Copelatus nigrolineatus Sharp, 1882

Hendrich, Lars, Shaverdo, Helena, Hajek, Jiri & Balke, Michael, 2019, Taxonomic revision of Australian Copelatus Erichson, 1832 (Coleoptera, Dytiscidae, Copelatinae), ZooKeys 889, pp. 81-152 : 81

publication ID	https://dx.doi.org/10.3897/zookeys.889.39090
publication LSID	lsid:zoobank.org:pub:7E7A3D19-6D70-4039-8C08-7B248A27EB33
persistent identifier	https://treatment.plazi.org/id/087BF126-E5A4-5390-BB17-28742D32DD9F
treatment provided by	ZooKeys by Pensoft
scientific name	Copelatus nigrolineatus Sharp, 1882
status

Treatment

Copelatus nigrolineatus Sharp, 1882 Figures 8 View Figure 8 , 17 View Figure 17 , 26 View Figure 26 , 34 View Figure 34 , 35 View Figure 35

Copelatus nigrolineatus Sharp 1882: 577 (original description); Watts 1978: 122 (description); Watts 1985: 26 (general distribution); Larson 1993: 53 (habitat information); Larson 1997: 272 (habitat information); Hendrich 2003: 51 (new records); Watts 2002: 42 (checklist); Nilsson and Hájek 2019: 62 (catalogue).

Type locality.

"Australia, (Champion Bay, Carpentaria, Port Denison, Port Boweii)".

Type material.

Lectotype (designated by Watts 1978: 122): Male, " Lectotype " [round label with violet frame], "11 on each elytron" [hw label], "N.W. Australia. du Bulay" [hw label], "Sharp Coll. 1905-313." [printed label], "Type 677 Copelatus nigrolineatus n.sp. Australia" [hw label], " Copelatus nigrolineatus Sharp Det. C. Watts 1974" [hw label] (NHMUK). Paralecotypes : 1 male and 3 females, “Paralectotype” [round printed label with blue frame], “Cotype” [roundish label with yellow frame], "Port Denison 677" [hw label], "Sharp Coll. 1905-313" [printed label], " Copelatus nigrolineatus Sharp Cotype" [hw label] (NHMUK).

Additional material studied (415 specimens).

