Pison penicillatum 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 : 332-335

Pison penicillatum Pulawski , species nova

Figures 793 -801.

NAME DERIVATION.– Penicillatum is a Latin neuter adjective derived from penicillum, or paintbrush, with reference to the setal brushes on male gastral segment VII.

RECOGNITION.– Pison penicillatum is an all black species, with three submarginal cells, the second recurrent vein interstitial with the second intersubmarginal vein or nearly so, and the setae appressed on tergum I. In both sexes, the sterna are sparsely punctate: sternum II basomedially has large punctures that are several to many diameters apart (except densely punctate at the very base), and it is impunctate apicomesally ( Fig. 795 ); the following sterna are practically impunctate mesally. In the female, the clypeal lamella is obtusely angulate ( Fig. 793 ). In the male, sternum VII, and to a lesser degree tergum VII, have a tuft of dense, erect setae posterolaterally ( Fig. 796 ), and sternum VIII is not emarginate apically, a character combination similar to that of P. naralte (in which, however, the erect setae are present on the apicolateral corners of sterna IV and V). Pison penicillatum differs in having the setae of the upper frons about as long as the midocellar diameter (about as long as 0.5 × midocellar diameter in P. naralte ), those on the scutum in most specimens sparse, erect, at least as long as one midocellar diameter (rather than appressed), and those on the lower gena are 1.5-2.0 × as long as the midocellar diameter (shorter than midocellar diameter in P. naralte ) Also, sternum II is impunctate along the midline or has a few sparse punctures (except basally), sternum V has no apical sulcus, erect setae of sternum VII are as long as midocellar diameter, and sternum VIII has an obtuse longitudinal swelling ( Fig. 797 ), whereas in P. naralte sternum II is closely punctate except impunctate on the apical depression, sternum V has a well defined medi- an sulcus on the apical depression, erect setae of sternum V are twice as long as midocellar diameter, and sternum VIII has no longitudinal swelling.

DESCRIPTION.– Frons with well-defined punctures that are less than one diameter apart; interspaces conspicuously microsculptured. Occipital carina joining hypostomal carina. Gena narrow in dorsal view. Labrum not emarginate. Anteromedian pronotal pit transversely elongate, about twice as long as midocellar diameter. Scutum not foveate along flange, without short longitudinal ridges adjacent to posterior margin; scutal punctures conspicuous, averaging about one diameter apart on disk; interspaces microsculptured, dull. Tegula enlarged. Mesopleural punctures well defined, compressed against each other. Postspiracular carina absent. 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 irregularly obliquely ridged, punctate between ridges; side with well-defined punctures, with interspaces merging into irregular ridges; posterior surface conspicuously, transversally ridged. Second submarginal cell small: its height equal to 0.5-0.6 × the distance between its tip and the marginal cell. Posteroventral forefemoral surface closely punctate, punctures small but not microscopic. Punctures of tergum I, on horizontal part, averaging more than one diameter apart. Sternum II basomedially with large punctures that are several to many diameters apart (except densely punctate at very base), impunctate apicomesally ( Fig. 795 ); following sterna practically impunctate mesally.

Setae silvery, both appressed and erect on frons (appressed setae oriented ventral, erect setae as long as midocellar diameter), on scutum short, suberect, dense, and in most specimens long, sparse (long setae equal to midocellar diameter), appressed on tergum I; setae of lower gena sinuous, 1.5-2 × as long as midocellar diameter; largely concealing integument on clypeus. Apical depressions of terga with silvery, setal fasciae.

Head, thorax, propodeum, legs, and gaster black, mandible dark ferruginous preapically.

♀.– Upper interocular distance equal to 0.72-0.74 × lower interocular distance; ocellocular distance equal to 1.0-1.1 × hindocellar diameter, distance between hindocelli equal to 1.3-1.4 × hindocellar diameter; eye height equal to 0.86-0.88 × distance between eye notches. Free margin of clypeal lamella obtusely angulate ( Fig. 793 ). Dorsal length of flagellomere I 2.1-2.2 × apical width, of flagellomere IX 1.0-1.1 × apical width. Mandible: trimmal carina with small incision shortly beyond midlength. Length 7.2-7.9 mm; head width 2.2-2.5 mm.

