New Species and New Records of Jumping Spiders (Araneae

84
51 African Invertebrates Vol. 52 (1) Pages 51–134 Pietermaritzburg June, 2011 New species and new records of jumping spiders (Araneae: Salticidae) from central South Africa Charles R. Haddad 1* and 2 1 Department of Zoology & Entomology, University of the Free State, P.O. Box 339, Bloemfontein, 9300 South Africa; [email protected] 2 * Author for correspondence ABSTRACT Salticidae) mainly from the Free State and Northern Cape provinces, South Africa, lead to the discovery Cembalea triloris sp. n., Evarcha brinki sp. n., sp. n., E. vittula sp. n., Icius pulchellus sp. n., sp. n., L. lotzi sp. n., sp. n., Pseudicius dependens sp. n., sp. n., P. karinae sp. n., P. maculatus sp. n., P. solitarius sp. n., sp. n. and Tanzania meridionalis Rhene konradi Pellenes bulawayoensis P. modicus P. karoo Thyene thyenioides Dendryphantes hararensis Menemerus pilosus P. modicus, P. etosha, P. karoo, Tanzania mkomaziensis T. thyenioides records in the Northern Cape Province, Cembalea triloris sp. n. is also recorded from southern Namibia. from the Northern Cape. Thyenula oranjensis Nama Karoo, taxonomy. INTRODUCTION et al. a, b; Haddad 2005; Fourie 2010) and Nama Karoo Biome (Haddad et al levels of endemism, conservation importance, and the factors affecting the distribution of the species occurring in each. A pattern that has emerged from these studies is that the in these biomes, a pattern that has been regularly observed in savannah (e.g. Whitmore et al. 2002; Haddad et al. et al. et al. et al. 2010), a structurally more complex vegetation type. During sampling in these biomes over the last three decades, including studies forming part of the South African National Survey of Arachnida (SANSA), several species of

Transcript of New Species and New Records of Jumping Spiders (Araneae

51

African Invertebrates Vol. 52 (1) Pages 51–134 Pietermaritzburg June, 2011

New species and new records of jumping spiders(Araneae: Salticidae) from central South Africa

Charles R. Haddad1* and 2

1Department of Zoology & Entomology, University of the Free State, P.O. Box 339, Bloemfontein, 9300 South Africa; [email protected]

2

*Author for correspondence

ABSTRACT

Salticidae) mainly from the Free State and Northern Cape provinces, South Africa, lead to the discovery Cembalea triloris sp. n., Evarcha brinki sp. n.,

sp. n., E. vittula sp. n., Icius pulchellus sp. n., sp. n., L. lotzi sp. n., sp. n., Pseudicius dependens sp. n., sp. n., P. karinae sp. n., P. maculatus sp. n., P. solitarius sp. n.,

sp. n. and Tanzania meridionalis Rhene konradiPellenes bulawayoensis P. modicus

P. karoo Thyenethyenioides Dendryphantes hararensis

Menemerus pilosus P. modicus, P. etosha, P. karoo, Tanzania mkomaziensis

T. thyenioidesrecords in the Northern Cape Province, Cembalea triloris sp. n. is also recorded from southern Namibia.

from the Northern Cape. Thyenula oranjensis

Nama Karoo, taxonomy.

INTRODUCTION

et al.a, b; Haddad 2005; Fourie

2010) and Nama Karoo Biome (Haddad et al

levels of endemism, conservation importance, and the factors affecting the distribution of the species occurring in each. A pattern that has emerged from these studies is that the

in these biomes, a pattern that has been regularly observed in savannah (e.g. Whitmore et al. 2002; Haddad et al. et al. et al.

et al. 2010), a structurally more complex vegetation type.

