Revision of the genera of Picrotini (Coleoptera: Cryptophagidae: Cryptophaginae) Author Gimmel, Matthew L. Santa Barbara Museum of Natural History, 2559 Puesta del Sol Rd, Santa Barbara, CA 93105 USA; e-mail: phalacrid @ gmail. com Author Leschen, Richard A. B. New Zealand Arthropod Collection, Manaaki - Whenua Landcare Research, Private Bag 92170, Auckland, New Zealand; text Acta Entomologica Musei Nationalis Pragae 2022 Acta. Ent. Mus. Natl. Pragae 2022-06-21 62 1 61 109 http://dx.doi.org/10.37520/aemnp.2022.006 journal article 10.37520/aemnp.2022.006 1804-6487 7161221 42A5070B-F287-4B14-84A1-A57F7E274CE6 Orthoscelis transversus sp. nov. ( Figs 52 , 96 , 103 ) Type material. Hඈඅඈඍඒඉൾ: male ( ANIC ), labeled: “ 41.30S 145.20, TAS Savage R. Pipeline Rd 20 Apr. 1989 Tube 11 pyrethrum knockdown H. Mitchell”. Pൺඋൺඍඒඉൾඌ (529): AUSTRALIA : Nൾඐ SඈඎඍH Wൺඅൾඌ: Comboyne, J. Armstrong (1, ANIC ); Jamberoo Mountain Road, 34°39′S 150°43′E , at escarpment, subtropical rainforest, 25 December 1993 , C. Reid (2, ANIC ); Kosciusko NP, 0.8 km SW Leather Barrel Creek Picnic Area, 36°32′S 148°11′E , 108 m , open Eucalyptus forest with shrubby understorey, pyrethrum fogging large old Eucalyptus logs, 21 February 1993 , A. Newton & M. Thayer (1, ANIC ); Kosciusko NP, SSW Pinnacle Mountain, Grass Flat Creek, 760 m , Berlesate, 9 December 1999 , R. Leschen (1, NZAC ); Unumgar SF, near Grevillia, Coxs Road, 28°27′S 152°45′E , 580 m , subtropical rainforest, flight intercept (window) trap, 2–11 January 1987 , A. Newton & M. Thayer (1, ANIC ). Tൺඌආൺඇංൺ: 10 km ENE Nunamara, 41°22′S 147°24′E , ex pan trap, 12 January – 6 February 1983 , I. Naumann & J. Cardale (7, ANIC ); 14 km S Bronte Park, 42°15′S 146°29′E , Malaise, ethanol, 15 January – 3 February 1983 , I. Naumann & J. Cardale (1, ANIC ); 2 km NE by N Mt. Ossa, 41°52′S 146°03′E , 1000 m , closed forest litter, flight intercept trap #3, 30 November 1990 – 8 January 1991 , E. Nielsen & E. Edwards (16, ANIC ); same except 8 January – 12 February 1991 ,A.Calder & W. Dressler (7, ANIC ); same except 13 February – 7 March 1991 , I. Naumann & M. Horak (4, ANIC ); 32 km N Smithton, Dismal Swamp, mixed Nothofagus cunninghami & Acacia melanoxylon , litter in crown of Dicksonia antarctica , 26 November 1977 , J. Kethley (1, FMNH ); 4 km E Rosebery, 41°47′S 145°35′E , Malaise, ethanol, 16 January – 1 February 1983 , I. Naumann & J. Cardale (2, ANIC ); 4 km S Mt. Oakleigh, 41°51′S 146°03′E , 860 m , closed forest, Malaise trap #3, 8 January – 12 February 1991 , A. Calder & W. Dressler (13, ANIC ); same except flight intercept trap #2 (1, ANIC ); 4 km S Mt. Oakleigh, 41°51′S 146°03′E , 880 m , closed forest, Malaise trap #3, 1 March 1990 , W.E.B.S. (3, ANIC ); same except 7 November 1990 (4, ANIC ); same except 13 February – 7 March 1991 , I. Naumann & M. Horak (5, ANIC ); same except 30 November – 8 January 1991 , E. Nielsen & E. Edwards (3, ANIC ); same except flight intercept trap #2 (2, ANIC ); 4 km SE Weldborough, 41°14′S 147°56′E , 13 January – 7 February 1983 , I. Naumann & J. Cardale (2, ANIC ); same except ex pan trap (4, ANIC ); Ben Ridge Road, 5.2 km E Telopea Road, 41°21′S 147°40′E , 870 m , Nothofagus cunninghamii rainforest, ex window trap, 16 January – 1 February 1993 , A. Newton & M. Thayer (1, ANIC ); Bennets Road, Canopy Walk, 7 km WNW Geeveston, 43°09′S 146°50′E , on shrub white flowers, 14 February 1992 , D.S. Horning, Jr. (1, ANIC ); Big