Drassodella vasivulva Tucker, 1923

Mbo, Zingisile & Haddad, Charles R., 2019, A revision of the endemic South African long-jawed ground spider genus Drassodella Hewitt, 1916 (Araneae: Gallieniellidae), Zootaxa 4582 (1), pp. 1-62: 54-56

publication ID

https://doi.org/10.11646/zootaxa.4582.1.1

publication LSID

lsid:zoobank.org:pub:9DC61794-4BD7-4F6D-BB8C-84D9855C8151

persistent identifier

http://treatment.plazi.org/id/B74F87AB-9E54-4016-53B3-CACC66FE985F

treatment provided by

Plazi

scientific name

Drassodella vasivulva Tucker, 1923
status

 

Drassodella vasivulva Tucker, 1923 

Figs 4View FIGURES 1–4, 77View FIGURES 60–77, 92View FIGURES 78–92, 170, 171View FIGURES 157–171, 199–202View FIGURES 197–202

Drassodella vasivulva Tucker, 1923: 316  , fig. 42 (Holotype ♀: SOUTH AFRICA: Western Cape Province: Knysna, 33°02'S, 23°02'E, III.1896, leg. W.F. Purcell, SAMC ENW-X000876—examined).

Diagnosis. Females of D. vasivulva  are easily recognized by the narrow anterior hood and the posteriorly diverging median septum that takes the form of vase ( Figs 77View FIGURES 60–77, 199View FIGURES 197–202). Males of D. vasivulva  share with D. septemmaculata  the large median apophysis with a retrolaterally-directed basal process, but in D. vasivulva  the distal section has an almost perpendicular bend ( Figs 92View FIGURES 78–92, 201View FIGURES 197–202) while in D. septemmaculata  the distal end is rounded ( Figs 91View FIGURES 78–92, 195View FIGURES 193–196).

Description. Female (De Hoop Nature Reserve, NCA 2005/2341). Measurements: CL 2.56, CW 1.96, AL 3.28, AW 1.28, TL 6.00 (6.00–9.60), FL 0.30, SL 1.42, SW 1.25, CH 0.14, AME-AME 0.08, AME-ALE 0.02, ALE-ALE 0.25, PME-PME 0.10, PME-PLE 0.10, PLE-PLE 0.46, PERW 0.56, MOQAW 0.21, MOQPW 0.25, MOQL 0.28.

Length of leg segments: I 1.80 + 0.92 + 1.30 + 1.24 + 1.10 = 6.36, II 1.70 + 0.84 + 0.94 + 1.20 + 1.02 = 5.70, III 1.56 + 0.76 + 1.00 + 1.40 + 1.04 = 5.76, IV 2.26 + 0.98 + 1.72 + 2.40 + 1.22 = 8.58.