During sampling in these biomes over the last three decades, including studies forming part of the South African National Survey of Arachnida (SANSA), several species of

52 AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

species of Heliophanus Thyenula Simon, 1902, and one of each Rhene

a, bHaddad 2002). In the current contribution an additional 15 species are described, several

previously described in the papers listed above.

formally conserved (O’Connor & Kuyler 2005). A large portion of the grassland habitat

coming from mining, urban expansion, industrialisation and associated pollution (Mentis

et al. 2003).

servation assessments in South Africa, as they are abundant, usually sampled throughout

ecological research on the group.

MATERIAL & METHODS

and 2009 at nine sites in central South Africa (Free State, Northern Cape and North West provinces), and several surveys as part of SANSA. Additionally, some accessioned museum material collected at various sites in the Free State, Northern Cape and

In assessing the distribution of the species presented here, all records from South

and coverage of the material examined in the current study. Records from ecological

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Voucher material is deposited in the National Museum, Bloemfontein (NMBA), ARC–Plant Protection Research Institute, National Collection of Arachnida, Pretoria (NCA),

Natural History, Pretoria (TMSA), all in South Africa, the Natural History Museum at

Tervuren, Belgium (MRAC).

Baryphas Simon, 1902Baryphas ahenus Simon, 1902.

members of the genus Evarcha Simon, 1902.

Baryphas ahenus Simon, 1902Figs 1, 2

Baryphas ahenusLessert 1925a

sexes in Figs 1, 2.Free State

Rhus ciliata

R. ciliata shrubs,

beats, R. ciliata

54 AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

shrubs.

CembaleaTularosa plumosa Lessert, 1925.

A small genus consisting of only three species distributed in the Afrotropical Region. The members of the genus have a high carapace; a characteristic feature of males is the

Baryphas ahenus, male (1) and female (2); (3) Cembalea triloris sp. n., male; (4) Cosmophasisaustralis Dendryphantes hararensis,

D. purcelli, male (9) and female (10); (11) Evarcha brinki sp. n., male; (12) sp. n., male. Scale bars = 1 mm.

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in preserved specimens and are sometimes missing as a result.

Cembalea triloris sp. n.

tri- lorum

Male.

Cembalea triloris

AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

FemaleNorthern Cape

Northern Cape

b) as Pellenes sp.

Cosmophasis Simon, 1901Plexippus thalassinus

species described in Cosmophasis Mexcala

are unclear and the Afrotropical fauna urgently needs revision.

Cosmophasis australis Simon, 1902

Cosmophasis australisAlmota quinii

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Male.

Cosmophasis australis

AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

embolus short (Fig. 20).

University, USA).Free State

time (Fig. 23).

Cosmophasis and other

Cosmophasis

Cyrba

Cyrba

have ranges extending into the Palaearctic. Species of this genus can be recognized by

Fig. 23. Distribution of Baryphas ahenus (circles), Cembalea triloris sp. n. (squares), Cosmophasis australis(pentagons) and (diamonds) in South Africa. Solid icons indicate published

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internal structure of the spermathecae.

Simon, 1900

Free State

DendryphantesAraneus hastatus

characteristically has silver patches of translucent guanine crystals, and the abdomen has

ceptacles.

Dendryphantes hararensis

Dendryphantes hararensis

Free State

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collected in high altitude grasslands in the eastern Free State, but considering that the type

Dendryphantes purcelli

Dendryphantes purcelliiDendryphantes purcelli

Male.

near short embolus (Figs 24, 25).Female.

Free State

D. hararensis, this

Evarcha Simon, 1902Araneus falcatus

Evarcha

genus are primarily differentiated by morphological features. The males of most species

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genitalic structure suggests that the genus is paraphyletic, as demonstrated by the species

sp. n.

novelist.

Dendryphantes purcelli

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terminal apophysis; the shape of tibial apophysis is also characteristic.

Male.