Western Australia: 43 exs., "AUSTRALIA/WA/Shire of Wyndham - East Kimberley, Great Northern Hwy, 50 km S Wyndham, Black Flag Creek, 15°52'1.22"S, 128°21'49.97"E, 50 m, 13.6.1999, Hendrich leg. (Loc. 4/104)" (CLH, ZSM); 10 exs., "AUSTRALIA/WA/Shire of Wyndham - East Kimberley, Gibb River Road, Durack River Crossing, 15°56'28.73"S, 127°13'9.01"E, 250 m, 13.6.1999, Hendrich leg. (Loc. 6/106)" (CLH); 7 exs., "AUSTRALIA/WA/Shire of Wyndham - East Kimberley, Gibb River Road, Drysdale River Crossing, 15°41'2.91"S, 126°22'42.53"E, 380 m, 14.6.1999, Hendrich leg. Loc. 9/109" (CLH); 3 exs., "AUSTRALIA/WA/Shire of Wyndham - East Kimberley, Gibb River Road, King Edward River Crossing, 14°54'10.13"S, 126°12'2.85"E, 280 m, 15.6.1999, Hendrich leg. Loc. 10/110" (CLH); 5 exs., "AUSTRALIA/WA/Shire of Wyndham - East Kimberley, Mitchell Plateau, Surveyors Pool, 14°40'26.54"S, 125°43'56.79"E, 150 m, 17.6.1999, Hendrich leg. Loc. 12/112" (CLH); 19 exs., "AUSTRALIA/WA/Shire of Wyndham - East Kimberley, Gibb River Road, 10 km E Hann River, Snake Creek, 16°30'50.92"S, 126°21'19.53"E, 470 m, 19.6.1999, Hendrich leg. Loc. 16/116" (CLH); 3 exs., "AUSTRALIA/WA/Shire of Wyndham - East Kimberley, Gibb River Raod, Barnett River Gorge, 16°32'15.17"S, 126°7'30.43"E, 450 m, 19.6.1999, Hendrich leg. Loc. 17/117" (CLH); 5 exs., "AUSTRALIA/WA/Shire of Derby - West Kimberley, Gibb River Road, King Leopold Range, 500 m, 5 km NW Mount Bell, intermit. creek, 17°9'43.80"S, 125°18'33.00"E, 23.6.1999, Hendrich leg. Loc. 22/122" (CLH); 6 exs., "AUSTRALIA/WA/Shire of Derby-West Kimberley, Gibb River Road/ Fairfield Leopold Road, Lennard River Bridge, 17°9'48.49"S, 125°13'36.53"E, 50 m, 24.6.1999, Hendrich leg. Loc. 23/123" (ZSM); 6 exs., "AUSTRALIA/ WA/Shire of Halls Creek, Old Halls Creek, Elvire River, 18°14'50.04"S, 127°46'45.39"E, 310 m, 27.6.1999, Hendrich leg. Loc. 28/128" (CLH); 3 exs., "AUSTRALIA/WA, Charnley River, 25 mi E Beverley Springs, 16°15'S, 125°26'E, 9.9.1969, Giuliani, D.D. leg." (WAM); 1 ex., "Kimberley Research Station, Kununurra nr. Wyndham [-15.46667, 128.1], 27.11.1956" (ANIC); 1 ex., "Western Australia, Pilbara, Millstream [-21.58333, 117.0667], 3.11.1970, Britton, E.B." (ANIC); 1 ex., "WA Muccangarra Pool 19/10/2008" (DPAW); 7 exs., "WA Mungajee Pool 14/10/2008" (DPAW); 1 ex., "Australia, WA, Pilbara, Hamersley Range, 17 km S Auski Roadhouse, Fig. Tree Crossing 400 m, 28.8.2002, 22°32'S, 118°44'E, Hendrich leg. (Loc. WA 9/173)" (CLH); 1 ex., "Australia, WA, Pilbara, Hamersley Range, Karijini N.P., Dales Gorge [Fortescue Falls and Circular Pool], 400 m, 28.8.2002, 22°29'S, 118°35'E, Hendrich leg. (Loc. WA 10/174)" (CLH); 3 exs., "Australia, WA, Pilbara, Hamersley Range, Karijini N.P., Kalamina Gorge, 450 m, 29.8.2002, 22°25'S, 118°23'E, Hendrich leg. (Loc. WA 11/175)", two specimens with "DNA Balke 3360", "DNA Balke 3361" [green printed label] (CLH); 1 ex., "Australia, WA, Pilbara, Hamersley Range, Karijini N.P., Knox Gorge, 450 