Hahniinae

Růžička, Vlastimil, 2022, A review of the spider genus Iberina (Araneae, Hahniidae), Zootaxa 5133 (4), pp. 555-566 : 556-557

Key to genera of the subfamily Hahniinae

1 All eyes are large; the AME are equal in size or larger than the PME ( Fig. 1A ), and the CW is> 0.95 mm. The carapace and legs are distinctly orange brown. A stridulating organ is formed by a pair of oval fields covered by short, broad and blunt hairs on the ventral side of the abdomen, close to the petiolus ( Fig. 1B ). The male palpal femur has an apophysis ( Fig. 1D ). The male palpal patella has a short apophysis on the front margin ( Fig. 1E ). The male palpal tibia has a strong, black, twisted apophysis curved backwards, towards the patella ( Fig. 1F ). The epigynum presents a characteristic picture consisting of elongated spermathecae and copulatory ducts forming a “V” ( Fig. 1C ).......................................................... Antistea

- The AME are smaller than the PME, or the eyes are reduced; the CW is <0.85 mm. The carapace and legs are generally greyish brown or pale yellow. The abdomen has no stridulating organ. The male palpal femur has no apophysis. The male palpal patella has an apophysis on (or near) the back margin. The male palpal tibia has a slender apophysis oriented forwards, towards the cymbium. Epigynum not V-shaped....................................................................... 2

2 The clypeus is almost vertical in profile, usually lower than 1.3 ALE (e.g. Fig. 2A ). The eyes are visible near the clypeus margin in the view from above; the front part of the cephalothorax is oblong (e.g. Fig. 2B ). The leg femora have dorsal spines. The male patellar apophysis is slender, with a hook-like bend (e.g. Fig. 2C ). The tibial apophysis is sickle-shaped, bent towards the base of tibia and finely serrated on its inner margin (e.g. Fig. 2D ). The bulbus is ellipsoidal, with a transparent median apophysis (e.g. Fig. 2E ).................................................................................... Hahnia

- The clypeus is protruding in profile, usually higher than 1.3 ALE (e.g. Figs. 2F, L ). The eyes are clearly separated from the clypeus margin in the view from above; the front part of the cephalothorax is oval (e.g. Figs. 2G, M ). The leg femora have not dorsal spines. The male patellar apophysis is strong, bumpy, spur-like and not shaped like a crochet hook at the end (e.g. Figs. 2H, N ). The tibial apophysis is usually shorter, not bent towards the base of tibia ( Figs. 2I , 3A–E ). The bulbus has not median apophysis ( Figs. 2J , 4A–E ).............................................................................. 3

3 The clypeus is protruding in profile ( Fig. 2F ). The legs have no spines. The male patellar apophysis bifurcated at its end ( Fig. 2H ). The tibial apophysis is black, pointed and smooth at its end ( Fig. 2I ). The bulbus is elliptical ( Fig. 2J ). The epigyne very conspicuous with thick copulatory ducts ( Fig. 2K ), and the vulva have no spermathecae................... Hahniharmia

- The clypeus is protruding in profile, usually higher than 2 ALE ( Fig. 2L ). The leg patellae, tibiae and metatarsi III and IV have spines. The male patellar apophysis simple. The tibial apophysis is serrated at the end of its outer margin ( Figs. 3A–E ). The bulbus is discoidal ( Figs. 4A–E ). The vulva has oval spermathecae ( Figs. 5A–E ).............................. Iberina

Figures

FIGURE 1. Antistea elegans from Třeboň, Czechia. A—♀ carapace, dorsal view. B—♀ stridulating organ. C—♀ epigynum. D—♂ palpal femur. E—♂ palpal patella. F—♂ palpal tibia. Scale bars, 0.1 mm.

FIGURE 2. Hahnia pusilla from Police nad Metují, Czechia (A–E). Hahniharmia picta from Lednice, Czechia (F–K). Iberina difficilis from Horní Planá, Czechia (L–O). A, F, L—♀ carapace, profile. B, G, M—♀ carapace, dorsal view. C, H, N—♂ palpal patella. D, I—♂ palpal tibia. E, J—♂ bulbus. The outline of transparent median apophysis (ma) in H. pusilla is marked by a hair line. O—♂ palpal femur. K—♀ epigynum. Scale bars, 0.1 mm.

FIGURE 3. Male palpal tibia. A—I. mazarredoi from S. Roque de Riomiera, Spain. B—Iberina microphthalma from Raná, Czechia. C—I. candida from Radotín, Czechia. D—I. montana from Hüls bei Krefeld, Germany. E—I. difficilis from Horní Planá, Czechia. Scale bars, 0.1 mm.

FIGURE 4. Male palp. A—Iberina mazarredoi from S. Roque de Riomiera, Spain. B—I. microphthalma from Raná, Czechia. C—I. candida from Pretzfeld, Germany. D—I. montana from Hüls bei Krefeld, Germany. E—I. difficilis from Horní Planá, Czechia. Scale bars, 0.1 mm.

FIGURE 5. Female vulva. A—Iberina mazarredoi from Galzames, Spain. B—I. microphthalma from Jenišovice-Mravín, Czechia. C—I. candida from Streitberg, Germany. D—I. montana from Hüls bei Krefeld, Germany. E—I. difficilis from Horní Planá, Czechia. Scale bars, 0.1 mm.