General appearance as in Fig. 170View FIGURES 157–171. Carapace dark brown, with black mottling radiating from fovea; upsilon marking of feathery setae originating from AME towards posterior margin, diverging after fovea. Clypeus height equal to 1.75 AME diameter; AME smaller than ALE; AME separated by distance equal to their diameter, AME separated from ALE by distance equal to 0.25 AME diameter; PME smaller than PLE; PME separated by distance equal to 1.67 their diameter, PME separated from PLE by distance equal to 1.67 PME diameter. Chelicerae darkbrown; promargin with three teeth, median tooth largest, proximal and distal teeth subequal; median and proximal teeth close together, distal tooth widely separated from median tooth; retromargin with two widely spaced subequal teeth. Endites dark brown, light brown at maxillar hair tuft. Labium dark brown, anterior margin light brown. Sternum brown. Legs with dark brown proximal segments, with black mottling, distal segments yellow; ventral side of femora I yellow. Leg spination: femora: I do 2 rl 1, II do 2 rl 1, III do 6, IV do 5; patellae: spineless; tibiae: I & II spineless, III pl 2 do 2 rl 2 plv 2 rlv 2 vt 2, IV pl 2 do 2 rl 2 plv 2 rlv 2 vt 2; metatarsi: I & II spineless, III pl 2 do 2 rl 2 plv 2 rlv 2 vt 2, IV pl 4 do 2 rl 4 plv 2 rlv 2 vt 2; palpal spination: femora do 3 rl 1; patellae rl 1; tibiae do 2 rl 3; tarsi pl 1 do 2 rl 3 plv 1 rlv 1. Abdomen black, dorsum with white feathery setae forming three pairs of white markings dorsolaterally, single spot above spinnerets; anterior markings an elongate stripe to one-third abdomen length, contiguous with elongate second markings, third pair isolated subtriangular stripe posterolaterally ( Fig. 170View FIGURES 157–171); venter grey, with faint black mottling; lateral sclerites elongate, post-epigastric sclerites small; two paired rows of tiny sclerites from epigastric fold to spinnerets. Spinnerets pale. Epigyne with small shallow strongly recurved anterior hood, lateral ends terminating abruptly; lateral margins of median septum initially close together, gradually diverging to wider than spermathecal margins, posterior quarter converging at epigastric furrow; ST I and ST II yellow, connecting ducts dark orange-brown; ST II teardrop-shaped, directed anteromedially, separated by one-and-a-half times their width; ST I as large as head of ST II ( Figs 77View FIGURES 60–77, 199, 200View FIGURES 197–202).

Male (De Hoop Nature Reserve, NCA 2005/2341). Measurements: CL 2.96, CW 2.38, AL 3.00, AW 1.72, TL 5.92 (5.92–8.06), FL 0.54, SL 1.56, SW 1.44, CH 0.14, AME-AME 0.10, AME-ALE 0.03, ALE-ALE 0.32, PME-PME 0.17, PME-PLE 0.14, PLE-PLE 0.51, PERW 0.67, MOQAW 0.25, MOQPW 0.30, MOQL 0.33.

Length of leg segments: I 2.04 + 1.08 + 1.62 + 1.52 + 1.20 = 7.46, II 1.96 + 1.02 + 1.38 + 1.48 + 1.16 = 7.00, III 1.82 + 0.90 + 1.20 + 1.68 + 1.16 = 6.76, IV 2.58 + 1.04 + 1.82 + 2.76 + 1.40 = 9.60.

General appearance as in Figs 4View FIGURES 1–4 and 171View FIGURES 157–171. Carapace dark brown, with dense black mottling; upsilon marking of feathery setae originating from AME towards posterior margin, diverging after fovea. Clypeus height equal to 2.33 AME diameter; AME smaller than ALE; AME separated by distance equal to 1.25 their diameter, AME separated from ALE by distance equal to 0.38 AME diameter; PME smaller than PLE; PME separated by distance equal to 2.83 their diameter, PME separated from PLE by distance equal to 2.33 PME diameter. Chelicerae dark brown, with dense black mottling; promargin with three teeth, median tooth very large, proximal and distal teeth small, proximal tooth smallest; median and proximal teeth close together, distal tooth widely separated from median tooth; retromargin with two widely spaced teeth, proximal tooth larger. Endites dark red-brown, with black mottling, cream at maxillar hair tuft. Labium dark brown, anterior margin brown. Sternum with many erect setae laterally, few setae medially. Legs with proximal segments deep red-brown, distal segments orange-brown. Leg spination: femora: I do 2 rl 1, II do 2 rl 1, III do 4, IV do 4; patellae: spineless; tibiae: I & II spineless, III pl 2 do 1 rl 2 plv 2 rlv 2 vt 2, IV pl 2 do 2 rl 2 plv 2 rlv 2 vt 2; metatarsi: I spineless, II pl 1 rl 1, III pl 4 rl 4 plv 2 rlv 2 vt 2, IV pl 4 rl 4 plv 1 rlv 2 vt 2; palpal spination: femora do 3 rl 1; patellae do 1; tibiae pl 2 rl 2; tarsi do 2. Abdomen black, with deep orange scutum extending third abdomen length; dorsum with white feathery setae forming three pairs of white markings dorsolaterally, single spot above spinnerets; anterior markings an elongate stripe to onethird abdomen length, briefly separated from elongate-oval second markings, third pair isolated bilobed stripe posterolaterally ( Fig. 171View FIGURES 157–171); venter creamy-grey, with faint grey mottling; elongate sclerite on lateral sides above booklungs; post-epigastric sclerites small; two paired rows of tiny sclerites running from epigastric furrow posteriorly, lateral pair reaching spinnerets, median row to half abdomen length. Palp dark yellow-brown; RTA long, entirely obscured in ventral view by retrolateral heel of cymbium; in retrolateral view subtriangular, elongate, with narrow base and sharp tip; cymbium narrow, 2.03 times longer than wide, narrowed to rounded point distally; embolus originating prolaterally, elongate, slightly undulating, with stout sharp tip directed retrodistally; median apophysis massive, weakly sclerotized; basal section subtriangular, with right-angled bend distally, thumb-shaped tip directed prolaterally, partly obscuring embolus ( Figs 92View FIGURES 78–92, 201, 202View FIGURES 197–202).

