Artoria atrata, Do Prado & Baptista & Framenau, 2024
publication ID |
https://doi.org/ 10.11646/zootaxa.5547.1.1 |
publication LSID |
lsid:zoobank.org:pub:2089C3EC-8FBB-43E6-A6C5-9E6B6AD512D6 |
persistent identifier |
https://treatment.plazi.org/id/5B248979-0D34-B770-8ED3-FDFCFF7EFBCC |
treatment provided by |
Plazi |
scientific name |
Artoria atrata |
status |
sp. nov. |
Artoria atrata sp. nov.
Figs 4 View FIGURE 4 , 5–6 View FIGURE 5 View FIGURE 6
urn:lsid:zoobank.org:act:5BCDC845-FF2C-43D4-9B68-2AFDE99964B7
Type material. Holotype male, Kingsley , Legana Ave, Western Australia, AUSTRALIA, 31°49’S, 115°48’E, 23 October 1994, A. F. Longbottom, S.1698 ( WAM T68708 About WAM ). GoogleMaps
Other material examined. AUSTRALIA: Western Australia (89 males, 48 females, 3 females with egg sac, 86 juv. in 67 records) : 1 female, Attadale, 32º01’S, 115º48’E ( WAM T58424 About WAM ) GoogleMaps ; 3 males, 14 juv., same locality ( WAM T58425 About WAM ) GoogleMaps ; 1 female, same locality ( WAM T55140 About WAM ) GoogleMaps ; 1 male, 1 females, 6 juv., same locality ( WAM T55457 About WAM ) GoogleMaps ; 1 female, same locality ( WAM T162515 About WAM ) GoogleMaps ; 1 male, 11 juv., same locality ( WAM T55454 About WAM ) GoogleMaps ; 1 male, Bannister Creek , 32º02’S, 115º54’E ( WAM T53828 About WAM ) GoogleMaps ; 4 males, 5 juv., Bibra Lake , 32º05’S, 115º49’E ( WAM T55442 About WAM ) GoogleMaps ; 4 males, 1 female, 1 juv., Boyup Brook, 33º50’S, 116º23’E ( WAM T55446 About WAM ) GoogleMaps ; 1 female, 13 juv., Brentwood, 32º02’S, 115º51’E ( WAM T55441 About WAM ) GoogleMaps ; 2 males, 1 female, 1 juv., Brentwood Swamp, High Road, edge of swamp, 32º02’S, 115º51’E ( WAM 71 About WAM /170–173) GoogleMaps ; 1 male, 15 km SW of Bridgetown, Mockerdillup Road , 34º04’S, 116º06’E ( WAM T98 About WAM /2165) GoogleMaps ; 9 males, 1 female, Bull Creek , 32º03’S, 115º51’E ( WAM T55462 About WAM ) GoogleMaps ; 11 males, 3 females, same locality ( WAM T55461 About WAM ) GoogleMaps ; 2 males, Bunbury Highway, 51 mi peg (no exact locality) ( WAM T55449 About WAM ) ; 1 male, 1 female, Chilimony Road North, SW of Binnu , 28º05’58’’S, 114º33’43’’E ( WAM T68471 About WAM ) GoogleMaps ; 1 female, same locality ( WAM T68368 About WAM ) GoogleMaps ; 3 males, 8 juv., 18 mi E of Collie , 33º21’S, 116º28’E ( WAM T55445 About WAM ) GoogleMaps ; 3 males, 20 mi E of Collie , 33º21’S, 116º30’E ( WAM T55444 About WAM ) GoogleMaps ; 3 males, 36 mi E of Collie , 33º21’S, 116º55’E ( WAM T55447 About WAM ) GoogleMaps ; 2 males, 1 juv., Coolinup Nature Reserve North, 33º34’02’’S, 122º17’55’’E ( WAM T68420 About WAM ) GoogleMaps ; 1 female, Coolinup Nature Reserve South, Esperance, 33º43’53’’S, 122º17’59’’E ( WAM T68369 About WAM ) GoogleMaps ; 1 male, Crowea, 34º28’S, 116º10’E ( WAM T68709 About WAM ) GoogleMaps ; 1 female, same locality ( WAM T42132 About WAM ) GoogleMaps ; 1 male, same locality ( WAM T98 About WAM /2149) GoogleMaps ; 1 male, same locality ( WAM T98 About WAM /2148) GoogleMaps ; 1 male, Darlington, 31º54’S, 116º04’E ( WAM T55322 About WAM ) GoogleMaps ; 1 male, same locality ( WAM T55327 About WAM ) GoogleMaps ; 1 female, Deep River , 35º00’S, 116º42’E ( WAM T68699 About WAM ) GoogleMaps ; 1 female, Duke of Orleans Bay , 33º55’S, 122º35’E ( WAM T99209 About WAM ) GoogleMaps ; 1 male, Dwellingup, 32º43’S, 