m, 29.8.2002, 22°21'S, 118°18'E, Hendrich leg. (Loc. WA 12/176)" (CLH); 2 exs., "Australia, WA, Pilbara, De Grey River, River Crossing Hwy. No. 1, 72 km E of Port Hedland, 20 m, 24.8.2002, 20°10'S, 119°11'E, Hendrich leg. (Loc. WA 1/165)" (CLH); 15 exs., "Australia, WA, Pilbara, Yule River, River Crossing Camping Area at Hwy. No. 1, 53 km SW of Port Hedland, 20 m, 24.8.2002, 20°41'S, 118°17'E, Hendrich leg. (Loc. WA 2/166)" (CLH); 1 ex., "Australia, WA, Pilbara, Millstream Chichester N.P., McKenzie Springs, 200 m, 25.8.2002, 21°18'S, 117°12'E, Hendrich leg. (Loc. WA 3/167)" (CLH); 28 exs., "Australia, WA, Pilbara, Millstream Chichester N.P., Gregory Gorge, Palm Pool at River Crossing, 26.8.2002, 21°33'S, 117°03'E, Hendrich leg. (Loc. WA 5/169)" (CLH); 3 exs., "Australia, WA, Pilbara, Millstream Chichester N.P., Fortescue River side branch, SE Visitor Centre, 26.8.2002, 21°37'S, 117°07'E, Hendrich leg. (Loc. WA 6/170)" (CLH); 2 exs., "AUSTRALIA WA, Wyndham, Parry Creek Farm, 11.X.2011, attracted to light at night, J. & S. Nunn (NMPC); 8 exs., "AU Western Australia, E-Pilbara, Weeli Wolli Spr., NW of Newman, 555 m, 22°54.886'S, 119°12.661'E, 19.-22.xi.2011, Sv. Bílý leg." (NMPC); 1 ex., "AUSTRALIA, WEST AUSTRALIA, HALLS CREEK env., 18°11.48'S, 127°38.42'E, 26.i.2014, J. Horák leg." (NMPC); 1 ex., "WA, E-Pilbara, Weeli Wolli Springs, NW of Newman, 555 m, 22°54.886'S, 119°12.66'E, 2005, C.H.S. Watts leg.", DNA Balke 2654", [green printed label] (ZSM). Northern Territory: 3 exs., "Australia: NT, Anniversary Creek, 12 km S Adelaide River Scenic Route, 43 m, 22.VIII.2006, 13.19.252S, 131.08.271E, L. & E. Hendrich leg. (NT 7)", three specimens with: "DNA Balke 2173", "DNA Balke 2174", "DNA Balke 2175" [green printed labels] (ZSM); 1 ex., "Australia: NT, Nitmiluk NP, Edith Falls, Upper Pool, 123 m, 23.VIII.2006, 14.10.573S, 132.11.537E, L. & E. Hendrich leg. (NT 12)", "DNA Balke 2165" [green printed label] (ZSM); 1 ex., "Australia: NT, Kakadu Hwy, Bowerbird Creek, 5 km W Mary River Roadh., small puddle, 20 m, 24.VIII.2006, 13.38.142S, 132.10.345E, L. & E. Hendrich leg. (NT 15a)", "DNA Balke 1660" [green printed label] (ZSM); 1 ex., "Australia, N.T. Waterhole Ranges Owen Springs Reserve, 15.-17.IV.2011 LF; H = 600 m 24°00'33.6"S, 133°24'48.6"E leg. Michael Langer" (ZSM); 25 exs., "Australia, NT: Pungalina Homestead, 16°43'16"S, 137°24'55"E 26 Jun– 8Jul 2012 T.A.Weir, N.Gunter, S.Pinzon Navarro at light, open forest by crk" (ANIC); 3 exs., "NT, 80 km W Roper Bar, 14°54'19"S, 133°57'28"E, 78 m, at light, 14.V.2006, leg. Berger & Dostal (7/06)" (CGW); 2 exs., "NT, 40 km v. Port Roper, 14°54'04.8"S, 135°03'24.7"E, 134 m, at light, 14.V.2006, leg. Berger & Dostal" (CGW); 1 ex., "NT, Katherine [-14.46667, 132.2667], 7.2.1968, Watson, J.A.L." (ANIC); 1 ex., idem, “9.2.1968” (ANIC); 1 ex., "NT Tindal [-14.51667, 132.3667], 1.12.1967, Vestjens, W.J.M." (ANIC); 1 ex., "Northern Territory Auvergne, Victoria River Bank [-15.63333, 