Sassy Creek, 42°42′S 147°52′E , rainforest, pyrethrum knockdown tube 144, 12 May 1989 , Greenslade & Rounsevell (2, ANIC ); same except Atherosperum rainforest, pyrethrum knockdown tube 137, Diggle (4, ANIC ); same except pyrethrum knockdown tube 138, H. Mitchell (3, ANIC ); Celery Top Islands, Bathurst Harbour, 43°22′S 146°09′E , 4 December 1990 , I. Naumann (1, ANIC ); same except Malaise trap, 3 December 1990 – 15 January 1991 , E. Nielsen & E. Edwards (5, ANIC ); same except closed forest, Malaise trap #2, 7 December 1990 – 15 January 1991 (23, ANIC ; 5, TMAG ); same except 15 April – 29 May 1991 , M. Comfort (7, ANIC ); same except 29 May – 29 August 1991 (24, ANIC ); same except 15 March – 15 April 1991 , E. Edwards & J. Berry (15, ANIC ); same except 20 February – 15 March 1991 , M. Horak & P. McQuillian (10, ANIC ); same except flight intercept trap #2 (1, ANIC ); same except 7 December 1990 – 15 January 1991 , E. Nielsen & E.Edwards (27, ANIC ); Claytons,Bathurst Harbour, 43°22′S 146°06′E , flight intercept trap #2, 15 January 1991 – 20 February 1991 , A. Calder & W. Dressler (6, ANIC ); same except 29 August – 28 November 1991 , I. Naumann & G. Clarke (1, ANIC ); same except flight intercept trap #3, 7 December 1990 – 15 January 1991 , E. Nielsen & E. Edwards (16, ANIC ); same except 15 January – 20 February 1991 , A. Calder & W. Dressler (3, ANIC ); same except 20 February – 15 March 1991 , M. Horak & P. McQuillian (2, ANIC ); same except 29 August – 28 November 1991 , I. Naumann & G. Clarke (3, ANIC ); same except Malaise trap, 3 December 1990 – 15 January 1991 , E. Nielsen & E. Edwards (5, ANIC ); same except closed forest, Malaise trap #2, 15 January – 20 February 1991 , A. Calder & W.Dressler (20, ANIC ); same except Malaise trap #3, 7 December 1990 – 15 January 1991 (26, ANIC ); same except E. Nielsen & E. Edwards (6, ANIC ); same except 15 January – 20 February 1991 , A.Calder & W.Dressler (7, ANIC ); same except 20 February – 15 March 1991 , M.Horak & P.McQuillian (13, ANIC ); same except 15 March – 15 April 1991 , E. Edwards & J. Berry (6, ANIC ); same except 15 April – 29 May 1991 , M. Comfort (8, ANIC ); same except 26 May – 29 August 1991 (1, ANIC ); same except 29 August – 28 November 1991 , I. Naumann & G. Clarke (9, ANIC ); Cradle Mountain,campground, 41°35′S 145°56′E , 880 m , tree 4 site 2, pyrethrum knockdown tube 233, 14 November 1989 , H. Mitchell (1, ANIC ); same except tree 3, pyrethrum knockdown tube 236, 15 November 1989 , R. Coy (5, ANIC ); same except tree 3 site 2, pyrethrum knockdown tube 172, H. Mitchell (1, ANIC ); same except edge tree 2, pyrethrum knockdown tube 173, 16 November 1989 (1, ANIC ); same except edge tree 1, pyrethrum knockdown tube 174 (1, ANIC ); same except tree 1, pyrethrum knockdown tube 313 (2, ANIC ); Cradle Mountain, Lake St. Clair NP, Waldheim Weindorfers Forest, 41°38′S 145°47′E , 940 m , Athrotaxis selaginoides / Nothofagus cunninghamii forest, ex window trap, 14–30 January 1983 , A. Newton & M. Thayer (1, ANIC ); Lake Chisholme Forest Reserve, 41°08′S 145°04′E , 180 m , Eucalyptus obliqua forest, ex window trap, 12–29 January 1983 , A. Newton & M. Thayer (5, ANIC ); Melaleuca near Bathurst Harbour, 43°25′S 146°10′E , closed forest litter, flight intercept trap #1, 7 December 1990 – 15 January 1991 , E. Nielsen & E. Edwards (1, ANIC ); same except closed forest, Malaise trap #1, 15 January – 20 February 1991 , E. Nielsen & E. Edwards (4, ANIC ); Mt. Barrow Road, 890 m , beating foliage Nothofagus cunninghamii , 15–17 February 1980 , A. Newton & M. Thayer (1, ANIC ); Mt. Michael, 41°11′S 148°00′E , 740 m , pyrethrin knockdown tree 1, tube 176, 26 November 1989 , R. Coy (6, ANIC ); same except tube 180, 27 November 1989 , H. Mitchell (1, ANIC ); same except tube 181, R. Coy (1, ANIC ); same except pyrethrin knockdown tree 2, tube 185, 26 November 1989 , H. Mitchell (2, ANIC ); same except tube 186, R. Coy (7, ANIC ); same except pyrethrin knockdown tree 1, tube 187 (5, ANIC ); same except tube 188, H.Mitchell (3, ANIC );same except tube 202, sweeping, 27 November 1989 (4, ANIC ); Murchison Highway, State Reserve, Que River Mine Road, 41°36′S 145°41′E , 680 m , Nothofagus cunninghamii forest, window trap, 11–27 January 1983 ,A.Newton & M.Thayer (2, ANIC ); Old Farm Road, 2 km E Mt.Wellington, 42°54′S 147°61′E, sweeping, 20 June 1989 , P. Greenslade (2, ANIC ); Pelion Gap, Mt. Ossa, 41°50′S 146°03′E , 1120 m , closed forest, Malaise trap #6, 30 November 1990 – 8 January 1991 , E. Nielsen & E. Edwards (5, ANIC ); Pelion Hut, 3 km S Mt.Oakleigh, 41°50′S 146°03′E , 860 m , Nothofagus , pyrethrin knockdown log and tree roots, April – May 1992 , P. Greensla- de & M. Comfort (1, ANIC ); same except closed forest, Malaise trap #1, 30 November 1990 – 8 January 1991 , E.Nielsen & E. Edwards (3, ANIC ); same except 8 January – 12 February 1991 , A. Calder & W. Dressler (4, ANIC ); same except Malaise trap #2, 30 November 1990 – 8 January 1991 , E. Nielsen & E. Edwards (11, ANIC ); same except 8 January – 12 February 1991 , A. Calder & W. Dressler (2, ANIC ); same except 9–21 November 1991 , I. Naumann & G. Clarke (3, ANIC ); same except 13 February – 7 March 1991 , I. Naumann & M. Horak (1, ANIC ); same except Malaise trap #4, 8 January – 12 February 1991 , A. Calder & W. Dressler (8, ANIC ); same except 30 November 1990 – 8 January 1991 , E. Nielsen & E. Edwards (3, ANIC ); same except 8 January – 12 February 1991 , A. Calder & W. Dressler (1, ANIC ); same except 9–21 November 1991 , I. Naumann & G.Clarke (2, ANIC ); same except 26 September – 9 November 1991 , Smith & Thomas (3, ANIC ); same except 13 February – 7 March 1991 , I. Naumann & M. Horak (4, ANIC ); same except 7 March – 9 April 1991 , E. Edwards & J. Berry (2, ANIC ); same except Malaise trap #5, 30 November 1990 – 8 January 1991 , E. Nielsen & E.Edwards (4, ANIC ); same except I. Naumann & M.Horak (6, ANIC ); same except 9–21 November 1991 , I. Naumann & G. Clarke (5, ANIC ); same except 26 September – 9 November 1991 , Smith & Thomas (5, ANIC ); same except 7 March – 9 April 1991 , E. Edwards & J. Berry (8, ANIC ); same except flight intercept trap #1, 30 November 1990 – 8 January 1991 , E. Nielsen & E. Edwards (5, ANIC ); same except 8 January – 12 February 1991 , A. Calder & W. Dressler (1, ANIC ); same except Malaise trap #2, 6 November 1990 , W.E.B.S. (3, ANIC ); same except Malaise trap #5, 9 April – 6 June 1991 , M. Comfort (2, ANIC ); Sandspit Forest Reserve, S of Orford, 42°43′S 147°50′E , Eucalyptus globulus with rainforest understory, ex window trap, 17 January – 2 February 1983 , A. Newton & M. Thayer (1, ANIC ; 1, FMNH ); same except pyrethrum fogging large old fungusy logs, 2 February 1983 (2, ANIC ); Savage River, Pipeline Road, 41°30′S 145°20′E , Eucryphia , pyrethrum knockdown tube 73, 20 April 1989 , B. Brown (1, ANIC ); same except Nothofagus , pyrethrum knockdown tube 75, 19April 1989 (5, ANIC ); Schulhofs Road, 8.7 km NE Upper Blessington, 41°26′S 147°36′E , 870 m , Eucalyptus delegatensis / Eucalyptus obliqua forest, ex window trap, 16 January – 1 February 1993 ,A. Newton & M. Thayer (3, ANIC ; 1, FMNH ); Warra Warra Valley, 10 January 2002 , R.Leschen (1, NZAC ). Vංർඍඈඋංൺ: Baw Baw Alpine Reserve, 0.7 km NE Neulynes Mill, 37°51′S 146°15′E , 1035 m , Eucalyptus delegatensis forest with Nothofagus cunninghamii , window trap, 14–26 February 1993 ,A. Newton & M.Thayer (1, ANIC ); Bendoo Bonang SF, Bonang highway, 56 km NNE Orbost, 37°15.42′S 148°43.49′E , 635 m , tree fern gully, Malaise trap, 11 January – 11 February 2005 , C. Lambkin & N. Starick (3, ANIC ); Cement Creek, N of Warburton 814, 37°43′S 145°42′E , 625 m , Eucalyptus regnans / Nothofagus cunninghamii , flight intercept (window) trap, 27 January – 11 February 1987 ,A. Newton & M.Thayer (1, ANIC ); Haines Junction, 1.9 km W on Turtons Track 809, 38°39′S 143°42′E , 525 m , wet sclerophyll forest, flight intercept (window) trap, 26 January – 8 February 1987 , A. Newton & M. Thayer (2, ANIC ); Macedon, 10 July 1946 , E. Smith (1, ANIC ); Otway NP, Binn Road, 4.3 km N Cape Orn, 38°43′S 143°35′E , wet sclerophyll forest, flight intercept (window) trap, 25 January – 8 February 1987 , A. Newton & M. Thayer (1, ANIC ); Otway NP, Maits Rest, 38°45′S 143°33′E , 260 m , wet sclerophyll Nothofagus cunninghamii , flight intercept (window) trap, 25 January – 8 February 1987 , A. Newton & M. Thayer (12, ANIC ; 3, FMNH ); Tarra-Bulga NP, Grand Ridge Road at Traralgon Balook Road, 38°25′S 146°34′E , ridge top open Eucalyptus / Acacia forest, ex window trap, 13–25 February 1983 , A. Newton & M. Thayer (1, ANIC ); Warburton, 2.2 km NE on Acheron Way, 37°44′S 145°43′E , 320 m , Eucalyptus regnans with Acacia , ex window trap, 15–27 February 1993 , A. Newton & M. Thayer (1, ANIC ). Figs 55–63. Habitus of species of Picrotini . 55 – Orthoscelis n. sp. 3 (Australia: NSW, Qld, Vic); 56 – Ostreacryptus basalis (Grouvelle, 1919) ; 57 – Ostreacryptus clarkae Leschen, 2001 ; 58 – Ostreacryptus helmsi (Reitter, 1880) ; 59 – Ostreacryptus insignis (Reitter, 1880) ; 60 – Ostreacryptus nigroapicalis (Blackburn, 1903) ; 61 – Ostreacryptus n. sp. 1 (Australia: WA); 62 – Ostreacryptus n. sp. 2 (Australia: Tas); 63 – Ostreacryptus n. sp. 3 (Australia: ACT). Scale bars = 1 mm. 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 73–76. Habitus of species of Picrotini . 73 – Thortus n. sp. 2 (New Zealand); 74 – Thortus n. sp. 3 (New Zealand); 75 – Thortus n. sp. 4 (New Zealand); 76 – Thortus n. sp. 5 (New Zealand). Scale bars = 1 mm. Diagnosis. This species may be distinguished from the three other known (but undescribed) putative species of Orthoscelis by the presence of very short tempora on the head, the lack of a platform at the anterior pronotal angle, the nearly parallel-sided pronotum, and the absence of postcoxal lines on abdominal ventrite 1 ( Fig. 96 ). Description. Length 1.30–1.60 mm . Color of dorsal and ventral surfaces pale reddish-brown ( Fig. 52 ). Dorsal setae primarily golden, long, vestiture converging to central point on pronotum, elytral setae uniformly directed posteriorly; with numerous suberect setae on elytral disc and long erect setae along lateral edges of elytra. Ventral surfaces with dense, recumbent setae; gula and genae