116º04’E ( WAM 98 About WAM /2153) GoogleMaps ; 1 female, Esperance, Manjimup Road, Lot 240, 33º52’S, 121º53’E ( WAM T99218 About WAM ) GoogleMaps ; 1 male, Gelorup, Gelorup Rise, Lot 101, 33º23’12”S, 115º39’43”E ( WAM T98 About WAM /2156) GoogleMaps ; 1 male, same locality ( WAM T70391 About WAM ) GoogleMaps ; 1 male, same locality ( WAM T99219 About WAM ) GoogleMaps ; 1 male, 1 female, same locality ( WAM T70389 About WAM ) GoogleMaps ; 1 male, same locality ( WAM T58426 About WAM ) GoogleMaps ; 1 male, 1 juv., Kojonup Brook, 16 mi W of Kojonup, 33º50’S, 117º9’E ( WAM T55246 About WAM ) GoogleMaps ; 1 female, Lake Grassmere at Elleker, 35º00’S, 117º43’E ( WAM 71 About WAM /457) GoogleMaps ; 1 male, 2 juv., Lake Poorrarecup , 34º25’S, 117º14’E ( WAM T68703 About WAM ) GoogleMaps ; 1 male, Darkin Swamp, Warrigal Road, 32º05’S, 116º38’E ( WAM T69991 About WAM ) GoogleMaps ; 1 female, Melville, 32º02’S, 115º48’E ( WAM T55440 About WAM ) GoogleMaps ; 1 female, Moore River National Park , 31º07’S, 115º38’E ( WAM T51545 About WAM ) GoogleMaps ; 3 males, Mt Barker , Porongurup Road, 0.4 km E of Watermans Road, 34º38’46’’S, 117º46’55’’E ( WAM 98 About WAM /85–87) GoogleMaps ; 1 male, Mt Clarence , Albany, 35º01’S, 117º54’E ( SAM NN13534 View Materials ) GoogleMaps ; 1 female, Mt Hawthorn , Anzac Road, 31º56’S, 115º50’E ( WAM T58345 About WAM ) GoogleMaps ; 1 female, Murdoch Swamp, edge of swamp, 32º04’S, 115º49’E ( WAM T70866 About WAM ) GoogleMaps ; 1 male, 1 juv., Perth Airport, 31º58’34’’S, 115º56’25’’E ( WAM T68681 About WAM ) GoogleMaps ; 1 male, Perth, Beaufort Street Bridge, 31º57’S, 115º51’E ( WAM T44398 About WAM ) GoogleMaps ; 2 females, Picton, S of crematorium near corner of Brittain & Richter Roads, 33º21’S, 115º40’E ( WAM T80643 About WAM ) GoogleMaps ; 1 female, 2 juv., Siesta Park Swamp, 33º39’S, 115º13’E ( WAM T64998 About WAM ) GoogleMaps ; 1 male, 1 juv., The Spectacles, 32º15’S, 115º50’E ( WAM 98 About WAM /2186–7) GoogleMaps ; 1 female, University of Western Australia, Nedlands, 31º58’S, 115º48’E ( WAM 71 About WAM /461) GoogleMaps ; 2 females, Walpole, 1 mi E of junction of Frankland and Bridge Roads, 34º54’37’’S, 116º44’31’’E ( WAM T68700 About WAM ) GoogleMaps ; 1 male, 1 female, 1 juv., Wanneroo, 31º44’S, 115º48’E ( WAM T68705 About WAM ) GoogleMaps ; 1 female, same locality ( WAM 7731 About WAM ) GoogleMaps ; 1 male, same locality ( WAM 7732 About WAM ) GoogleMaps ; 1 female, same locality ( WAM 7733 About WAM ) GoogleMaps ; 1 female, Wanneroo Lake , 31º44’S, 115º48’E ( WAM 71 About WAM /749) GoogleMaps ; 1 female, same locality ( WAM 71 About WAM /748) GoogleMaps ; 11 males, 13 females, 16 juv., Wanneroo,A. Pierce property, 31º44’S, 115º48’E ( WAM T99129 About WAM ) GoogleMaps ; 1 female, Wanneroo, Badgerup Road swamps, 31º44’S, 115º48’E ( WAM 71 About WAM /518) GoogleMaps ; 1 male, Waroona Dam, 32º51’11’’S, 116º00’18’’E ( WAM T100143 About WAM ) GoogleMaps ; 1 female, West Cape Howe Nat. Pk, NW. edge of Lake William , 35º05’04’’S, 117º36’23’’E ( WAM T142661 About WAM ) GoogleMaps ; 1 female, same locality ( WAM T142662 About WAM ) GoogleMaps ; 1 male, same locality ( WAM T142664 About WAM ) GoogleMaps .
Etymology. The specific epithet “ atrata ” is a Latin adjective meaning ‘dressed in black’, referring to the dark colour of this species, especially the males.
