Agelenidae  C. L. Koch, 1837 / Aterigena  Bolzern, Hänggi & Burckhardt, 2010   4 species

Aterigena soriculata  (Simon, 1873)

Description
Male

Male palp: RTA with large dorsal branch, distally truncated and strongly sclerotized; lateral branch developed as a weakly sclerotized point; ventrally bearing a weakly developed rounded ridge. Embolus originating (free apex) between 7 and 8 o’clock position; length (only free apex) less than 1.75 times cymbium width; distal tip between 2 and 3 o’clock position. Conductor lamella-like, distally elongated (parallel to cymbium), arcuated and laterally folded along the whole length; as long as alveolus, distally reaching beyond alveolus margin; terminal end forming sclerotized peak, pointing ventrally (in lateral view). Connection of conductor and tegulum membranous. Median apophysis originating between 4 and 5 o’clock position. Tegular apophysis absent. Prosoma length: 4.47 mm.

Female

Epigynum and vulva: Epigynal plate sclerotized with distinct atrium, transversely oval in shape; anterior margin of atrium sclerotized at epigynal plate, gradually becoming membranous. Ground plate of atrium transversally subdivided by straight groove: anterior part membranous or weakly sclerotized, semicircular in shape; posterior part sclerotized, forming semicircular bar. Copulatory openings barely visible, located medially of atrium. Copulatory duct short and straight. Receptacula small, globular; fertilization ducts long and strongly convoluted. Prosoma length: 4.14–5.07 mm.

Additional information

Eyes: Diameter: PME: 0.17–0.18; PLE: 0.18–0.21; AME: 0.13–0.18; ALE: 0.19–0.21. Distances: PME–PME less than diameter of PME; PME–AME less than or equal to diameter of PME; PME–PLE less than or equal to diameter of PME; PME–ALE less than 1.5 diameter of PME; AME–AME about 0.5 diameter of AME. Clypeus height (measured under AME) less than 2.5 times diameter of AME; (measured under ALE) about 1.5 times diameter of ALE.

Coloration: Two longitudinal symmetrical dark bands present on carapace, interrupted, sometimes reduced to triangular dots, intensified by white and black plumose hairs. Opisthosoma dark green-brownish, at the cardiac mark yellowish with dots on the sides, continuing in broad chevrons posteriorly. Legs not annulated.

Additional somatic characters: Tarsus I with 7–8 dorsal trichobothria, tarsi II–IV with 7. Colulus dark, sometimes only partially. Both segments of PLS very weakly darkened. PMS slightly smaller than ALS.

Distribution
  Presence
  No data
Global distribution (WSC 2018): France (Corsica), Italy (Sardinia)
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
uncertain
Figures
References

Bolzern A, Hänggi A, Burckhardt D (2010) Aterigena, a new genus of funnel-web spider, shedding some light on the Tegenaria-Malthonica problem (Araneae: Agelenidae) J Arachnol 38: 162–182

Brignoli P M (1974a) Ragni d'Italia XXI. Settimo contributo alla conoscenza dei ragni cavernicoli di Sardegna e descrizione di una nuova specie di Corsica (Araneae). Revue suisse Zool 81: 387-395

Dresco E, Célérier M-L (1979) Étude des tégénaires. Tegenaria soriculata Simon 1873 et Tegenaria cyrnea Brignoli 1974 (Araneae, Agelenidae). Bull Soc zool Fr 104: 221-231

Helsdingen P J van (2010a) Araneae. In: Fauna Europaea Database (Version 2010.1), online at www.european-arachnology.org

Pantini P, Isaia M (2017) Checklist of the Italian spiders (version May 2017). online at http://www.museoscienzebergamo.it/web/index.php?option=com_content&view=category&layout=blog&id=96&Itemid=94

World Spider Catalog (2018) World Spider Catalog. Natural History Museum Bern, online at http://wsc.nmbe.ch, version 19.0, accessed on 14.01.2018. doi: 10.24436/2