Kangaraneus farhani, Castanheira & Framenau, 2023
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publication ID |
https://dx.doi.org/10.3897/zse.99.101417 |
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publication LSID |
lsid:zoobank.org:pub:F1A740F4-6BC2-44B4-9F9F-3222C428B23C |
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persistent identifier |
https://treatment.plazi.org/id/CD0DBA93-E176-468F-B6C0-238ED30A6FF0 |
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taxon LSID |
lsid:zoobank.org:act:CD0DBA93-E176-468F-B6C0-238ED30A6FF0 |
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treatment provided by |
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scientific name |
Kangaraneus farhani |
| status |
sp. nov. |
Kangaraneus farhani sp. nov.
Figs 9A-E View Figure 9 , 10A-D View Figure 10 , 11A-F View Figure 11 , 12 View Figure 12
Type-material.
Holotype male, Frankston (38°09'S, 145°08'E, Victoria, Australia), 25 September 1947 (MV K-9854).
Other material examined.
AUSTRALIA - Australian Capital Territory • 2 females, Corin Dam , 35 km W Canberra, 35°34'S, 148°50'E (AM KS.33511) GoogleMaps . New South Wales • 1 female, Barrington Tops , 32°01'S, 151°29'E (MV K-9814) GoogleMaps ; • 2 males, Jamberoo Mountain , 34°40'S, 150°43'E (AM KS.54090, KS.56902) GoogleMaps ; • 2 females, same locality (AM KS.54096, KS.56898) GoogleMaps ; • 1 female, Jenolan Caves , 33°49'S, 150°01'E (AM KS.32648) GoogleMaps ; • 2 females, New England National Park , 30°29'S, 152°30'E (QM) GoogleMaps ; • 1 female, Newnes State Forest, Sunnyside Road, 1.6 km from Blackfellows Hand Road , 33°22'S, 150°11'E (AM KS.93211) GoogleMaps . South Australia • 1 female, Mylor , 35°03'S, 138°46'E (SAM) GoogleMaps ; • 1 female, Ravine des Casoars, Kangaroo Island , 35°48'S, 136°45'E (SAM) GoogleMaps . Tasmania • 1 female, King Island , 39°53'S, 143°54'E (MV K-9468) GoogleMaps ; • 3 females, Launceston , 41°27'S, 147°10'E (AM KS.28590) GoogleMaps ; • 1 female, same locality (AM KS.28697) GoogleMaps ; • 1 male, 2 females, same locality (AM KS.28545) GoogleMaps ; • 1 female, same locality (AM KS.131278) GoogleMaps ; • 1 female, Lees Paddocks , 41°50'S, 146°06'E (QVMAG 13:0529) GoogleMaps ; • 2 females, Lilydale , 41°15'S, 147°13'E (AM KS.8524) GoogleMaps ; • 1 female, Maggs Mountain , 41°44'S, 146°10'E (QVMAG 13:0634) GoogleMaps ; • 1 female, Picton area , 43°09'S, 146°38'E (MV K-10379) GoogleMaps ; • 1 male, Ringarooma River, Gladstone , 40°57'S 148°01'E (QM S90595 View Materials ) GoogleMaps ; • 1 female, Risdon , 42°49'S, 147°19'E (AM KS.28839) GoogleMaps ; • 1 female, 2 juveniles, Southport , 43°25'S, 146°58'E (AM KS.28870) GoogleMaps ; • 1 female, Stanley, 1 Ford St , 40°46'S, 145°17'E (QVMAG 13:0582) GoogleMaps ; • 1 female, same locality (QVMAG 13:0584) GoogleMaps ; • 1 female, Strahan , 42°09'S, 145°19'E (AM KS.34086) GoogleMaps . Victoria • 1 female, no exact locality (MV K-10377) ; • 1 female, Camberwell , 37°50'S, 145°4'E (MV K-10375) GoogleMaps ; • 2 females, Frankston , 38°09'S, 145°08'E (MV K-10378) GoogleMaps ; • 1 female, Macclesfield , 37°53'S, 145°29'E (MV K-10376) GoogleMaps ; • 3 females, Narracan , 38°15'S, 146°13'E (MV K-10374) GoogleMaps .
Etymology.
The specific name is a patronymic in honour of Farhan Bokhari, a colleague at the Harry Butler Institute (Murdoch University).
Diagnosis.
Male K. farhani sp. nov. can be distinguished from the other two species of the genus by the central protrusion of the median apophysis being much longer, somewhat blade-like and heavily sclerotised (Figs 9C, D View Figure 9 , 10A, B View Figure 10 ). Females can be differentiated from the other two Kangaraneus gen. nov. species by the truncated tip of the epigyne scape (tapering in the other two species) (Fig. 11D-F View Figure 11 ). Kangaraneus farhani sp. nov. is the only species in which females were found with a broken off scape exposing a distinct, shallowly V-shaped posterior edge of the atrium (Fig. 10C View Figure 10 ).
Description.