Diagnosis. Males of A. atrata sp. nov. are distinguishable by their colour, with a very dark carapace and the first two pairs of legs contrasting with the other, yellowish-brown pairs of legs. Their pedipalps resemble those of A. howquaensis Framenau, 2002 , a species that has not been reported from Western Australia, by their spoon-shaped tegular apophysis and only slightly sclerotized basoembolic apophysis ( Fig. 5C–E View FIGURE 5 ). Males of A. atrata sp. nov. differ from those of A. howquaensis by the trilobed vs a bilobed tegular apophysis ( Fig. 5C View FIGURE 5 vs Framenau & Baehr 2018, fig. 25E). Females of A. atrata sp. nov. also resemble A. howquaensis by the general shape of the epigyne. In A. atrata sp. nov. the epigyne is mostly formed by a sclerotized plate in which the lateral lobes merge, with the median septum placed at the posterior fourth of the epigyne and surpassing the lateral lobes ( Fig. 6D, E View FIGURE 6 ), while in A. howquaensis the epigyne is poorly sclerotized, with lateral lobes not very well-delimited mesally from the median septum and surpassing them posteriorly ( Framenau & Baehr 2018; fig. 25G).
Description. Male (holotype, WAM T68708).
Total length, 5.35. Carapace, length 3.19, width 2.39, dark brown, with paler median longitudinal band on its posterior half ( Fig. 5A View FIGURE 5 ). Sternum, dark brown ( Fig. 5B View FIGURE 5 ). Eyes, diameter of AME: 0.13; ALE: 0.09; PME: 0.28; PLE:
0.22, anterior eye row slightly procurved, distance between AME–AME around twice AME–ALE. Chelicerae, evenly dark brown, three retromarginal teeth, median largest; two promarginal teeth, apical largest. Labium, dark brown, with pale anterior rim ( Fig. 5B View FIGURE 5 ). Legs, background colour yellowish brown, with femur to metatarsus I mostly dark brown, as well as patella and tibia II; femur II with more sparse dark brown stains ( Fig. 5A, B View FIGURE 5 ). Opisthosoma, length 2.17, width 1.64. Dorsum mostly dark grey except for the pale cardiac mark almost reaching the posterior margin of the opisthosoma ( Fig. 5A View FIGURE 5 ). Venter mostly dark grey with rows of orange-brown spots laterally; spinnerets orange-brown ( Fig. 5B View FIGURE 5 ).
Pedipalp ( Fig. 5C–E View FIGURE 5 ), tibia rectangular in ventral view, free tip of the cymbium (from the anterior margin of the atrium to the apex) almost half as long as the whole cymbium, with few macrosetae; subtegulum heavily sclerotized and small in ventral view. Tegular apophysis spoon-shaped, with a stalk that narrows medially, broadening distally in a wide, trilobed concave surface. Basoembolic apophysis wider than long, poorly sclerotized with a small and rounded tip. Embolus comma-like, narrow, and filiform. Terminal apophysis sclerotized, very broad, much wider than the embolus, with its basal portion bearing a curved concavity as a gutter, and distal portion with an acute projection pointing retrolaterally.
Female (WAM T7731).
Total length, 4.77. Carapace, length 2.77, width 1.99. Carapace and sternum colouration like male, but slightly paler ( Fig. 6A, B View FIGURE 6 ). Eyes, diameter of AME 0.14, ALE 0.10, PME 0.30, PLE 0.23, anterior eye row like male. Chelicerae, evenly brown, three retromarginal teeth, median largest; one large promarginal tooth. Labium, like male ( Fig. 6B View FIGURE 6 ). Legs, background colour orange-brown with spaced dark grey stains throughout ( Fig. 6A, B View FIGURE 6 ). Opisthosoma, length 2.18, width 1.74. Dorsum evenly dark grey, without a demarcated cardiac mark, venter mostly pale yellow with white setae, spinnerets pale yellow ( Fig. 6A, B View FIGURE 6 ).
Epigyne, longer than wide, atrium very small, placed in the posterior fourth of the epigyne. Median septum small, with only its posterior two-lobed margin visible ( Fig. 6C View FIGURE 6 ). Spermathecal heads piriform, about one diameter apart and with a pair of rounded vulval chambers in between, spermathecal stalks about twice as long as spermathecal diameter, attached ectally, abruptly bent mesally, and then ventrally, reaching the copulatory openings in the posterior half of the epigyne ( Fig. 6D View FIGURE 6 ).
Variation. Body length: Males (n=5): 3.92–5.62; Females (n=5): 4.13–5.98.
Life history and habitat preferences. Most mature specimens were collected during late spring and summer. The species appears to largely prefer moist, riparian environments, as habitat descriptions on collection labels included ‘stony gravel near riverbed, damp’, ‘rivers edge’, ‘lake’s edge’, ‘grassy swamp flat’, ‘lake foreshore’. However, it has also been found in ‘open (cleared) forest with regrowth’ and in synanthropic habitats (‘swimming pool’, ‘pavement’, ‘on fly wire door’, and ‘kitchen floor’).
Distribution. South-western Western Australia, as far north as Kalbarri and as far east as about Esperance ( Fig. 4 View FIGURE 4 ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.