Evarcha brinki

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terminal apophysis (Figs 29, 30).Female

Northern Cape

Evarcha,but the structure of embolus differs from that of other African members of the genus. It is slightly similar to the Chinese species E. sichuanensisE. orientalis (Song & Chai, 1992).

sp. n.Figs 12, 33–35

species.E. striolata

distinguished by the less convex carapace and presence of a dorsal abdominal scutum in males. The male palp of sp. n. differs from that of E. striolata by the

very similar to that of the female described as 2000 from Tanzania, Ethiopia and South Africa (sexes of the latter species are probably

E. striolata.

Male.

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Evarcha

Female.

Figs 33–35.

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very broad, forming broad loop medially; receptacles heavily sclerotized, composed of several lateral chambers (Fig. 35B).

Free State Acacia karroo

Free StateKwaZulu-

NatalNorth West

(and the closely related E.striolata Evarcha species. It is related to the Asian group of species. The shape of the epigyne and its structure are related to the Asian E. kochi Simon, 1902, but also to the common African E. dotata

Dendryphantes hararensis (circles), D. purcelli (squares), Evarcha brinki sp. n. (pentagon) and sp. n. (diamonds) in South Africa. Solid icon indicates a published

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Evarcha prosimilis

Evarcha similisEvarcha prosimilis

Free State

Cussonia paniculataRhus lancea litter, 20.v.2009,

Rhus ciliata,

North West

subtropical eastern and northern South Africa (Fig. 51).

State recently sampled by students and as part of SANSA surveys. It is one of the most

Evarcha vittula sp. n.

vittathe abdomen.

E. maculata

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pattern (E. maculata Evarcha species) and by the straight embolus (slightly curved in E. maculata).

Male.

Evarcha prosimilis E. vittula sp. n., male; (40) Festuculalawrencei Heliophanus modicus, male (41) and female (42); (43, 44) H. transvaalicus Icius insolidus, male (45) and

I. pulchellus sp. n., male. Scale bars = 1 mm.

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Evarcha vittula

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embolus short (Fig. 49).Female

Free State1, pitfall traps, 22.xi–23.xii.2005, C. Haddad (NMBA, 14103).

Free StateRhus lancea

S. Otto & R. Poller (NMBA, 14104);

Free State

Fig. 51. Distribution of Evarcha prosimilis (circles), E. vittula sp. n. (squares) and Festucula lawrencei

from central South Africa.

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Evarcha based on the body shape and

ginating prolaterally and the posterior lobe of the bulb. The striped colour pattern of

resembles that of Plexippus E. vitullaPlexippus. Due

after discovery of the female. One paratype (NMBA, 14104) is smaller and slightly paler in colour.

Festucula Simon, 1901 Festucula vermiformis Simon, 1901.

carapace type.

Festucula lawrencei Lessert, 1933Fig. 40

Festucula lawrencei

females in Fig. 40.Free State Province

HeliophanusAranea cuprea

Helafricanus.

males have seminal ducts directed anteriorly and spermathecae that tend to be coiled H. transvaalicus Simon, 1901, belongs

to the subgenus Heliophanusapophysis and additional femoral protuberances, and females by the presence of a single

are not sexually dimorphic, and colouration is similar in both sexes (Figs43,44). A further

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seven Heliophanus

H. (Heliocapensis) charlesi H. (Heliocapensis) deserticola Simon, 1901, H. (Helafricanus) patellaris Simon, 1901, H. (Heliophanus) sororius

H. (Heliocapensis) H. (Heliocapensis) thaleri H. (Helafricanus) trepidus Simon, 1910.

Heliophanus (Helafricanus) debilis Simon, 1901Heliophanus debilis a

Free State

Rhus ciliata,Odontotermes

termite mound, 25.x.2003, C. Haddad (NHMWU). Northern Cape

generally rare.

Fig. 52. Distribution of Heliophanus debilis (circles), H. hastatus (squares) and H. modicus (pentagons) in

South Africa.

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Heliophanus (Helafricanus) hastatusHeliophanus hastatus

Free State

North West

Heliophanus (Helafricanus) modicusFigs 41, 42

Heliophanus modicus

41, 42.Free State

Africa.

