Mistaria keniana (Roewer, 1955) Roewer, 1955

Kioko, Grace M., Jaeger, Peter, Kioko, Esther N., Ji, Li-Qiang & Li, Shuqiang, 2019, On the species of the genus Mistaria Lehtinen, 1967 studied by Roewer (1955) from Africa (Araneae, Agelenidae), African Invertebrates 60 (1), pp. 109-132 : 109

Mistaria keniana (Roewer, 1955) comb. nov. Figs 4, 12G, 13

Agelena keniana Roewer 1955: 28.

Type material examined.

Holotype ♀, Kenya, Nairobi, 1953, Coll. C.F. Roewer (SMF 9910495).

Diagnosis.

M. keniana comb. nov. can be separated from M. leucopyga by the absence of a septum and smaller copulatory ducts in the latter species (see figs 3, 4 in Santos and van Harten 2007) compared to a septum present and larger copulatory ducts in the former species (Fig. 4A, B). It can be distinguished from M. fagei by the posteriorly projected and heavily sclerotized copulatory ducts (see fig. 1B in Kioko et al. 2018) compared to centrally protruding and lightly sclerotized in M. keniana comb. nov. (Fig. 4B) and also by the ovoid anterior lobe compared to round lobe in the former species.

Redescription.

Total length 11.54. Carapace 5.45 long, 3.85 wide. Abdomen 6.09 long 3.53 wide. Habitus as in Fig. 12G. Carapace longer than wide, brown-yellow, cephalic region blackish-brown. Fovea long, central, four lateral black lines. Eye sizes and interdistances: AME 0.26, ALE 0.28, PME 0.24, PLE 0.28, AME–AME 0.14, AME–PME 0.31, ALE–PLE 0.13, PME–PME 0.20, PME–PLE 0.31. Chelicerae brown. Labium longer than wide, 3/4 length of endites, brown. Endites brown. Sternum brownish-yellow. Legs brown-yellow. Leg measurements: I– (4.48, 5.13, 3.53, -), II 13.73 (4.49, 4.11, 3.21, 1.92), III– (4.17, 3.85, 2.88, -), IV 15.38 (4.81, 4.49, 3.84, 2.24). Tarsi I & III missing. Abdomen ovoid, creamish-yellow, two black parallel lines, three chevron marks. Spinnerets creamish-yellow, first segment of posterior spinnerets and anterior spinnerets equal length.

Epigyne as in Fig. 4A, B. Teeth and anterior delimiting edge form a wide, perfect concave shape. Teeth wider posteriorly. Septum present in vulva (Fig. 4B). Copulatory ducts central, close to each other. Anterior region wider than posterior (Fig. 4A). Anterior lobe of the spermathecae round, size of the lobes decreasing posteriorly.

Male unknown.

Distribution.

Kenya (Fig. 13).