Additional material examined. SOUTH AFRICA:GoogleMaps  Western Cape Province: Cape Town, Muizenberg, 34°06'S, 18°27'E, 1989, leg. R. Legg (pitfalls), 6♀ ( MRAC 209560View Materials); Same   GoogleMaps locality, 5.V.1991, leg. R. Legg (dunes to the north), 8♀ ( MRAC 173712View Materials); Same data as previous butGoogleMaps  19.V.1991, 4♀ ( MRAC 173721View Materials); Same data as previous butGoogleMaps  2. VI.1991GoogleMaps  , 3♀ ( MRAC 173744View Materials); Same data as previous but 16. VI.1991GoogleMaps  , 3♀ ( MRAC 173759View Materials); Same data as previous but 29.IX.1991, 1♀ ( MRAC 174637View Materials); De Hoop Nature Reserve, Koppie Alleen , 34°28.534'S, 20°30.349'EGoogleMaps  , 26. VII.2005  , leg. C. Haddad (milkwood leaf litter), 1♀ ( NCA 2005 /2341); Same locality, 7. IV.2004  , leg. C. Haddad (coastal dune, under Thamnochortis sedges), 4♂ ( NCA 2005 /2010); Same locality, 5. IV.2004GoogleMaps  , leg. C. Haddad (under rocks in fynbos), 2♀ (SAMC ENW-C005350); De Hoop Nature Reserve, Potberg   GoogleMaps, 34°22.487'S, 20°31.980'E, 4. IV.2004GoogleMaps  , leg. C. Haddad (under logs, Eucalyptus  forest), 1♂ 1♀ 1 imm. ( NCA 2005 /589); De Hoop Nature Reserve, Lekkerwater   GoogleMaps road, 34°24.002'S, 20°33.151'E, 26. III.2004  , leg. C. Haddad (active search, under Thamnochortis), 1♂ ( NCA 2013/5340); Same locality, 6. IV.2004GoogleMaps  , leg. C. Haddad ( Eucalyptus  leaf litter), 1♂ ( NCA 2013/5341); Kogelberg Biosphere Reserve, Kogelberg Valley   GoogleMaps, 34°19.200'S, 18°57.600'E, 22. III.2008GoogleMaps  , leg. B. Mbinka (on leaves in fynbos), 1♀ ( NCA 2010 /2085); Moordkuil Valley   GoogleMaps, 34°04'S, 22°07'E, 10–21. III.1986  , leg. M. MacPherson & A. Roux, 3♀ (SAMC ENW-C003363).

Distribution. Known from several localities in the Western Cape, South Africa ( Fig. 203View FIGURE 203).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Gallieniellidae

Genus

Drassodella

Loc

Drassodella vasivulva Tucker, 1923

Mbo, Zingisile & Haddad, Charles R. 2019

2019
Loc

Drassodella vasivulva

Tucker, R. W. E. 1923: 316