Heliophanus (Helafricanus) nanusHeliophanus nanus

Free State

Rhus lancea trees,

grassland.

Heliophanus (Helafricanus) pistaciaeHeliophanus pistaciae

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Free State

Rhus lancea

Acaciakarroo

A. karrooThemeda triandra

Odontotermes termite

North West

Northern Cape

the arboreal fauna and common in ground covers (Haddad et al. b). Most of the

fairly adaptable habits.

Fig. 53. Distribution of Heliophanus nanus (circles) and H. pistaciae (squares) in South Africa. Solid icons

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Heliophanus (Helafricanus) proszynskiiHeliophanus proszynskii

Free State

Eucalyptus

(Fig. 54).

grassland.

Heliophanus (Heliophanus) transvaalicus Simon, 1901Figs 43, 44

Heliophanus transvaalicus Simon 1901a b

43, 44.Free State

Rhus

Fig. 54. Distribution of Heliophanus proszynskii (circles) and H. transvaalicus (squares) in South Africa.

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ciliataR. ciliata

shrubs.

Icius

Marpissa hamata

straight seminal ducts and rounded receptacles.

Icius insolidus

Menemerus insolidus aIcius insolidus

Male.

Free State

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Northern Cape

b) as sp. (= P. karoo

Icius pulchellus sp. n.

pulchellus (fair, neat, pretty).I. minimus

Ethiopia, but the male is easily distinguished by the pattern of the abdomen and by the

Icius insolidus

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Male.

Icius pulchellus

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of irregular shape, embolus falciform (Fig. 59).Female

Free State

Simon, 1901Attus redii

The genus contains about 40 species distributed in the Old World. Morphologically all

Icius insolidus (circles) and I. pulchellus sp. n. (square) in South Africa. Solid icon

79

Langona hirsuta sp. n.

hirsuta (hairy), referring to the very hairy pedipalps of the male.

very dense long light hairs and by the presence of a single tibial apophysis. Slightly similar to L. bitumorata

L. lotziL. warchalowskii Memenerus pilosus

M. transvaalicus

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Male.

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Female.

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Free State

Free State

(MRAC, 230339).Free State

Northern Cape

marginally entering the Northern Cape (Fig. 93).

is tentative and is based on the toothless chelicerae and the similarities of the male to members of this genus.

Langona lotzi sp. n.

specialist in Miturgidae spiders and curator of Arachnida at the NMBA.

posterior edge of the epigynal depression.

83

Male..

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Embolus short, its basal part

Female.

sclerotized chambers (Figs 91, 92).Free State

South Africa (Fig. 93).

montane grassland at ca

Fig. 93. Distribution of sp. n. (circles) and L. lotzi sp. n. (square).

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Male..

AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

Female.

procurved posterior depressions, their rims forming shields above the gonopores (Fig.

Free State

Rhus lancea

Northern Cape

MenemerusAttus semilimbatus

distinctive accessory glands.

Menemerus pilosus

Menemerus pilosus a

aNorthern Cape

Menemerus transvaalicus

Menemerus transvaalicus a

a) described both sexes; general appearance of both sexes in Figs

87

Free Stateunder Eucalyptus

C. Haddad (MRAC, 230322);under Eucalyptus

Odontotermes termite mound, 25.x.2003, C. Haddad (NHMWU).

time (Fig. 101).Eucalyptus,

Microbianor Logunov, 2000

are morphologically similar to the genus Bianordistinguished by their very small size. The males have a diminutive process at the external margins of the maxillae, and a characteristically curved embolus tip. The females have distinctly shorter seminal ducts than in Bianor.

Microbianor globosus sp. n.

(globose), referring to the shape of the bulb.

apophysis.

Male.

and three pairs of small patches on lateral sides (last pair, placed at spinnerets, largest).

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bulb, its tip thin and colourless, curved (Fig. 99).

