Paragnetaria slipinskii, Gimmel & Leschen, 2022

Gimmel, Matthew L. & Leschen, Richard A. B., 2022, Revision of the genera of Picrotini (Coleoptera: Cryptophagidae: Cryptophaginae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 62 (1), pp. 61-109 : 103-104

Paragnetaria slipinskii sp. nov.

( Figs 67 , 80 )

Type material. Hඈඅඈඍඒඉൾ: female ( ANIC), labeled: “ 33.53S 140.44E

( GPS), 32km N of Renmark S.A., 11-26 Oct 1995, Pitfall trap, mallee, A.Lambie & K.R.Pullen // CALPERUM STATION/BOOKMARK BIOSPHERE RESERVE INVERTEBRATE SURVEY //ANIC Specimen [green label]”. Pൺඋൺඍඒඉൾඌ (4): AUSTRALIA: Nൾඐ SඈඎඍH Wൺඅൾඌ: Mt. Flora, near Mittagong, 34°22′S 150°25′E, 15 April 1976, R.J. Bartell (1, ANIC). SඈඎඍH Aඎඌඍඋൺඅංൺ: 31 km NW Renmark, Calperum Station, 33°59′S 140°30′E, dry frogamerry paddock, FIT, 30 March – 2 May 1995, K. Pullen (1, ANIC); 31 km NW Renmark, 33°59′S 140°30′E, Calperum Station/Bookmark Biosphere Reserve Invertebrate Survey, 2 May – 8 June 1995, flight/ground intercept trap, K.R. Pullen (1, ANIC). Vංർඍඈඋංൺ: Inglewood, G. Oke (1, MVMA).

Diagnosis. This species may be distinguished from the other known (but undescribed) putative species of Paragnetaria by its smaller size, stouter body, and protarsomere 4 about as long as protarsomeres 1–3 combined.

Description. Length 1.20–1.30. Color of body ( Fig. 67 ) dark brown, legs, mouthparts, and antennal club lighter. Dorsal setae uniformly silver, vestiture converging to central point on pronotum, pronotum and elytra with long, decumbent setae, elytra with scattered erect and suberect setae. Ventral surfaces with recumbent setae, shorter in length compared with those on dorsum; densely and uniformly punctate; prosternal process with sparse setae; punctation of head, metaventrite and abdominal ventrites less coarse and smaller in size than prosternum.

Head punctate with smooth and shiny interspaces. Antennomere 2 cylindrical, about 1.5–2× longer than wide, antennomere 3 longer than 4, 4 and 5 equal, 6 shorter than 5 and 6; 7, 8, and sometimes 9 about equal or 9 longer than 8; antennomere 11 longer than 9 and 10 ( Fig. 80 ). Pronotal length/width ratio ~0.76, widest at or just behind middle; lateral edges weakly convex and subparallel-sided, widened anteriorly, anterior angles not projecting, posterior angles acute and almost right; lateral edges each with 5–6 large setigerous tubercles; posterior margin not sinuate, very weakly posteriorly arcuate, with bead present at middle; pronotum lacking foveae or paralateral plicae; pronotal punctation similar to that of frons, punctures separated by 1 puncture diameter or less, smaller and denser at posterolateral corners. Elytra about 1.99× longer than combined width, about 1.31× wider than pronotum at greatest width, about 2.11× longer than pronotum at greatest length; punctation dense, punctures separated by 1–3 puncture diameters, becoming more diffuse posteriorly; sutural stria present to base; disc lacking impressions. Tarsomere 4 as wide as protarsomere 4 and as long as tarsomeres 1–3 combined.

Remarks. There is minor variation among the relative lengths of the antennomeres and the punctation of the pronotum and elytra among the specimens we have examined, but we have treated these as the same species. Eventually, males from these localities will need to be examined to confirm the species identity.

Etymology. The species name is patronymic for Adam Ślipiński (CSIRO), friend of the authors and renowned expert in a wide range of Coleoptera , as well as co-editor of the Australian Beetles series.

Figures

Figs 64–72. Habitus of species of Picrotini. 64 – Ostreacryptus n. sp. 4 (Australia: NSW, Tas, Vic); 65 – Ostreacryptus n. sp. 5 (New Zealand); 66 – Papuacryptus striatopunctatus sp. nov.; 67 – Paragnetaria slipinskii sp. nov.; 68 – Picrotus thoracicus Sharp, 1886; 69 – Picrotus n. sp. 1 (New Zealand); 70 – Thortus amoenus (Broun, 1912); 71 – Thortus ovalis Broun, 1893; 72 – Thortus n. sp. 1 (New Zealand: Auckland Islands). Scale bars = 1 mm. Abbreviations: pc = paramedial carina.

Figs 77–81. Characters of Picrotini. 77–78 – detail of pronotum. 77 – Chimaerocryptus johnsoni sp. nov.; 78 – Odonotosomatula carltoni sp. nov. 79 – pronotum and base of elytra, Humerocryptus n. sp. 1. 80 – antennal club, Paragnetaria slipinskii sp. nov. 81 – eye, Cryptothelypterus pteropilosus Leschen & Lawrence, 1991. Abbreviations: pp = paralateral plica.