Pison dives Turner

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 : 159-162

Pison dives Turner

Figures 329 -339.

Pison dives Turner, 1916b:608 , ♀. Lectotype: ♀, Australia: Queensland: Kuranda (BMNH) , present designation, examined. – Turner, 1916b:597 (in key to Australian Pison ); R. Bohart and Menke, 1976:335 (in checklist of world Sphecidae ); Cardale, 1985:259 (in catalog of Australian Sphecidae ).

LECTOTYPE DESIGNATION.– Turner did not mention the number of the specimens examined in the original description of Pison dives . I have designated as the lectotype the only existing specimen in The Natural History Museum, London.

RECOGNITION.– Pison dives is an all black species except for the golden tergal setae, with three submarginal cells. It is unique among such species in having the anterior half of the tegular margin straight or minimally concave, clearly contrasting with the rounded posterior half. The species is further characterized by the black, erect setae on the upper frons ( Fig. 332 ), postocellar area, scutum, scutellum, and metanotum, the frontal ( Fig. 331 ) and mesopleural punctures more than one diameter apart, with the interspaces conspicuously microsculptured and dull, and the sterna densely punctate throughout. Many females have numerous although sparse erect setae on tergum I; in the male the setae of tergum I are mostly appressed but a few are erect in several specimens. Additionally, male tergum VII is emarginate apically, whereas sternum VIII is rounded apically ( Fig. 336 ).

DESCRIPTION.– Frons dull, conspicuously microsculptured, shallowly punctate, punctures distance equal to 1.0-1.2 × hindocellar diameter, distance between hindocelli equal to 0.6-0.8 hindocellar diameter; eye height equal to 1.0 × distance between eye notches. Clypeal lamella obtusely pointed ( Fig. 329 ). Dorsal length of flagellomere I 2.5-2.9 × apical width, of flagellomere IX 1.7 × apical width. Mandible: trimmal carina with minimal incision at about two thirds of length. Length 9.0- 12.5 mm; head width 2.6-3.0 mm.

♂.– Upper interocular distance equal to 0.72-0.76 × lower interocular distance; ocellocular distance equal to 1.2-1.3 × hindocellar diameter, distance between hindocelli 0-9-1.0 × hindocellar diameter; eye height equal to 1.04 × distance between eye notches. Clypeal lamella rectangular ( Fig. 330 ). Flagellomeres III-V concave basoventrally, convex apicoventrally ( Fig. 334 ), only slightly so in small individuals, with glabrous tyloids that do not attain flagellomere apex. Dorsal length of flagellomere I 2.3-2.4 × apical width, of flagellomere X 1.4 × apical width. Tergum VII emarginate apically ( Fig. 335 ). Sternum VIII unusually short, rounded apically ( Fig. 336 ). Genitalia: Figs. 337, 338 . Length 7.5-8.0 mm; head width 2.2-2.5 mm.

GEOGRAPHIC DISTRIBUTION (Fig. 339).– Eastern Australia.

RECORDS.– AUSTRALIA: New South Wales:

Coocumbac Island Nature Reserve near Taree (1 ♀,

1 ♂, ANIC ), Lansdowne near Taree (7 ♀, 5 ♂,

AMS), 3 km N Lansdowne near Taree (1 ♀, ANIC),

0.5 km SE Lansdowne near Taree (1 ♀, ANIC) ,

Lorien Wildlife Refuge 3 km N and ca 1 km NNW

Lansdowne near Taree (1 ♀, ANIC; 4 ♀, 1 ♂, AMS;

2 ♂, CAS ), Manly: Kangaroo Park (1 ♀, ANIC) ,

Mooney Mooney Creek near Gosford (1 ♀, AMS) ,

15 km N Wauchope at 31°21ʹS 152°47ʹE (1 ♀,

AMS), Wilson River Primitive Reserve 15 km NW

Bellangry (1 ♀, AMS), Wollemi National Park

(northern edge) at 32°23.4ʹS 150°24.8ʹE (3 ♀, CAS) .

Queensland: Brisbane (1 ♀, RMNH; 3 ♀, QMB) ,

Brookfield (3 ♀, BMNH) , Eungella National Park at FIGURE 339. Collecting localities of Pison dives Turner. 21°10.5ʹS 148°30.3ʹE (67 ♀, 14 ♂, CAS; 2 ♀,

USNM), Kroombit Tops State Forest (4 ♀, AMS), Kuranda (1 ♀, BMNH, lectotype of Pison dives ), 1.5 km SE Kuranda (1 ♀, ANIC), Lake Barrine (1 ♀, QMB), Mackay (1 ♀, BMNH), Mission Beach (1 ♀, AMS), Mount Glorious at 27°20ʹS 152°45ʹE (1 ♂, MNKB), Paluma Range (1 ♀, CAS).

Figures

FIGURES 329-333. Pison dives Turner. (329) Female clypeus; (330) Male clypeus; (331) Upper frons of female; (332) Female head in lateral view; (333) Female gaster in dorsal view.

FIGURES 334-338. Pison dives Turner, male. (334) Basal flagellomeres; (335) Apical terga; (336) Sternum VIII (ven- tral view); (337) Genitalia in dorsal view; (338) Genitalia in lateral view.