Fig. 101. Distribution of (circles), Menemerus pilosus (square), M. transvaalicus(pentagons) and sp. n. (diamond) in South Africa. Solid icons indicate

89

FemaleNorthern Cape

Orange River.

proposed that the genus originated in Africa and speciated on the Indian Ocean islands

Oriental Harmochireae are necessary to more thoroughly assess the biogeography of Microbianor.

NattaNatta horizontalis

both sexes resemble those of Phintella species.

(Simon, 1901)

c b

Cyllobelus australis

Free State

Northern Cape

pecially Anoplolepis custodiensscales on the body. In central South Africa it is clearly less common than N. horizontalis

Natta horizontalisFigs 102, 103

Natta horizontalis

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Cyllobelus rufopictus b

Cyllobelus tristellatusNatta tristellataNatta rufopicta

Free State

Northern Cape

103) Natta horizontalis, male (102) and female (103); (104, 105) , male (104) Pellenes bulawayoensis

P. modicus, male (110) and female (111); (112, 113) P. tharinae, male (112) and female (113). Scale bars = 1 mm.

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above.

bolus enveloped by a terminal apophysis; the gonopores in the female’s epigyne are

Figs 104, 105a

a) described both sexes; general appearance as in Figs 104, 105.Free State

Rhus lancea

Fig. 114. Distribution of (circles) and N. horizontalis (squares) in South Africa. Solid

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North West

(2009a

Fig. 115. Distribution of in South Africa. Solid circles indicate published records and open

93

Pellenes Simon, 1900Aranea tripunctata

This large genus contains about eighty species distributed mainly in the Palaearctic

the present paper belong to the subgenus Pelmutus (Logunov et al. 1999).

Pellenes (Pelmutus) bulawayoensis

Pellenes bulawayoensis b

Male.

Female.

(Fig. 121). Internal structure as in Fig. 122.Free State

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Rhus lancea

Pellenes bulawayoensis

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& R. Poller

Acacia karroo

(MRAC, 230332);

North West

ping surveys.

Pellenes (Pelmutus)

et al.

Salticus simoniPellenes simoni

(Fig. 124) distinctly different to South African congeners. Epigyne typical for the genus,

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Free State

Acacia karroo

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Pellenes (Pelmutus) modicus

Pellenes modicus

Pellenes bulawayoensis (circles) and (squares) in South Africa. Solid

AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

Male.

Pellenes modicus

internal structure of epigyne.

99

apophysis strongly sclerotized, long, adpressed in groove along posterolateral margin of

Female.

visible (Fig. 132).Free State

Rhus lancea

Pellenes species collected by pitfall traps in central South Africa.

Pellenes (Pelmutus) tharinaeFigs 112, 113

Pellenes tharinaePellenes pulcher b nec Logunov 1995).

112, 113.Free State

Rhus lancea

100 AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

site 3, Acacia karroo

Odontotermes

Fig. 133. Distribution of Pellenes modicus (circles) and P. tharinae (squares) in South Africa. Solid icon

101

pitfall trapping surveys but usually less abundant than P. bulawayoensis.

Attus fasciatus

135) P. etoshaP. karoo , male; (141, 142)

Pseudicius dependens sp. n., male (141) and female (142); (143, 144) sp. n., male (143) and female (144); (145) P. karinae, male. Scale bars = 1 mm.

102 AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

forming many loops, and small rounded receptacles.

Figs 134, 135Salticus bresnieri

sexes in Figs 134, 135.Free State

Themeda

by pitfall trapping. Ph. albostriata Simon, 1901, reported from South Africa and Mozambique,

Male.

103

Female.

other .Free State

structure of epigyne.

104 AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

congeners from central South Africa.

Figs 151–155.

105

Male.

153, 154). Apical part of embolus in Fig. 155.Female.

AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

Free State

Rhus lancea

Acacia karroo

Themeda

(circles), P. etosha (square) and P. karoo (diamonds) in South Africa.

