Mistaria Lehtinen, 1967

Kioko, Grace M., Kioko, Esther N., Li, Shuqiang & Ji, Liqiang, 2018, On four species of the genus Mistaria Lehtinen, 1967 (Araneae, Agelenidae) from Kenya, African Invertebrates 59, pp. 111-126: 111

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Mistaria Lehtinen, 1967


Mistaria Lehtinen, 1967 

Lehtinen (1967: 249) and Santos and van Harten (2007: 166).


The genus Mistaria  shares various characters with three other genera from the subfamily Ageleninae  i.e. Agelescape  Levy, 1996, Hololena  Chamberlin & Gertsch, 1929 and Rualena  Chamberlin & Ivie, 1942 such as the presence of epigynal teeth in females and a palpal fucrum in males. Males of Mistaria  can however be distinguished from those of Agelena  by the presence of a large translucent fulcrum of the male palp (Fig. 5E); from males of Agelescape  by the absence of a tegular projection between the conductor and median apophysis and the presence of two tibial apophysis (see figure 1 in Guseinov et al. 2005); from males of Hololena  by having patellar apophysis (Fig. 2C) which is absent in Hololena  ; and from males of Rualena  by the absence of conductor projections (see figure 12 in Maya-Morales and Jiménez 2016). Female Mistaria  have epigynes that can be distinguished from those of Agelena  by having epigynal teeth and lateral notches (Fig. 3A); from those of Agelescape  by the lack of a scape (Fig. 3A); from those of Hololena  by the posterior position of the epigynal teeth (see figure 8 in Chamberlin and Ivie 1942); and from those of Rualena  by the absence of copulatory openings and hyaline spurs (see figure 40 in Maya-Morales and Jiménez 2016).


Medium to large spiders, 5-12 mm. Chelicerae with 3 retromarginal and 2 promarginal teeth. Labium as long as wide. Labium and endites apically cream-coloured. The carapace has distinct or obscure lateral bands and a long and deep fovea. Chevron markings and a central band are present on the abdomen. Colulus is a paired hairy plate.

Male palp. One long retrolateral tibial apophysis and an adjacent lateral tibial apophysis, patellar apophysis acute apically. Alternating position of the patellar apophysis relative to the retrolateral tibial apophysis, separated by length of tibia. Tegulum ovoid posteriorly. Cymbial furrow short at the base of the cymbium (Fig. 2C). Median apophysis long, curved at apex. Fulcrum well sclerotised with a membranous edge and projecting between the embolus and sub-tegulum. Conductor well-developed and sclerotised. Fulcrum and primary conductor forming a functional conductor. Embolus shortened, S-shaped, spine-like, originating basally or centrally.

Epigyne. Pit horseshoe shaped, plate weakly delimited. Atria wide, teeth on margin originating centrally or almost anteriorly. Atria delimited by a posterior sclerotised border. Copulatory ducts close or widely separated. Three retrolateral spermathecal lobes.

Type species.

Mistaria leucopyga  (Pavesi, 1883) from Ethiopia.