130.4833], 1968, Parker, F." (ANIC); 1 ex., "Northern Territory, Katherine [-14.46667, 132.2667], 6.2.1968, Matthews, E." (ANIC); 1 ex., "Northern Territory Magela Ck, nr. rum pipe [Mudginberri Homestead] [-12.7, 132.95], 7.1.1987, Dostine, P." (ANIC); 1 ex., "Northern Territory, Darwin Coastal, 200 m nth Magela Creek [-11.7, 132.8667], 29.7.1984, Dostine, P." (ANIC); 2 exs., "Australia: NT, Litchfield NP, TJAYNERA FALLS, 13°15'S, 130°44'E, 63 m, S. Jákl leg., 20 –27.XI.2008” (NMPC); 1 ex., "AUSTRALIA: NT, 40 km SW of KATHERINE, rd to Kununurra, 14°44'S, 132°01'E, 100 m, S. Jákl leg., 29.XI.2008" (NMPC); 1 ex., "AUSTRALIA: NT, 25 km S of KATHERINE, nr Cutta Cutta caves, 14°31'S, 132°25'E, 168 m, S. Jákl leg., 23. –31.XII.2008” (NMPC); 1 ex., "Australia: NT, Nitmiluk NP, Edit Falls, 14°10'S, 132°06'E, 37 m, S. Jákl leg., 3.XII.2008" (NMPC); 4 exs., "Australia: NT, 70 km SW of Mataranka, 15°19'S, 132°50'E, 190 m, S. Jákl leg., 22. –23.XII.2008” (NMPC); 5 exs., "AUSTR. NT, Douglas Hot Springs, 12.12.[20]08, 13°45'S, 131°26'E, 35 m, Sv. Bílý leg." (NMPC); 5 exs., "AUSTRALIA NT, 10 km S of Banka Banka, 18°52'S, 134°04'E, 316 m, 20.12.2008, Sv. Bílý leg." (NMPC); 1 ex., "AUSTRALIA: NT, BANKA BANKA env., Road to Tennant Creek, 14°53'S, 132°01'E, 316 m, S. Jákl leg., 12 –13.I.2009” (NMPC); 1 ex., "AUSTR. NT, 5.1.[20]09, McDonell NP, Serpent Gorge, S. Bílý leg. 715 m, 24°45'S, 132°59'E " (NMPC); 3 exs., "AUSTRALIA NT, Adelaide River township, 25-28 IX 2011, Attracted to light at night. J. Nunn" (NMPC). Queensland: 1 ex., "AUSTRALIA: Qld. 5 km W Mt. Molloy dugout Sept 29, 1990 D. Larson" (ZSM); 2 exs., "AUSTRALIA Qld. Rice field 8 km N Mareeba, Sept 20/90 D. Larson" (ZSM); 1 ex., "AUSTRALIA Qld, 30 km s Atherton stock pond Nov. 27/90 Larson (ZSM); 1 ex., "AUSTRALIA QLD. McLeod R nr base Windsor Tableland Nov. 12/90 Larson" (ZSM); 1 ex., "Mossman 11.viii.1975 R.A. Yule Acc 1150/17 to M.V.", "QDPC 0-172703" (QDPC); 14 exs., "QL, Greenvale, 150 km NW Charters Towers, 150 m, 19.I.1993, leg. G. Wewalka (12 –14)” (CGW); 3 exs., "QL, Marbeeba, 700 m, 22.I.1993, leg. G. Wewalka (19)" (CGW); 10 exs., "QL, Dalrymple, 30 km N Charters Towers, 30 m, 18.I.1993, leg. G. Wewalka (10, 11)" (CGW); 1 ex., "QL, Cape York, VI.1993, leg. Uhler" (CGW); 2 exs., "QL, Richmon, 2.VII.1918, F. M." (CGW); 1 ex., "QL, 35-47 km SWW Mt. Gamet, 31.I-4.II.2012 leg. S. Prebsl" (CGW); 1 ex., "Einasleigh Uplands Mary Creek [Queensland Tablelands (R), -16.55, 145.2], 4.12.1968, Britton, E.B. & Misko, S." (ANIC); 1 ex., "QLD, Einasleigh Uplands, 7 miles SW of Mt. Garnet [-17.73332977, 145.0500031], 20.4.1969, Common, I.F.B. & Upton, M.S." (ANIC); 1 ex., "Cassowary Coast (R) Cardstone [-17.76666667, 145.5833333], 9.3.1966 Hyde, K." (ANIC); 1 ex., "Queensland Cairns (R), Green Hills [Green Hill] [-17.05, 145.8], 19.12.1967, Brooks, J.G." (ANIC); 1 ex., "Townsville (C), Crystal Ck., 23 mi. SSE of Ingham [-18.96666908, 146.2666626], 9.12.1968, Misko, S. & Britton, E." (ANIC); 