Research Article |
Corresponding author: Shuqiang Li ( lisq@ioz.ac.cn ) Academic editor: John Midgley
© 2019 Grace M. Kioko, Peter Jäger, Esther N. Kioko, Li-Qiang Ji, Shuqiang Li.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Kioko GM, Jäger P, Kioko EN, Ji L-Q, Li S (2019) On the species of the genus Mistaria Lehtinen, 1967 studied by Roewer (1955) from Africa (Araneae, Agelenidae). African Invertebrates 60(1): 109-132. https://doi.org/10.3897/afrinvertebr.60.34359
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Eleven species of the spider family Agelenidae Koch, 1837 are reviewed based on the type material and transferred from the genus Agelena Walckenaer, 1805 to Mistaria
Ageleninae, Agelena, new combination, redescription, transfer
The family Agelenidae C.L. Koch, 1837 has been under review for over two centuries, with most genera transferred out of the family to other families such as Amaurobiidae Thorell, 1870, Dictynidae O. Pickard-Cambridge, 1871, Hahniidae Bertkau, 1878, Linyphiidae Blackwall, 1859, Pisauridae Simon, 1890 and Zodariidae Thorell, 1881 (
The genus Mistaria Lehtinen, 1967 was among the six genera erected by
In this study, 11 Agelena species from various African countries are redescribed and their transfer to the genus Mistaria is proposed: M. jaundea (Roewer, 1955), comb. nov. (♂, Cameroon), M. jumbo (Strand, 1913), comb. nov. (♂♀, Central Africa), M. kiboschensis (Lessert, 1915), comb. nov. (♂♀, Central & East Africa), M. keniana (Roewer, 1955), comb. nov. (♀, Kenya), M. lawrencei (Roewer, 1955), comb. nov. (♀, Zimbabwe), M. longimamillata (Roewer, 1955), comb. nov. (♀, Mozambique), M. moschiensis (Roewer, 1955), comb. nov. (♀, Tanzania), M. mossambica (Roewer, 1955), comb. nov. (♀, Mozambique), M. nyassana (Roewer, 1955), comb. nov. (♀, Malawi), M. teteana (Roewer, 1955), comb. nov. (♂, Mozambique) and M. zuluana (Roewer, 1955), comb. nov. (♀, South Africa).
All spiders were preserved in 75% alcohol. Specimens were examined and measured using a LEICA M205C stereomicroscope. Images were captured using an Olympus C7070 wide zoom camera mounted on an Olympus SZX12 stereomicroscope. Male and female copulatory organs were dissected from the body and photographed separately. Epigynes were cleaned by first removing the tissues using a needle then boiling in 10% potassium hydroxide for 3–5 minutes. Leg measurements are given as follows: Total length (femur, patella and tibia, metatarsus, tarsus). All measurements are reported in millimeters. References to figures in the cited papers are listed in lowercase (fig. or figs); figures from this paper are noted with an initial capital (Fig. or Figs). Type material from the Senckenberg Research Institute in Frankfurt, Germany (
The abbreviations used in the paper include: ALE, anterior lateral eye; AME, anterior median eye; AME–ALE, distance between AME and ALE; AME–AME, distance between the two AME; AME–PME, distance between AME and PME; ALE–PLE, distance between ALE and PLE; C, conductor; Cb, cymbium; CD, copulatory duct; CF, cymbial furrow; E, embolus; Ed, epigyne delimiting edge (anterior); EIg, extended inward growth; Eo, embolic outgrowth; ET, epigynal teeth; F, fulcrum; FD, fertilisation duct; LTA, lateral tibial apophysis; MA, median apophysis; Ml, median lobe of spermatheca; PA, patella apophysis; Pl, posterior lobe of spermatheca; PLE, posterior lateral eyes; PME, posterior median eyes; PME–PLE, distance between PME and PLE; PME–PME, distance between the two PME; RTA, retrolateral tibial apophysis; S, spermatheca; T, tegulum; Vde, vulva delimiting edge (anterior). Apart from the eye abbreviations which are used in the text, all other abbreviations are cited in the figures. Labeling of figures follows
Mistaria leucopyga (Pavesi, 1883) (Type species).
Agelena leucopyga Pavesi, 1883: 41–42 (♀). No information on type locality. Not examined.
Males of the genus Mistaria can be separated from those of Agelena by the presence of a large translucent fulcrum in the former species (Fig.
See
Mistaria leucopyga (Pavesi, 1883) from Ethiopia.
The type species was not examined. The author of the type species
Agelena jaundea Roewer, 1955: 69.
Holotype ♂, Cameroon, Jaunde (Yaoundé), 1953, Coll. C.F. Roewer (
Mistaria jaundea comb. nov. and M. nairobii have the retrolateral tibial apophysis to lateral tibial apophysis ratio as 3:1 (see fig. 2B in
Total length 7.38. Carapace 3.53 long 2.88 wide. Abdomen 3.85 long 2.24 wide. Abdomen 3.85 long 2.24 wide. Habitus as in Fig.
