Pison breviclypeatum 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 : 115-116

Pison breviclypeatum Pulawski , species nova

Figures 210-213.

NAME DERIVATION.– The name breviclypeatum is derived from two Latin words: brevis, short, and clypeus; with reference to the short clypeus of this species.

RECOGNITION.– Pison breviclypeatum has the second recurrent vein received near the middle of the second submarginal cell, a black gaster, with tergum I slightly shorter than wide apically, and the distance between the eye orbit and the antennal socket less than half the socket width. The female can be recognized by an unusually short clypeus (the lamella narrow, transverse, barely protruding beyond the free margin of the lateral section, Fig. 210 ), the head subspherical in dorsal view ( Fig. 211 ), the upper interocular distance markedly larger (1.33-1.40 ×) than the lower interocular distance, a short flagellomere I (dorsal length 1.5-1.7 × apical width), and terga with only inconspicuous, silvery setae. The male is unknown.

DESCRIPTION.– Head subspherical in dorsal view ( Fig. 211 ). Frons dull, minutely punctate, punctures less than one diameter apart. Distance between antennal socket and orbit less than half socket width. Hypostomal and occipital carinae slightly expanded. Labrum emarginate. Ommatidia markedly larger in lower half of eye than those in dorsal half. Anteromedian pronotal pit transversely elongate, slightly longer than midocellar diameter. Scutum not foveate or inconspicuously foveate along flange, with short longitudinal ridges adjacent to posterior margin; scutal punctures minute, less than one diameter apart. Tegula slightly elongate. Mesopleural punctures fine but larger than those on scutum, at center about two diameters apart; interspaces microsculptured. Postspiracular carina present, about twice as long as midocellar diameter; integument depressed between postocellar carina and episternal sulcus. Metapleural sulcus not costulate between dorsal and ventral metapleural pits. Propodeum with fine longitudinal carina separating side from dorsum and posterior surface and extending from gastral socket area toward spiracle; dorsum minutely obliquely ridged ( Fig. 212 ), finely punctate between ridges, with middle carina but without medi- an sulcus; side punctate, with a few minute ridges near spiracle; posterior surface finely punctate, also finely transversely ridged in ventral half or so. Second recurrent vein joining second submarginal cell at or near its midlength. Hindcoxal dorsum with outer margin not carinate. Punctures of tergum I fine but well defined, averaging about one diameter apart on horizontal part. Sternum II punctate throughout, punctures 2-3 diameters apart mesally.

Setae silvery, appressed on frons, thorax, and tergum I, on lower gena suberect but not longer than one third of midocellar diameter; not concealing integument on clypeus; inconspicuous on terga.

Head, thorax, propodeum, and gaster black, antenna ferruginous (scape and apical flagellomeres darkened dorsally), mandible yellowish reddish mesally. Femora, tibiae, and tarsi ferruginous, forefemur black dorsally in holotype.

♀.– Upper interocular distance equal to 1.33-1.40 × lower interocular distance; ocellocular distance equal to 0.5-0.7 × hindocellar diameter, distance between hindocelli equal to 0.8-1.0 × hindocellar diameter; eye height equal to 0.98-1.00 × distance between eye notches. Clypeal lamella transverse, narrow, barely protruding beyond free margin of lateral section ( Fig. 210 ). Dorsal length of flagellomere I 1.5-1.7 × apical width, of flagellomere IX 1.1 × apical width. Length 5.1-6.3 mm; head width 1.3-1.4 mm.

♂.– Unknown.

GEOGRAPHIC DISTRIBUTION ( FIG. 213 ).– Eastern New South Wales, eastern Queensland.

RECORDS.– HOLOTYPE: ♀, AUSTRALIA: New South Wales: Wilson River Reserve 15 km NW Bellangry, 7 Dec 1986, D.J. Bickel ( AMS).

PARATYPES: AUSTRALIA: Queensland: Crediton State Forest at 21°11.8ʹS 148°29.9ʹE, 2 Nov 2006, V. Ahrens and W.J. Pulawski (1 ♀, CAS) ; Eungella National Park at 21°10.5ʹS 148°30.3ʹE, 5, 6, and 8 Nov 2012, V. Ahrens and W.J. Pulawski (3 ♀, CAS) ; Kuranda : Russet Park , 20 Oct 1987, T.W. Davies (1 ♀, CAS) .

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.