1 ex., "Burdekin (S), Ayr [-19.56667, 147.4], 4.10.1970, Muir, W.B." (ANIC); 1 ex., “Cairns” [-16.91667, 145.7667] (ANIC); 1 ex., "Russell River at Bellenden Ker Landing [-17.3, 145.9333], 24.10.1981 Earthwatch, Qld Museum" (ANIC); 1 ex., "Townsville [-19.26667023, 146.8166656] Taylor, F.H." (ANIC); 1 ex., "Qld 7 miles NNE of Ravenshoe [-17.5, 145.5], 23.4.1969, Common, I.F.B. & Upton, M.S." (ANIC); 1 ex., "Qld Mary Creek [Queensland Tablelands (R) Einasleigh Uplands -16.55, 145.2], 4.12.1968, Britton, E.B. & Misko, S." (ANIC); 1 ex., idem, “5.12.1969” (ANIC); 9 exs., "Queensland, [Sep. 1928-July 1929] K.K.Spence", “K.215166–K.215178” (AMS); 2 exs., "Australia: N QLD, 20 km NE Mareeba, Hodzic Road, 361 m, 12.IX.2006, 16.49.556S, 145.27.211E, L. & E. Hendrich leg. (QLD 28)" (CLH); 2 exs., "Australia: C QLD, 17 km S Calen, Mt. Charlton-Calen Road, creek, 94 m, 23.IX.2006, 21.00.201S, 148.42.546E, L. & E. Hendrich leg. (QLD 44)" (CLH); 6 exs., "Australia: C QLD, 10 km S Mizani, Lake Kinchant, seapage, 48 m, 24.IX.2006, 21.11.580S, 148.53.522E, L. & E. Hendrich leg. (QLD 46)" (ZSM); 2 exs., "Australia: S QLD, 40 km E Bundaberg, Tusky Creek, 9 m, 26.IX.2006, 24.39.139S, 152.01.477E, L. & E. Hendrich leg. (QLD 52)"; 4 exs., "Australia: C QLD, 19 km S Ayr, Bannister Lagoon at Bruce Hwy, swamp, 20 m, 21.IX.2006, 19.33.403S, 147.15.078E, L. & E. Hendrich leg. (QLD 43)" (CLH); 2 exs., "Australia: C QLD, 18 km S Calen, Mt. Charlton-Calen Road, Boulder Creek, 42 m, 23.IX.2006, 21.00.365S, 148.43.231E, L. & E. Hendrich leg. (QLD 45)" (CLH); 14 exs., "Australia, Queensland, Hann River N of Laura, 24. June 1976, J.F. Donaldson" (QDBIP); 1 ex., "Australia, Queensland, Iron Range Cape York Peninsula, 13.-20. May 1975, at light, K.J. Houston" (QDBIP); 1 ex., "Australia, Queensland, McIIwraith Range NE Coen Cape Yorke Pen., 29.VI.-5.VII.1976, J.F. Donaldson" (QDBIP); 1 ex., "Australia, Queensland, 23 km E of Mareeba, 29. January 1989, at light, R.I. Storey" (QDBIP); 1 ex., "Australia, Queensland, Musgrave, 10. Oct. 1982, at light, J.W. Turner" (QDBIP); 1 ex., "Australia, Queensland, Palmer River Crossing Cooktown road, 13.-20. May 1975, at light, K.L. Houston" (QDBIP); 1 ex., "N Queensland, 18.1.2000, Granite Gorge, Sv. Bílý leg." (NMPC); 17 exs., "N Queensland, 24.1.2000, Gregory Dawns, Sv. Bílý leg." (NMPC); 4 exs., "N Queensland, 28.1.2000, Porcupine Gorge, Sv. Bílý leg." (NMPC); 14 exs., "N Queensland, 29.1.-3.2.2000, The Lynd Junction, Sv. Bílý leg." (NMPC); 1 ex., "N Queensland, 5.2.2000, Ravenshoe, Sv. Bílý leg." (NMPC); 2 exs., "N Queensland, 7.2.2000, Mt. Carbine, Sv. Bílý leg." (NMPC); 17 exs., "N Queensland, 13.2.2000, Undara, Sv. Bílý leg." (NMPC); 5 exs., "Australia Qld, Mt Isa, Moondarra rd, 13 IX 2011, In gravel at edge of Leichaerdt R., J. Nunn" (NMPC). New South Wales: 1 ex., "NSW, Wakool", “K.363073” (AMS). South Australia: 1 ex., "SA Elliston Salt Lake 23/6 1974 Timm BV", “25-002059” (SAMA).