♂.– Upper interocular distance equal to 0.84-0.88 × lower interocular distance; ocellocular distance equal to 1.1-1.5 × hindocellar diameter, distance between hindocelli equal to 1.1-1.3 × hindocellar diameter; eye height equal to 0.86 × distance between eye notches. Free margin of clypeal lamella acutely angulate ( Fig. 794 ). Dorsal length of flagellomere I 1.8 × apical width, of flagellomere X 0.9 × apical width. Tergum VII and sternum VII posterolaterally with tuft of dense, erect setae ( Fig. 796 ), setae of sternum VII as long as midocellar diameter. Sternum VIII rounded apically ( Fig. 797 ), with obtuse, longitudinal swelling, in lateral view: Fig. 798 . Genitalia: Figs. 799, 800 . Length 6.7-8.2 mm; head width 1.9-2.3 mm.

GEOGRAPHIC DISTRIBUTION (Fig. 801).– New South Wales, Northern Territory, Queensland, Western Australia.

RECORDS.– HOLOTYPE: ♀, AUSTRALIA: New

South Wales: Crowdy Bay National Park, 19-21

Nov 1979, N.W. Rodd (AMS).

PARATYPES: AUSTRALIA: Northern Territory :

Adelaide River at 13°14ʹS 131°06ʹE (1 ♂, NTM) ;

near Finniss River at 12°57ʹS 130°33ʹE, 21-27 Apr

1998, M. Hoskins (1 ♀, NTM); Gregory National

Park at 15°58.3ʹS 130°29.3ʹE, 6-9 June 2001,

T. Weir, K. Pullen, and P. Bouchard (1 ♀, CAS), at

16°6.4ʹS 130°25.4ʹE, 4-12 June 2001, F.D. Parker,

M.E. Irwin, and C. Lambkin (1 ♂, ANIC), at

16°06ʹ42ʺS 130°25ʹ23ʺE, 24 May – 5 June 2001,

T. Weir, K. Pullen, and P. Bouchard (1 ♀, CAS), at

16°06ʹ47ʺS 130°25ʹ24ʺE, 24 May – 4 June 2001,

M.E. Irwin and F.D. Parker (1 ♂, CAS), and Figure 801. Collecting localities of Pison penicillatum 16°07ʹ55ʺS 130°26ʹ11ʺE, M.E. Irwin, F.D. Parker, Pulawski, sp. nov .