with coarse punctation; prosternum with extremely coarse, dense punctation, hypomeron with a few larger punctures anteriorly, punctures becoming finer posteriorly and laterally, puncture row present along posterior margin; triangular portion of prosternal process impunctate; punctation of metaventrite moderately coarse and dense, distinctly finer laterally and posteriorly; abdominal ventrites with punctures fine, similar to that of metaventrite. Head with fine, moderately dense punctation on frons, punctures separated by about one to two puncture diameters, with smooth and shiny interspaces; tempora present, short, much less than 1/4 length of eye in dorsal view; vertex not impressed immediately anterior to occipital ridge. Antennomere 2 subovate, longer than wide, antennomere 3 slightly narrower, slightly shorter than 2, antennomere 4 equal in width to 3, distinctly shorter than 3; antennomere 11 rounded, slightly longer than 10, much shorter than 9 and 10 combined. Pronotal length/width ratio ~0.75, almost parallel-sided, widest just anterior to middle, width across anterior angles slightly less than width across posterior angles; lateral edges faintly sinuate, without teeth, swellings, or platforms, marginal bead slightly thicker near anterior angles; anterior angles slightly projecting, obtuse, rounded, posterior angles right, sharp, slightly projecting, posterior margin very weakly sinuate, with broad, arcuate scutellar lobe; pronotum with broad, faint, shallow basal transverse impression, without carinae orparalateral plicae along base; with small, shallow glabrous pits just medial of posterior angles; lateral bead narrow, without wide glabrous space; pronotal punctation relatively fine, dense, similar to that of head, punctures separated by about one to two puncture diameters, with smooth and shiny interspaces; procoxal cavity without anterior notch; apex of prosternal process crenulate with minute setae. Elytra about 1.49× longer than combined width, about 1.45× wider than pronotum at greatest width, about 2.89× longer than pronotum at greatest length; discal punctures fine, relatively dense, separated by about one to one and a half puncture diameters, coarser near basal margin, gradually becoming finer posteriorly; sutural stria complete, reaching nearly to scutellar shield anteriorly; disc without subbasal impression; mesoventrital cavity shallow, not flanked by sharp carinae; metaventral discrimen extending slightly more than half length of mesoventrite. Pro- and mesotarsomere 5 longer than 1–4 combined.Abdominal ventrite 1 ( Fig. 96 ) without postcoxal lines; some ventrites with medial calli; sutures between ventrites without intersegmental crenulations. Aedeagus ( Fig. 103 ) with tegminal arms fused at apex, with a suture; interparameral process subacute; basipenis 3× longer than distipenis and about 2× longer than wide, outer rims weakly crenulate, lateral lobes narrowly separated. 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. Biology. We have examined hundreds of this species and most are collected by mass sampling techniques, Malaise and flight intercept traps and by pyrethrum fogging of various trees. Etymology. From the Latin participle “ transversus ”, in reference to the strongly transversely quadrate pronotum. Distribution. Distributed in southeastern Australia from Tasmania , where most of the material originated, north to New South Wales .