Description of male.

Body shape: In dorsal view, elongate oval, broadest at midlength of elytra, moderately convex. Body outline without discontinuity between pronotum and elytra. Head relatively broad, anterior margin of clypeus truncate. Pronotum broadest between posterior angles, lateral margins moderately curved. Base of elytra as broad as pronotal base; lateral margins of elytra moderately curved ( Fig. 8 View Figure 8 ).

Colouration: Body yellow to pale ferruginous, disc of pronotum and ventral side diffusely darker, elytral striae sharply outlined in black, appendages testaceous. Base of elytra with narrow yellowish marking ( Fig. 8 View Figure 8 ).

Dorsal surface sculpture: Whole surface shiny ( Fig. 8 View Figure 8 ). Head uniformly microreticulated, reticulation composed of moderately deeply impressed isodiametric meshes. Punctation composed of small punctures, smaller than meshes of reticulation; rows of coarse punctures present around inner margin of eyes and in small depression anterolaterally of eyes. Pronotum with lateral beading very thin and indistinct. Microreticulation and punctation similar to that of head; row of coarse setigerous punctures present along anterior margin, basal margin (except for basomedially), and laterally close to sides. Elytra with microreticulation similar to that of head and pronotum, but less impressed. On each elytron 11 sharply incised discal striae present, inner three striae only weakly impressed anteriorly.

Antennae and legs: Antenna with antennomeres long and slender. Protibia modified, slightly broadened anteriorly. Protarsomeres 1-3 distinctly broadened and mesotarsomeres less so, with adhesive discs on their ventral side; claws simple.

Ventral part: Finely microreticulated, with intermixed, sparsely distributed, very small punctures. Meshes isodiametric, except for metacoxae and abdominal ventrites 1-2 (longitudinal), abdominal ventrite 3 (diagonal anteriorly, transverse posteriorly), and abdominal ventrites 4-6 (transverse). Prosternum obtusely keeled medially. Prosternal process shortly lanceolate, apex obtuse; distinctly bordered laterally. Lateral parts of metaventrite tongue-shaped, slender. Metacoxal lines nearly complete, absent only close to metaventrite. Metacoxae and abdominal ventrites 1-3 with numerous longitudinal or oblique striae.

Male genitalia: Median lobe consisting of a few sclerites, well separated apically ( Fig. 17A, B, C View Figure 17 ). Shape of paramere narrowly triangular, with very dense, strong, long setae along dorsal margin ( Fig. 17D View Figure 17 ).

Female.

Similar to male in habitus. Protibia simple, not angled basally and only slightly broadened distally; pro- and mesotarsomeres not broadened, without adhesive setae.

Measurements.

TL = 5.5-5.8 mm; TL-H = 4.9-5.2 mm; MW = 2.5-2.6 mm.

Variability.

All specimens studied are rather uniform and vary only in body length.

Differential diagnosis.

Copelatus nigrolineatus is distinguished from all other Australian species by the absence of submarginal striae on the elytra, the pale dorsal surface and the form of the median lobe.

Distribution.

Endemic. The species is widely distributed in the northern half of Australia. Numerous records are from the Northern Territory, north-western Australia (Kimberley region and the Pilbara), and Queensland south to Brisbane ( Fig. 26 View Figure 26 ). The single records from South Australia ( “Elliston”, SAMA) and New South Wales ( “Wakool”, AMS) are in need of confirmation. Most probably those single specimens were drifted southwards by heavy thunderstorms, followed by flash floods.

Habitat.

This widely distributed species is the most common Copelatus in the Northern Territory and north-western Australia and was found in almost all habitat types. It occurs in both open country as well as forested areas. Most specimens were obtained from isolated flood-zone pools of seasonal rivers and pools adjacent to streams in Eucalypt or tropical woodland. The species tended to be found more in seepage areas or on mineral substrates than other the Australian Copelatus ( Larson 1993). Also, a few specimens were taken from slow flowing spring-fed streams ( Figs 34B View Figure 34 , 35A, B View Figure 35 ). Copelatus nigrolineatus is also attracted to light.

This species is the most common Australian species of the genus in Australian entomological collections.