Artoriopsis lacustris, Framenau & Douglas, 2021

Framenau, Volker W. & Douglas, John, 2021, New Eastern Australian Species in the Wolf Spider Genus Artoriopsis (Araneae, Lycosidae, Artoriinae), Records of the Australian Museum (Rec. Aust. Mus.) 73 (3), pp. 103-114 : 106-108

Artoriopsis lacustris sp. nov.

urn:lsid:zoobank.org:act:C7F41599-D2C7-4028-BAAB-F2CFBD90678F

Fig. 3A–D

Holotype. Male , Myall Lakes National Park (32°29'22"S 152°23'53"E, New South Wales, AUSTRALIA), 1 June 1997, L. Wilkie, pitfall trap (AM KS.62075).

Other material examined. Only known from male holotype.

Diagnosis. Artoriopsis lacustris sp. nov. is most similar to A. melissae Framenau, 2007 , however, the male genital morphology is distinctly different, specifically the tegular apophysis, which is straight with a ventral edge in A. melissae but sinuous in A. lacustris sp. nov. Details of the apical part of the bulb are also greatly different, i.e. the embolus is much stronger in the new species and the terminal apophysis much more heavily sclerotised. The female of A. lacustris sp. nov. is not known.

Description. Male (based on holotype, AM KS.62075).

Prosoma, dorsal shield ( Fig. 3A). Dorsal profile in lateral view straight; brown, with distinct light median and lateral bands; median band broadening anteriorly with light constriction anterior of fovea, dense white setae in median and lateral bands, less dense otherwise; two bristles below AE.

Eyes. Row of AE procurved, narrower than row of PME.

Sternum ( Fig. 3B). Yellow-brown, with olive-brown pigmentation, shiny; brown bristles that are longer and denser towards margins.

Labium. Dark brown, shiny; front end truncated and white.

Chelicerae. Brown, with black macrosetae; three promarginal teeth, the median largest; three retromarginal teeth of almost equal size.

Legs. Leg formula IV>I>II>III; brown to yellow-brown with front legs darker, with dark annulations, particularly on femora.

Pedipalp ( Fig. 3C,D). Tegular apophysis broadening apically ( Fig. 3C); embolus strong, terminal apophysis heavily sclerotized and tip pointing distad ( Fig. 3C).

Opisthosoma ( Fig. 3A,B). Poorly preserved but apparently with typical Artoriopsis -pattern, i.e., black diamond-shaped mark centrally that is cut through by light lanceolate cardiac mark; posteriorly with rectangular light patch. Venter olive-brown. Spinnerets brown.

Measurements. TL 4.9, PL 2.6, PW 1.6. Eyes: AME 0.07, ALE 0.09, PME 0.25, PLE 0.20. Row of eyes: AE 0.41, PME 0.63, PLE 0.74. Sternum (length/width) 1.11/0.91. Labium (length/width) 0.36/0.27. OL 2.3, OW 1.3. Legs: Lengths of segments (femur + patella + tibia + metatarsus + tarsus = total length): Pedipalp 0.75 + 0.30 + 0.25 + — + 0.70 = 2.00, I 1.75 + 0.75 + 1.30 + 1.35 + 0.95 = 6.10, II 1.60 + 0.65 + 1.10 + 0.90 + 0.90 = 5.15, III 1.65 + 0.55 + 0.90 + 0.75 + 0.65 = 4.5, IV 2.00 + 0.80 + 1.70 + 1.85 + 0.90 = 7.25.

Female unknown.

Etymology. The specific epithet is a Latin noun in genitive case ( lacustris —of a lake), and refers to the type locality of the species, Myall Lakes National Park.

Natural history and habitat preferences. The only information available is that on the label of the holotype. The male was found in June suggesting winter-maturity.

Distribution. Only known from the type locality, Myall Lakes National Park (New South Wales) ( Fig. 2).