Oztira kroombit, Milledge, 2011

Milledge, G. A., 2011, A Revision of Storenosoma Hogg and Description of a New Genus, Oztira (Araneae: Amaurobiidae), Records of the Australian Museum 63 (1), pp. 1-32 : 11

Oztira kroombit n.sp.

Figs 1b , 6c,g–h , 11a–e , 26

Type material. HOLOTYPE ♂, Kroombit Tops (Beauty Spot 98), 45 km SSW of Calliope, [24°22'S 150°59'E], Queensland, 9–19 Dec 1983, V.E. Davies & J. Gallon, pitfall, rainforest ( S 30777 ) ( QM) . PARATYPES: 2♀, same data as holotype except (Three Moon Ck) ( S 30775 ). ( QM) .

Other material examined. QUEENSLAND: 1♂, Kroombit Tops , SSW of Calliope, Beauty Spot 98, 24°22'S 150°59'E, 29 Sep 1985, GBM, 860 m, litter, rainforest ( S 46475 ) . 1♀, Kroombit Tops , 45 km SSW of Calliope, 24°24'S 151°01'E, 10 Sep 1983, GBM et al., 890 m, litter, rainforest ( S 30778 ) . 2♀, Kroombit Tops , SSW of Calliope, Three Moon Scrub, 24°25'S 151°03'E, 30 Sep 1985, GBM, 940 m, litter, rainforest ( S 30752 ) (all QM).

Diagnosis. Can be separated from Oz. affinis by the tarsal rod being elongate with keyhole shaped opening ( Fig. 6c,g–h ), by the male palpal trochanter having a single stridulatory spine and by the female epigynum having lateral teeth ( Fig. 11d ); from Oz. kroombit and Oz. summa by the form of the male MA and RTA ( Fig. 11a–b ), by the cymbium having basal apophyses ( Fig. 11c ) and by the gonopore openings on the female epigynum being well separated ( Fig. 11d–e ).

Description. Male. Measurements: BL 3.40, CL 1.80, CW 1.28, PLE 0.25, PME 0.15, (QM, S 30777 ). Female. Measurements: BL 3.84, CL 1.86, CW 1.30, PLE 0.26, PME 0.18, (QM S 30775 ). For morphological description see species diagnosis and generic description.

Etymology. The specific name is a noun in apposition taken from the type locality.

Distribution. Kroombit Tops area, south east Queensland ( Fig. 26 ).

Figures

Fig. 1. Cephalothorax and eye pattern.(a) Oztira affinis,(b) Oztira kroombit, (c) Storenosoma hoggi, (d) Otira satura, (e) Pakeha protecta.

Fig. 6. Tarsal organ and trichobothria. (a, e–f) Oztira affinis (KS72948): (a) tarsus leg I; (e) tarsal organ and trichobothrial base, (f) tarsal organ ventral. (b) Oztira aquilonaria (S1371): tarsus leg I. (c, g–h) Oztira kroombit (S30752): (c) tarsus leg I, (g) tarsal organ and trichobothrial base, (h) tarsal organ ventral. (d) Oztira summa (S30776) tarsus leg I.

Fig.11. Oztira kroombit.(a–c) male palp (S30777):(a)ventral; (b) RTA, retrolateral; cymbium and RTA, dorsolateral. (d–e) female genitalia: (d) epigynum, ventral (S30752); (e) internal (S30778). Scale lines 0.25 mm.

Fig. 26. Distribution of Oztira spp.:  O. affinis, • O. kroombit, Ƃ O. aquilonaria, and  (indicated by arrow) O. summa.