107

North West

Northern Cape

spiders in central South Africa.

Euophrys simoniThis genus, related to the Palaearctic genus Philaeus

P. simoniP. lautissimum

near the base of fang.

Euophrys simonib

Male.

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109

additional semicircular lobe at base of embolus; embolus thin, very long, encircling

Free State

pitfall traps, 22.x–22.xi.2005, C. Haddad, S. Otto & R. Poller

Cumming (2011).

PseudiciusAranea encarpata

Pseudicius. The

Pseudicius dependens sp. n.

dependensthe male palpal cymbium.

a large distal cymbial lobe on the retrolateral side, and a serrate tibial apophysis. The female has an epigyne similar to P. africanus

Male.

110 AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

smaller rounded spots medially. Venter pale. Spinnerets grey. First pair of legs long and

Female.

Pseudicius dependens

111

accessory glands very large, spherical.Northern Cape

Free StateOlea europaea

Celtis africana

Northern Cape

Free State

(Haddad et al. 2005).

(circles) and Pseudicius dependens sp. n. (squares) in South Africa.

112 AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

Pseudicius gracilis sp. n.

(slender), referring to the shape of the spider’s body.

(single in ). Also similar to P. karinae

in front of the copulatory openings (at the lateral edges of the epigyne in ).

Male.

Female.

Free StateHaddad (NMBA, 14121).

Free StateAcacia karroo Willem

retreats constructed in thorns of Acacia eriolobain these thorns is interesting. When branches of these trees die off then

113

seminal duct.

foraging activity. The emergence holes of the ants in these dead thorns provide access points for other arthropods. Apart from the four sp. n. specimens, several Thaumastochilus termitomimusfrom these thorns.

114 AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

sp. n.

is short and blunt.

Male.

FemaleFree State

Eucalyptus (NMBA, 14123).

Pseudicius karinae

115

Eucalyptus trees.P. karinae is closely related to P. alter P. ele-

and P. venustulusP. alter and P. venustulus. It

P. karinaeP. solitarius

P. solitarius sp. n. is very different to that of P. alter and P. venustulus and the species

of some of the Pseudiciusthem as separate species until their matching sexes can be collected at the same locality

Pseudicius maculatus sp. n.

maculatusabdomen.

P. marshiP. maculatus

of P. africanus

Male.

surface.Female.

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Free State

Pseudicius maculatus P. solitarius sp. n., female; Rhene konradi

Tanzania meridionalis T. mkomaziensis, male; (190, 191) , male (190) and female (191); (192) T. natalii, female. Scale bars = 1 mm.

117

Pseudicius solitarius sp. n.

solitarius (alone, solitary), referring to the fact that the male

P. adustus

small spherical reservoirs.

Pseudicius maculatus

AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

Female.

situated laterally, further apart (Fig. 199). Internal structure of epigyne and course of seminal ducts in Figs 200, 201.Male

Free State

RheneRhanis

Rhene

Figs 199–201. Pseudicius solitariusgyne; (201) diagrammatic course of seminal duct.

119

accessory glands entering into the initial part of the seminal ducts.

Rhene konradi

Rhene konradi b

Male.

forming small patches in front of posterior lateral eyes and median stripe on thoracic

haematodocha clearly separated, embolus short (Fig. 203).

Fig. 202. Distribution of sp. n. (circles), P. karinae sp. n. (square), P. maculatus sp. n. (pentagon) and P. solitarius sp. n. (diamond).

120 AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

Female.

Rhene konradi

121

Free State

grassland.

Rhene lingularis sp. n.

bolus.

Male.

122 AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

FemaleFree State

Free State

TanzaniaLilliput mkomaziensis

The genus Lilliput

Tanzania, for the genus. The genus, closely related to EuophrysTalavera

Tanzania

Tanzania meridionalis sp. n.

meridionalis (southern), referring to the southern distribution of the species relative to that of the previously described congeners.

