Austrohahnia praestans Mello-Leitão, 1942

Rubio, Gonzalo D., Lo-Man-Hung, Nancy F. & Iuri, Hernán A., 2014, A revision of the Neotropical genus Austrohahnia Mello-Leitão (Araneae, Hahniidae), Zootaxa 3894 (1), pp. 106-116 : 113-114

publication ID

https://dx.doi.org/10.11646/zootaxa.3894.1.8

publication LSID

lsid:zoobank.org:pub:9354539F-3114-4E14-B218-A1869ED50E12

DOI

https://doi.org/10.5281/zenodo.6130699

persistent identifier

https://treatment.plazi.org/id/03A887F8-FFB2-925F-FF14-F5A021DDEF26

treatment provided by

Plazi

scientific name

Austrohahnia praestans Mello-Leitão, 1942
status

 

Austrohahnia praestans Mello-Leitão, 1942

Figs 3 A–C View FIGURES 3 A – I ; 5

Austrohahnia praestans Mello-Leitão, 1942: 424 , fig. 56 (♀ holotype from ARGENTINA: Santiago del Estero, Colonia Dora, deposited in MLP 15590 View Materials , examined); Roewer 1954: 100; Schiapelli & Gerschman 1958: 201; Brignoli 1983: 507; World Spider Catalog 2014.

Material examined. ARGENTINA: Santa Fe: 2 ♀, General Obligado, 3 km NE Berna, S 29.26211 °, W 59.81745 °, 43 m asl (GPS +- 100 m), 2.III. 2014, M. Ramírez, C. Grismado, L. Piacentini & M. González Márquez leg. (MACN-Ar 30204); Entre Ríos: 2 ♀, 20 km south of Victoria, S 32.759444 °, W 59.93558 °, 31 m asl, 28.II. 1982, S. Roig, A. Roig Alsina & P. Goloboff leg. (MACN-Ar 21139).

Diagnosis. Female of A. praestans resembles those of A. melloleitaoi , both have a slightly similar arrangement of copulatory duct and have relatively advanced secondary receptacle, close to copulatory opening ( Figs 3 B, C View FIGURES 3 A – I ), but can be distinguished from A. melloleitaoi by the spherical copulatory opening (not flared as in A. melloleitaoi ) ( Fig. 3 A View FIGURES 3 A – I ). Austrohahnia praestans differs from A. catleyi new species in having a longer and differently arrangement copulatory duct: middle stretch of copulatory duct parallel, while it converges in A. catleyi new species ( Figs 3 B, C View FIGURES 3 A – I ; compare with 3 H, I), secondary receptacle close to copulatory opening ( Figs 3 B, C View FIGURES 3 A – I ) and a pale dorsal stripe along the abdomen.

Description. Female (MACN-Ar 21139) ( Figs 3 A–C View FIGURES 3 A – I ). Total length 3.92. Carapace 1.80 long, 1.30 wide; abdomen 2.05 long, 1.60 wide. Eye sizes and interdistances: AME 0.10, ALE 0.12, PME 0.11, PLE 0.11. AME–AME 0.04, ALE–ALE 0.24, PME–PME 0.11, PLE–PLE 0.37, AME–PME 0.08, ALE–PLE 0.02. Clypeus height 0.21, clypeus height at AME 0.31. Chelicerae with notable stridulatory files laterally; three promarginal and four retromarginal teeth. Sternum as long as wide. Leg measurements: I 4.70 (1.28, 1.48, 1.10, 0.84); II 4.56 (1.27, 1.44, 1.08, 0.77); III 4.49 (1.24, 1.40, 1.08, 0.77); IV 5.69 (1.53, 1.84, 1.45, 0.87). Carapace brown, slightly lighter in front of fovea and near the margins, margins dark brown. Sternum brown, lighter in the middle. Abdomen with a pale yellow stripe of sinuous edges dorsally along the abdomen, chevrons weakly marked; ventrally light brown with brown irregular spots. Legs pale yellow with brown rings. Epigyne ( Figs 3 A–C View FIGURES 3 A – I ): with two spherical copulatory opening, not flared, located in large atrium; middle stretch of copulatory duct directly backwards. The secondary receptacle close to copulatory opening. Variation (n = 5): total length 3.44 –4.00, mean 3.79. Male unknown.

Natural history. Some specimens were collected by sieving leaf litter. Specimens from Santa Fe were found on their webs on sandy soil.

Distribution ( Fig. 5 View FIGURE 5 ). Northeastern Argentina: Corrientes, Santa Fe, Entre Ríos and southeast of Santiago del Estero.

MLP

Museo de La Plata

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Hahniidae

Genus

Austrohahnia

Loc

Austrohahnia praestans Mello-Leitão, 1942

Rubio, Gonzalo D., Lo-Man-Hung, Nancy F. & Iuri, Hernán A. 2014
2014
Loc

Austrohahnia praestans Mello-Leitão, 1942 : 424

Brignoli 1983: 507
Schiapelli 1958: 201
Roewer 1954: 100
Mello-Leitao 1942: 424
1942