Pison leonorae 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 : 252-254

Pison leonorae Pulawski , species nova

Figures 582 -586.

NAME DERIVATION.– Leonorae is the genitive case of the Latin first declension, derived from Leonora, a town in Western Australia near which most specimens were collected.

RECOGNITION.– The male of P. leonorae (the female is unknown) has three submarginal cells, the second recurrent vein contiguous with the second intersubmarginal vein, and the setae appressed on tergum I. The apical margin of sternum VIII is either rounded, or straight, or slightly concave, but not emarginate (Fig. 583). The species has sparse, erect setae on the scutum, a feature shared with P. subtile and P. penicillatum . Pison leonorae differs from P. subtile by a number of characters given under that species (p. 438), and from P. penicillatum by the following: the propodeum has no longitudinal carina separating the side from the dorsum and the posterior surface (carina present in P. penicillatum ), tergum VI and sternum VII have no erect setae posterolaterally (such setae present in P. penicillatum ), the interocular distance at the vertex is equal to that at the clypeus or minimally greater (rather than equal to 0.84-0.88 × the interocular distance at the clypeus), and sternum II is punctate throughout (rather than largely impunctate apicomesally).

DESCRIPTION.– Frons dull, finely punctate, punctures less than one diameter apart. Occipital carina minimally separated from hypostomal carina. Labrum not emarginate. Anteromedian pronotal pit transversely elongate, somewhat shorter than midocellar diameter. Scutum not foveate along flange, without longitudinal ridges adjacent to posterior margin; scutal punctures well defined, less than one diameter apart; interspaces microsculptured. Tegula slightly enlarged. Mesopleural punctures compressed against each other. Postspiracular carina rudimentary or absent, no more than half as long as midocellar diameter. Metapleural sulcus not costulate between dorsal and ventral metapleural pits. Propodeum without longitudinal carina separating side from dorsum and posterior surface and extending from gastral socket area toward spiracle; dorsum irregularly, obliquely ridged, punctate between ridges; side ridged, punctate between ridges; posterior surface transversely ridged (ridges anastomosed dorsally), microscopically punctate between ridges. Posteroventral forefemoral surface finely, closely punctate. Punctures of tergum I, anterior to apical depression, about one diameter apart. Sterna II and III punctate throughout, punctures conspicuous and up to 2-3 diameters apart mesally.

Setae silvery, erect on frons, radiating from dorsal end of midfrontal carina, erect and sinuous on lower gena, sparse and erect on scutum (in addition to dense, short, erect setae), appressed on tergum I, largely to completely concealing integument on clypeus; setal length 1.5 × midocellar diameter on lower gena, 1.0 × on scutum (two specimens with strongly worn wings lack erect scutal setae, apparently a result of age). Apical depressions of terga with silvery, setal fasciae.

Body black, mandible ferruginous mesally.

♀.– Unknown.

♂.– Upper interocular distance equal to 1.0-1.06 × lower interocular distance; ocellocular distance equal to 1.7 × hindocellar diameter, distance between hindocelli equal to 1.0-1.1 × hindocellar diameter; eye height equal to 0.98 × distance between eye notches. Free margin of clypeal lamella acutely angulate ( Fig. 582 ). Flagellomeres III and IV minimally convex ventrally in most specimens examined, cylindrical in remaining specimens. Dorsal length of flagellomere I 1.8-2.0 × apical width, of flagellomere X 1.0-1.1 × apical width. Apical margin of sternum VIII rounded, straight, or slightly concave (Fig.

583). Genitalia: Figs. 584, 585. Length 8.0-9.1

mm; head width 2.9-3.0 mm.

GEOGRAPHIC DISTRIBUTION (Fig. 586).–

Known from one locality in northern Queensland and one in southern part of Western Australia.

RECORDS.– HOLOTYPE: ♂, AUSTRALIA: Western Australia: 28 mi. E Leonora , 18 Sept 1962, E.S.

Ross and D.Q. Cavagnaro (CAS).

PARATYPES: AUSTRALIA: Queensland: 3 km W

Batavia Downs at 12°40ˈS 142°39ˈE, 18 June –

FIGURE 586. Collecting localities of Pison leonorae 22 July 1992, P. Zborowski (1 ♂, ANIC). Western

Pulawski, sp. nov.

Australia: same data as holotype (8 ♂, CAS) .

Figures

FIGURE 582. Pison leonorae Pulawski, sp. nov., male. (582) Clypeus; (583) Sternum VIII (ventral view); (584) Genitalia in dorsal view; (585) Genitalia in lateral view.