ʹS 138°03.2ʹE, 14 Dec 2010, V. Ahrens and

W.J. Pulawski ( SAM). FIGURE 226 . Collecting locality of Pison carinigerum Pulawski , sp. nov.

Figures

FIGURES 197–299. Pison bimbi Pulawski, sp. nov., female. (197) Clypeus and mandibles; (198) Head in dorsal view; (199) Pronotum in dorsal view. FIGURE 200. Collecting localities of Pison bimbi Pulawski, sp. nov.