and C. Lambkin (1 ♂, ANIC) ; Gregory National Park near Timber Creek on Victoria River bank at 15°37.8ʹS 130°28.6ʹE, 10 Apr 2008, W.J. Pulawski and G.A. Williams (1 ♀, CAS) ; Jabiru , 5-9 June 1984. I.D. Naumann (1 ♀, 2 ♂, ANIC) ; Keep River National Park at 15°45.4ʹS 129°5.6ʹE, 8 June 2001, F. D. Parker and M.E. Irwin (3 ♂, CAS) , at 15°45ʹ44ʺS 129°05ʹ55ʺE, M.E. Irwin and F.D. Parker , 8 June 2001 (2 ♂, CAS) and 10-20 June 2001 (1 ♂, CAS) , at 15°45ʹ30ʺS 129°06ʹ28ʺE, 14 May – 20 June 2001, M.E. Irwin, F.D. Parker, and C. Lambkin (1 ♂, CAS) and 3-17 June 2001, T. Weir, K. Pullen, and P. Bouchard (1 ♀, 1 ♂, ANIC) , at 15°45ʹ42ʺS 129°06ʹ45ʺE, 7-10 June 2001, M.E. Irwin, F.D. Parker, and C. Lambkin (1 ♀, CAS) , at 15°45ʹ44ʺS 129°05ʹ55ʺE, F.D. Parker and M.E. Irwin , 14 May – 20 June 2001 (1 ♀, CAS) and 9 June 2001 (3 ♀, ANIC) , at 15°47ʹ49ʺS 129°06ʹ31ʺE, M.E. Irwin, F.D. Parker, and C. Lambkin , 3-6 June 2001 (1 ♀, 2 ♂, CAS) , 6-8 June 2001 (1 ♂, ANIC) , and 7 June 2001 (2 ♀, CAS) , at 15°57ʹ33ʺS 129°01ʹ44ʺE, M.E. Irwin, F.D. Parker, and C. Lambkin , 14 May – 20 June 2001 (1 ♀, ANIC) , 3-8 June 2001 (2 ♀, CAS) , at 15°57ʹ55ʺS 129°01ʹ52ʺE, 14 May – 20 June 2001, M.E. Irwin, F.D. Parker, and C. Lambkin (1 ♀, ANIC) , at 15°57ʹ59ʺS 129°01ʹ47ʺE, 3 June 2001, F.D. Parker (1 ♀, ANIC) , at 15°57ʹ55ʺS 129°01ʹ52ʺE, M.E. Irwin, F.D. Parker, and C. Lambkin , 10-13 June 2001 (1 ♂, ANIC) , and 13-20 June 2001 (1 ♀, CAS) , at 15°58ʹ19ʺS 129°02ʹ18ʺE, 3 June 2001, F.D. Parker and M.E. Irwin (3 ♀, CAS) ; Mango Plantation, M. Hoskins , at 12°47ʹS 130°57ʹE, 12 Apr 1997 (3 ♀, NTM) and at 12°52ʹS 130°35ʹE, 18 Jul 1997 (3 ♀, 1 ♂, NTM) ; 16 km NE Mount Cahill at 12°50ʹS 132°51ʹE, 23 May 1973, T. Weir and T. Angeles (1 ♀, NTM) ; Nourlangie Creek 6 km E Mount Cahill at 12°52ʹS 132°46ʹE, 18 Nov 1972, J.C. Cardale (1 ♂, ANIC) ; Victoria Highway 38.5 km SW Timber Creek at 15°42ʹ40ʺS 130°07ʹ48ʺE, 6-13 June 2001, M.E Irwin, F.D. Parker, and C. Lambkin (1 ♀, ANIC; 2 ♀, CAS) ; Virginia 31 km SE Darwin Central Business District at 12°33ʹS 131°02ʹE, 7 Sept 1997, S.M. Gregg (1 ♂, NTM) . Queensland: Heathlands at 11°45ʹS 142°35ʹE, 21 Oct – 22 Nov 1992, P. Zborowski and A. Calder (1 ♀, ANIC) ; Keppel Sands at 23°19.5ʹS 150°47.6ʹE, 28 Oct 2006, V. Ahrens and W.J. Pulawski (1 ♀, CAS) . Western Australia: Carson escarpment at 14°49ʹS 126°49ʹE, 9-15 Aug 1975, I.F.B. Common and M.S. Upton (1 ♂, ANIC) ; Drysdale River at 15°02ʹS 126°55ʹE, 3-8 Aug 1975, I.F.B. Common and M.S. Upton (1 ♀, ANIC) ; Kalumburu Mission , 15 Sept 1985, Anne and Les Dollin (1 ♀, ANIC) ; Mining Camp in Mitchell Plateau at 14°49ʹS 125°50ʹE, 9-19 May 1983, I.D. Naumann and J.C. Cardale (3 ♀, 1 ♂, ANIC) and at 14°52ʹS 125°50ʹE, 2-6 June 1988, I.D. Naumann (1 ♂, ANIC) ; 4 km SW Mining Camp in Mitchell Plateau at 14°52ʹS 125°50ʹE, 2-6 June 1988, I.D. Naumann (1 ♀, ANIC) .

Figures

FIGURES 793-796. Pison penicillatum Pulawski, sp. nov. (793) Female clypeus and mandibles; (794) Male clypeus and mandibles; (795) Female sternum II; (796) Apex of male gaster in lateral view.

FIGURES 797-800. Pison penicillatum Pulawski, sp. nov., male. (797) Sternum VIII (ventral surface); (798) Sternum VIII in lateral view; (799) Genitalia in dorsal view; (800) Genitalia in lateral view.