Male (based on holotype MV K-9854). Total length 5.8. Carapace 3.6 long, 3.1 wide, light brown, slightly lighter in cephalic area (Fig. 9A View Figure 9 ). Eye diameter AME 0.23, ALE 0.18, PME 0.18, PLE 0.16; row of eyes: AME 0.64, PME 0.43, PLE 1.17. Chelicerae light brown, basally mottled dark; with three promarginal teeth (median largest) and two retromarginal teeth of similar size. Legs light brown, patched in beige on the base of femur (Fig. 9A, B View Figure 9 ). Leg length of segments (femur + patella + tibia + metatarsus + tarsus = total length): I - 3.9 + 1.3 + 2.6 + 2.9 + 1.2 = 11.9, II - 3.7 + 1.3 + 3.2 + 2.2 + 1.0 = 11.4, III - 2.2 + 0.8 + 1.6 + 1.0 + 0.5 = 6.1, IV - 3.2 + 0.7 + 1.8 + 2.0 + 1.0 = 8.7. Labium 0.39 long, 0.52 wide, light brown; maxillae light brown (Fig. 9B View Figure 9 ). Sternum 1.6 long, 1.2 wide, light brown with black contour (Fig. 9B View Figure 9 ). Abdomen 3.1 long, 3.1 wide, with conspicuous humeral humps; dorsum olive-grey, with short, pale longitudinal patch anteriorly and a dark, heart-shaped patch posteriorly, demarcated by a pale line (Fig. 9A View Figure 9 ); venter olive-brown with irregular light streaks (Fig. 9B View Figure 9 ). Pedipalp (Figs 9C-E View Figure 9 , 10A-D View Figure 10 ) length of segments (femur + patella + tibia + cymbium = total length): 0.7+ 0.4 + 0.6 + 1.3 = 3.0; paracymbium strong and hook-like, curved apically; median apophysis C-shaped, tapering to an acute tip, central protrusion elongate, heavily sclerotised; radix canoe-shaped; terminal apophysis elongate, lanceolate, tapering to an acute tip; basal conductor lobe conspicuous, heavily sclerotised; conductor triangular, bearing a membranous apical protuberance and a short basal protrusion with a bifid tip; embolus heavily sclerotised with its tip curved apically.
Female (based on AM KS.54096): Total length 10.4. Carapace 3.7 long, 3.6 wide; colouration as in male (Fig. 11A View Figure 11 ). Eye diameter AME 0.13, ALE 0.11, PME 0.12, PLE 0.10; row of eyes: AME 0.51, PME 0.43, PLE 1.28. Chelicerae brown, four promarginal teeth (apical and third largest) and three retromarginal teeth of similar size. Legs light brown with covered in setae (Fig. 11A, B View Figure 11 ). Pedipalp length of segments (femur + patella + tibia + tarsus = total length): 1.3 + 0.5 + 0.8 + 1.7 = 4.3. Leg length of segments (femur + patella + tibia + metatarsus + tarsus = total length): I - 4.4 + 2.0 + 3.8 + 3.0 + 1.7 = 14.9, II - 3.9 + 1.8 + 3.3 + 2.6 + 1.4 = 13.0, III - 2.5 + 1.1 + 1.6 + 1.5 + 1.0 = 7.7, IV - 3.8 + 1.3 + 2.2 + 2.3 + 1.2 = 10.8. Labium 0.56 long, 0.89 wide, light brown; maxillae light brown (Fig. 11B View Figure 11 ). Sternum 2.0 long, 1.8 wide, colouration as in male (Fig. 11B View Figure 11 ). Abdomen 7.9 long, 6.7 wide; dorsum with two conspicuous humeral humps, golden brown with brown band between humeral humps (Fig. 11A View Figure 11 ); venter olive-grey with indistinct pale lateral bands (Fig. 11B View Figure 11 ). Epigyne base rounded, wider than long, with large and elevated borders including a V-shaped posterior rim (Fig. 11C, D View Figure 11 ); atrium convex (Fig. 11C, E, F View Figure 11 ); central division wide (Fig. 11F View Figure 11 ); scape slightly longer than wide, longer than the epigyne base, with rounded bulged base, apically truncated (Fig. 11D, E View Figure 11 ); spermathecae oval, located basally on the genital plate, copulatory ducts short (Fig. 4E, F View Figure 4 ).
Variation.
Males total length 5.6-5.8 (n = 2); females total length 6.3-10.4 (n = 8). Males display similar colour variations to K. arenaceus comb. nov. with one specimen having a large white patch in the cardiac area. Females do not display much colour variation, but half had the epigyne scape broken off.
Life history and habitat preferences.
Mature specimens of K. farhani sp. nov. were collected between July and early December, except for one female collected in February. The species therefore seems to be largely winter- to spring mature.
Kangaraneus farhani sp. nov. generally appears to build its web low in grass, with original labels reading "among grass in garden", “garden”, "orb-web near ground", "in grass at side of creek".
Distribution.
Kangaraneus farhani sp. nov. occurs in south-eastern mainland Australia (Australian Capital Territory, New South Wales, South Australia, Victoria) and Tasmania (Fig. 12 View Figure 12 ).
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.