Palp as in Fig.
Female unknown.
Cameroon (Fig.
Palp of Mistaria jaundea, holotype male A prolateral view B ventral view C retrolateral view. C, conductor; Cb, cymbium; CF, cymbium furrow; E, embolus; F, fulcrum; LTA, prolateral tibial apophysis; MA, median apophysis; PA, patella apophysis; RTA, retrolateral tibial apophysis, ST, sub tegulum; T, tegulum.
Agelena jumbo
Agelena jumbo Roewer, 1955: 37.
Holotype ♀, Rwanda, 1907 (
Mistaria jumbo comb. nov. can be distinguished from the type M. leucopyga by the shape of the anterior lobe of the epigyne which has an extended inward growth lacking in the former species (Fig.
Female. Total length 11.00. Carapace 3.90 long 3.53 wide. Abdomen 7.10 long 4.49 wide. Habitus as in Fig.
Epigyne as in Fig.
Male body not available for redescription. See Roewer, 1955: 37–38.
Palp as in Fig.
Democratic Republic of the Congo, Rwanda (Fig.
Mistaria jumbo, holotype female A epigyne, ventral view B vulva, dorsal view. Al, anterior lobe of spermatheca; CD, copulatory duct; Ede, epigyne delimiting edge (anterior); EIg, extended inward growth; ET, epigynal teeth, FD, fertilization duct; Ln, lateral notches; Ml, median lobe of spermatheca; Pl, posterior lobe of spermatheca; Vde, vulva delimiting edge (anterior).
Agelena keniana
Holotype ♀, Kenya, Nairobi, 1953, Coll. C.F. Roewer (
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
Total length 11.54. Carapace 5.45 long, 3.85 wide. Abdomen 6.09 long 3.53 wide. Habitus as in Fig.
Epigyne as in Fig.
Male unknown.
Kenya (Fig.
Mistaria keniana, holotype female A epigyne, ventral view B vulva, dorsal. Al, anterior lobe of spermatheca; CD, copulatory duct; Ede, epigyne delimiting edge (anterior); ET, epigynal teeth; FD, fertilization duct; Ln, lateral notches; Ml, median lobe of spermatheca; Pl, posterior lobe of spermatheca; Vde, vulva delimiting edge (anterior).
Agelena leucopyga kiboschensis Lessert, 1915: 487.
Agelena kiboschensis Roewer, 1955: 41.
Agelena leucopyga kiboschensis, Tanzania, Kiboscho, 3000–4000 m, (type ♀, no date), Kibonoto, (1 ♂, type, X), 1915, Lessert, Muséum d'histoire naturelle de Genève, Switzerland(not examined).
Rwanda, 2♀, 1953, Coll. C.F. Roewer (
M. kiboschensis comb. nov. can be distinguished from M. leucopyga by the larger copulatory ducts (Fig.
Female. Total body length 12.82. Carapace 5.77 long, 4.17 wide. Abdomen 7.05 long, 4.49 wide. Habitus as in Fig.
Epigyne as in Fig.
Male not available for redescription. See
Central & East Africa (Fig.
Mistaria kiboschensis, female from Rwanda A epigyne, ventral view B vulva, dorsal view. Al, anterior lobe of spermatheca; CD, copulatory duct; Ede, epigyne delimiting edge (anterior); ET, epigynal teeth; FD, fertilization duct; Ln, lateral notches; Ml, median lobe of spermatheca; Pl, posterior lobe of spermatheca; Vde, vulva delimiting edge (anterior).
Agelena lawrencei Roewer, 1955: 60.
Holotype ♀, Zimbabwe, near Salisbury [=Harare], 1953, Coll. C.F. Roewer (
M. lawrencei comb. nov. and M. mossambica comb. nov. share characteristics such as the shape of the anterior lobe, triangular centrally projected copulatory ducts and wide concave epigyne anterior delimiting edge (Figs
Total length 9.62. Carapace 4.49 long 3.85 wide. Abdomen 5.13 long 3.21 wide. Habitus as in Fig.
Epigyne as in Fig.
Male unknown.
Zimbabwe (Fig.
Mistaria lawrencei, holotype female A epigyne, ventral view B vulva, dorsal view. Al, anterior lobe of spermatheca; CD, copulatory duct; Ede, epigyne delimiting edge (anterior); ET, epigynal teeth; FD, fertilization duct; Ln, lateral notches; Ml, median lobe of spermatheca; Pl, posterior lobe of spermatheca; Vde, vulva delimiting edge (anterior).
Agelena longimamillata
Holotype ♀, Mozambique, Tete, 1953, Coll. C.F. Roewer (
M. longimamillata comb. nov. and M. zorica have the distal segment of posterior spinnerets twice the size of the anterior spinnerets. The two species can be distinguished by the swollen tarsi of the palp in M. longimamillata comb. nov (Fig.
Total length 8.34. Carapace 3.85 long 3.21 wide. Abdomen 4.49 long 2.56 wide. Habitus as in Fig.
