Tasmanicosa subrufa ( Karsch, 1878 )

Framenau, Volker W. & Baehr, Barbara C., 2016, Revision of the Australian Union-Jack wolf spiders, genus Tasmanicosa (Araneae, Lycosidae, Lycosinae), Zootaxa 4213 (1), pp. 1-82: 48-49

publication ID

http://doi.org/10.11646/zootaxa.4213.1.1

publication LSID

lsid:zoobank.org:pub:9C76B987-3897-4666-87EF-62EB5BF5CF04

DOI

http://doi.org/10.5281/zenodo.5676951

persistent identifier

http://treatment.plazi.org/id/0B32B23C-7B36-9F4C-BEF8-3E99FDA5FE37

treatment provided by

Plazi

scientific name

Tasmanicosa subrufa ( Karsch, 1878 )
status

comb. nov.

Tasmanicosa subrufa ( Karsch, 1878)   comb. nov.

Tasmanian Union-Jack wolf spider

( Figs 3S View FIGURE 3 , 4K View FIGURE 4 , 27A–K View FIGURE 27 , 28 View FIGURE 28 )

Lycosa subrufa Karsch 1878: 813   –814; McKay 1985: 83; Moritz 1992: 327. Lycorma subrufa (Karsch)   .— Roewer 1955: 266; McKay 1973: 380.

Type data. Syntypes. 2 females (one without opisthosoma), Vandiemensland (= Tasmania, AUSTRALIA), Schayer ( ZMB 1962 View Materials ) (examined).  

Other material examined. 27 males, 63 females (three with eggsac and two with spiderlings) and 14 juveniles in 75 records (see Appendix B).

Diagnosis. Males and females of T. subrufa   resemble T. ramosa   and T. semicincta   in having a tegular apophysis with an extremely long ventral process and corresponding long epigyne, but can easily be distinguished from these species by colouration. Whereas the venter of T. subrufa   is entirely black, it has a limited triangular black patch in T. ramosa   (which also has a very distinctive dorsal opisthosoma pattern of transverse white lines) and is limited to a black transverse band behind the epigastric furrow in T. semicincta   .

Description.Male (based on QM S66654 View Materials ).

Total length 15.8.

Prosoma. Length 9.3, width 7.2; carapace dark brown with genus-specific Union-Jack pattern and distinct narrow median and marginal light bands ( Fig. 27A View FIGURE 27 ); sternum dark brown ( Fig. 27C View FIGURE 27 ).

Eyes. Diameter of AME 0.34, ALE 0.39, PME 0.76, PLE 0.68.

Chelicerae. Dark brown with an elongated patch of golden setae frontally.

Labium. Glabrous dark brown with light brown anterior rim ( Fig. 27C View FIGURE 27 ).

Endites. Glabrous dark brown ( Fig. 27C View FIGURE 27 ).

Legs. Uniformly light brown, covered with silvery setae; coxae dark brown ( Fig. 27C View FIGURE 27 ).

Opisthosoma. Length 9.0, width 5.3; dorsally with folium pattern anteriorly and thin, transverse light wavy lines posteriorly ( Fig. 27A View FIGURE 27 ); venter very dark brown to black ( Fig. 27C View FIGURE 27 ).

Pedipalps. Cymbium dorsally covered with a dense layer of silvery setae; tip with 3–5 macrosetae ( Figs 27E– F View FIGURE 27 ); ridge of tegular apophysis exceeding tegular apophysis width, ventral process very long ( Figs 27J–K View FIGURE 27 ); embolus thin; terminal apophysis broad, flat with slightly notched tip ( Fig. 27I View FIGURE 27 ).

Female (based on QM S66654).

Total length 19.7.

Prosoma. Length 11.1, width 8.3; carapace and sternum colouration as male ( Figs 27B, D View FIGURE 27 ).

Eyes. Diameter of AME 0.35, ALE 0.38, PME 0.83, PLE 0.70.

Chelicerae, labium, endites, legs and opisthosoma. Opisthosoma length 9.5, width 6.5; otherwise as male, but chelicerae without frontal patch of golden setae ( Figs 27B, D View FIGURE 27 ).

Epigyne. Approximately two and a half times longer than wide, median septum inverted T-shaped, medially widened and gently curved anteriorly and generally asymmetrical ( Fig. 27G View FIGURE 27 ); spermathecal heads small, situated approximately at one third distance from epigyne base; spermathecal stalks slightly S-shaped ( Fig. 27H View FIGURE 27 ).

Remarks. The syntypes of T. subrufa   were initially dry-pinned and subsequently transferred into 70% ethanol. The colour pattern is not well preserved and therefore the species is redescribed from representative fresh specimens.

Life history and habitat preferences. The few records of T. subrufa   with some description of their habitat are not very conclusive in relation to habitat preferences for the species. They include sand hill on paddock, sandy ground, sphagnum moss, tussock grassland, wet sclerophyll forest and east-facing slope. Mature males of T. subrufa   have been found from November to March with a peak in December and mature females mainly from November to May, with few records from August and September. Females with eggsac were found in December and March and those with spiderlings in February.

Distribution. Tasmanicosa subrufa   has mainly been recorded from Tasmania, but there are isolated records on the Australian mainland coast from Tuross (New South Wales), Port Lincoln and Kangaroo Hill (South Australia) and Warrnambool (Victoria) ( Fig. 28 View FIGURE 28 ).

ZMB

Museum f�r Naturkunde Berlin (Zoological Collections)

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Lycosidae

Genus

Tasmanicosa

Loc

Tasmanicosa subrufa ( Karsch, 1878 )

Framenau, Volker W. & Baehr, Barbara C. 2016
2016
Loc

Lycosa subrufa

Moritz 1992: 327
McKay 1985: 83
McKay 1973: 380
Roewer 1955: 266
Karsch 1878: 813
1878