T. mkomaziensis, and may be distinguished from

Male.

123

clearly separated, embolus coiled, short (Figs 212, 214).

Figs 210–214. Tanzania meridionalis

124 AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

FemaleFree State

Free State22.xi–23.xii.2005, C. Haddad (NMBA, 14124).

pitfall trapping in grassland.

Tanzania mkomaziensis

Lilliput mkomaziensis

Tanzania mkomaziensis

Free State

species in the genus.

Fig. 215. Distribution of Rhene konradi (circles), sp. n. (squares), Tanzania meridionalis sp.n.(pentagon) and T. mkomaziensis

125

ThyeneAttus imperialis

Afrotropical Region. Members of Thyene are characterized by the presence of tufts of

very long accessory glands. Thyene species may be more easily distinguished by their colouration than by genitalic structures.

Figs 190, 191

Thyene squamulatab

both sexes in Figs 190, 191.Free State

Northern Cape

the Free State and Northern Cape Provinces in South Africa (Fig. 224).

and trees in savannah and forests, although generally uncommon. In pistachio orchards in the Northern Cape, fogging (Haddad et al. 2005).

Thyene nataliiFig. 192

Thyene natalii

Thyene strandiThyene natali

female in Fig. 192.Free State Province

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(Fig. 224).

Thyene

litter in the Free State before, and the female specimen presented here represents the

Thyene thyenioides (Lessert, 1925)

Paramodunda thyenioides bParamodunda thyeniformisThyene thyenioides

Thyene thyenoides Thyenula oranjensis,Tusitala barbata, male (220) and female (221). Scale

bars = 1 mm.

127

Female.

glands very long and thin.Free State

Themeda triandra

Themeda grassland,

North West

Northern Cape

Figs 222, 223. Thyene thyenoides

AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

is identical to the male of T. thyenioides

T. thyenioides is given here.

Thyenula Simon, 1902Thyenula juvenca Simon, 1902.

Thyenula oranjensis

Thyenula oranjensis

Fig. 224. Distribution of (circles), T. natalii (squares) and T. thyenoides (diamonds) in South

Africa.

129

KwaZulu-Natal

1500–1900 m.

TusitalaTusitala barbata

The genus includes nine species, all distributed in the Afrotropical Region. The males

Tusitala barbataFigs 220, 221

Tusitala barbata

Fig. 225. Distribution of Thyenula oranjensis (circles) and Tusitala barbata (squares) in South Africa. Solid

130 AFRICAN INVERTEBRATES, VOL. 52 (1), 2011

Monclova brauniTusitala emertoni b

sexes in Figs 220, 221.Free State

Eucalyptus

Northern Cape

and forest habitats, usually from the foliage stratum. The records presented here from

than initially suspected.

DISCUSSION

from central South Africa in earlier taxonomic publications. The large proportion of

South Africa has received in past Salticidae research, particularly revisionary studies. In

in the Afrotropical Region, namely Cyrba HeliophanusMenemerus a), Natta

contributed to a better understanding of the biogeography of South African Salticidae

prompts a brief discussion on their ecology and representation in spider communities.

Nature Reserve (Rhus lancea, R. ciliata and Acacia karroo), Fourie (2010) recorded only

Trinervitermes trinervoidesa

Themeda triandra grassland (Haddad 2005).

131

The more arid Nama Karoo Biome is nearly devoid of trees, except near rivers and

sandy soils. Studies on spider ecology in the Nama Karoo Biome are largely restricted

et al. 2004, b). In the only study in a natural habitat in

collected in a stand of undisturbed Nama Karoo grassland at the same locality (Haddad

Theridiidae and Linyphiidae are richer) and on the ground (richness dominated by

provides a taxonomic base for further investigations into the ecology, distribution and conservation importance of the family in this area.

provided permits for collecting spiders in Erfenis Dam Nat. Res., Sandveld Nat. Res.,

comments and suggestions that helped improve the manuscript.

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