The epigyne of this species was not available for redescription, it was missing in the vial. However, based on the diagram by
Male unknown.
Mozambique (Fig.
Agelena moschiensis
Holotype ♀, Tanzania, Moschi [=Moshi], 1953, Hartmann leg., Coll. C.F. Roewer (
M. moschiensis comb. nov. and M. kiboschensis both have horizontally ovoid anterior lobes of the spermatheca and deep concave epigyne anterior delimiting edges (Figs
Total length 9.30. Carapace 4.17 long 3.53 wide. Abdomen 5.13 long 3.21 wide. Habitus as in Fig.
Epigyne as in Fig.
Male unknown.
Tanzania (Fig.
Mistaria moschiensis, holotype female A epigyne, ventral view B vulva, dorsal. Al, anterior lobe of spermatheca; CD, copulatory duct; Ede, epigyne delimiting edge (anterior); ET, epigynal teeth; FD, fertilization duct; Ln, lateral notches; Ml, median lobe of spermatheca; Pl, posterior lobe of spermatheca; Vde, vulva delimiting edge (anterior).
Agelena mossambica
Holotype ♀, Mozambique, Tete, 1953, Coll. C.F. Roewer (
M. mossambica comb. nov. strongly resembles M. lawrencei by sharing similar characters such as the shapes of the anterior lobe of the spermatheca and epigyne anterior delimiting edge and position of copulatory ducts (Figs
Total length 9.62. Carapace 4.49 long 3.85 wide. Abdomen 5.13 long 3.53 wide. Habitus as in Fig.
Epigyne as in Fig.
Male unknown.
Mozambique (Fig.
Mistaria mossambica, holotype female A epigyne, ventral view B vulva, dorsal. Al, anterior lobe of spermatheca; CD, copulatory duct; Ede, epigyne delimiting edge (anterior); ET, epigynal teeth; FD, fertilization duct; Ln, lateral notches; Ml, median lobe of spermatheca; Pl, posterior lobe of spermatheca; Vde, vulva delimiting edge (anterior).
Agelena nyassana
Holotype ♀, Nyassaland [=Malawi], 1953, Coll. C.F. Roewer (
M. nyassana comb. nov. can be distinguished from M. zorica and M. zuluana comb. nov. by the shape of the anterior lobe which is cichlid fish-shaped in this species (Fig.
Total length 6.10. Carapace 2.50 long 2.19 wide. Abdomen 3.60 long 2.60 wide. Habitus as in Fig.
Epigyne as in Fig.
Male unknown.
Malawi (Fig.
Mistaria nyassana, holotype female A epigyne, ventral view B vulva, dorsal. Al, anterior lobe of spermatheca; CD, copulatory duct; Ede, epigyne delimiting edge (anterior); ET, epigynal teeth; FD, fertilization duct; Ln, lateral notches; Ml, median lobe of spermatheca; Pl, posterior lobe of spermatheca; Vde, vulva delimiting edge (anterior).
Agelena teteana
Holotype ♂, Mozambique, Tete, 1953, Coll. C.F. Roewer (
Mistaria teteana comb. nov. can be distinguished from M. nairobii by the size ratio of the retrolateral tibial apophysis to lateral tibial apophysis which is 5:1 (Fig.
Total length 6.74. Carapace 2.89 long 2.24 wide. Abdomen 3.85 long 1.92 wide. Habitus as in Fig.
Palp as in Fig.
Female unknown.
Mozambique (Fig.
Palp of Mistaria teteana, holotype male A prolateral view B ventral view C retrolateral view. C, conductor; Cb, cymbium; CF, cymbium furrow; E, embolus; F, fulcrum; LTA, prolateral tibial apophysis; MA, median apophysis; PA, patella apophysis; RTA, retrolateral tibial apophysis, ST, sub tegulum; T, tegulum.
Agelena zuluana
Holotype ♀, South Africa, Zululand, Ulundi, 1953, Coll. C.F. Roewer (
M. zuluana comb. nov. and M. nyassana have similarly shaped epigyne anterior delimiting edge (Figs
Total length 6.81. Carapace 2.81 long 2.40 wide. Abdomen 4.00 long 2.40 wide. Habitus as in Fig.
Epigyne as in Fig.
Male unknown.
South Africa (Fig.
Mistaria zuluana, holotype female A epigyne, ventral view B vulva, dorsal. Al, anterior lobe of spermatheca; CD, copulatory duct; Ede, epigyne delimiting edge (anterior); ET, epigynal teeth; FD, fertilization duct; Ln, lateral notches; Ml, median lobe of spermatheca; Pl, posterior lobe of spermatheca; Vde, vulva delimiting edge (anterior).
The manuscript benefited greatly from comments by John Midgley, Francesco Ballarin, Theo Blick, Ivan L.F. Magalhaes and Lina Maria Almeida-Silva. Julia Altmann assisted in acquiring the types. The study was financially supported by the National Natural Science Foundation of China to Shuqiang Li (NSFC-31530067).