Micariabispicula, Booysen & Haddad, 2021

Booysen, Ruan & Haddad, Charles R., 2021, Revision and molecular phylogeny of the spider genus Micaria Westring, 1851 (Araneae: Gnaphosidae) in the Afrotropical Region, Zootaxa 4940 (1), pp. 1-82: 37-38

publication ID

https://doi.org/10.11646/zootaxa.4940.1.1

publication LSID

lsid:zoobank.org:pub:5F073867-F6EA-4222-A190-77F68076BE9C

DOI

http://doi.org/10.5281/zenodo.4681002

persistent identifier

http://treatment.plazi.org/id/03AC3314-9C16-FFE3-7CBD-FE4DFDE6F8A1

treatment provided by

Plazi

scientific name

Micariabispicula
status

sp. nov.

Micariabispicula   sp. nov.

Figs 15–16 View FIGURES 9–17 , 57 View FIGURES 55–60 , 67 View FIGURES 65–71 , 121–124 View FIGURES 121–124

Type material: Holotype: ♀, SOUTHAFRICA: Western Cape: Hermanus, Fisherhaven , 34°21.430’S, 19°07.557’E, leaf litter, leg. C. Haddad, 12.I.2008 (NCA 2008/453). GoogleMaps  

Paratypes: NAMIBIA: Kunene Region: Brandberg, Gravel plain, pitfall row 3, pitfall traps, 2120 m a.s.l., 21°10.5’S, 14°33.667’E, leg. K. Meaking / Raleigh International, 12.IV.2000, 1 ♂ ( SMN 45032 View Materials ). GoogleMaps   SOUTH AFRICA: Northern Cape: Douglas , under rocks, hand collecting, 1025 m a.s.l., 29°04.266’S, 23°47.951’E, leg. C. Haddad, 2.IV.2001, 1 ♂ (NCA 2017/1482); GoogleMaps   Hay, Farm Rooipan, in the day, under rocks, hand collecting, 29°04.2’S, 23°04.8’E, leg. L.N. Lotz, 6.XII.2006, 1 ♀ (NMBA 10306) GoogleMaps   . Western Cape: Buffels Bay, Cape of Good Hope , 34°11.4’S, 18°15.6’E, leg. C. Griswold, J. Doyen & T.M. Griswold, 25–29.X.1985, 1 ♂ ( NMSA 22447); GoogleMaps   Cape Peninsula, Muizenberg, Dunes to the north, pitfall traps, 34°06’S, 18°27’E, leg. R. Legg, 1–15.XII.1991, 2 ♂ 1 ♀, with 2 non-type immatures (MRAC 173647) GoogleMaps   .

Other material examined: NAMIBIA: Kunene Region: Brandberg, Konigstein Farm , 22–day pitfall row, 2348 ma.s.l., 21°08.8’S, 14°34.283’E, leg. K. Meaking /Raleigh International, 17.V.2002, 1 ♂ ( SMN 45021 View Materials ); GoogleMaps   Konigstein Pan, 2340 ma.s.l., 7.V.2000, 10 ♂ ( SMN 45027 View Materials ); GoogleMaps   samelocality, 29.V.2000, 12 ♂ ( SMN 45014 View Materials ) GoogleMaps   ; SOUTH AFRICA: Northern Cape: Kalahari Gemsbok Park, Twee Rivieren, pitfalltraps, 26°15.6’S, 20°22.2’E, leg. E.A. Ueckermann & D. Keetch, 8–12.II.1987, 1 ♂ (NCA 87/531); GoogleMaps   Kathu, Farm Sacha, 27°42.500’S, 22°57.967’E, leg. C. Haddad, 24–27.II.2003, 1 ♂ (NCA 2017/1478); GoogleMaps   Prieska, Green Valley Nuts, Pistachio orchard, 29°40.8’S, 22°44.4’E, leg. C. Haddad, 18.IX.2001, 1 ♂ (NCA 2002/483) GoogleMaps   . Western Cape: Anysberg Nature Reserve, under rocks, handcollecting, leg. C. Haddad & R. Lyle, 23.IX.2005, 2 ♂ (NCA 2007/3982); GoogleMaps   samelocality, leg. C. Haddad, 23.IX.2005, 1 ♂ (NCA 2007/3963); GoogleMaps   Beaufort West , Farm 77, Karoo , Area 4, Site 2, pitfalltraps, 32°20.64’S, 23°21.24’E, leg. D.H. Jacobs, 12.XII.2007, 2 ♂ (NCA 2008/4699); GoogleMaps   Beaufort West , Farm Juriesfontein , Karoo , Area 3, Site 4, 32°31.8’S, 23°25.8’E, 11.XII.2007, 1 ♂ (NCA 2008/4701); GoogleMaps   Beaufort West , Farm Kraanvogelfontein , Karoo , Area 2, Site 3, 32°32.4’S, 22°59.04’E, 9.XII.2007, 1 ♂ (NCA 2008/4755); GoogleMaps   Beaufort West , Farm Nuwejaarsfontein, Karoo , Area 3, Site 1, 32°57.00’S, 23°23.4’E, 2.XII.2007, 1 ♂ (NCA 2008/4703); GoogleMaps   Beaufort West , Farm Vaalkuil , Karoo , Area 1, Site 4, 32°48.84’S, 22°46.92’E, 6.XII.2007, 1 ♂ (NCA 2008/4700); GoogleMaps   Karoo National Park , Sandrivier , running on ground (LR624), hand collecting, leg. J. Leroy, 6.X.1989, 2 ♀ 2 immatures (NCA 91/700); GoogleMaps   Brand se Baai , NDC3, pitfall traps, leg. C. Lyons, 22.XI.2007, 1 ♀ (NCA 2008/1984); GoogleMaps   Cape Town , Bergvliet Flats , Diep Rivier , 34°03.00’S, 18°27.00’E, leg. W.F. Purcell, XII.1899, 1 ♂ (SAM 6236); GoogleMaps   Cederberg Wilderness Area , pitfalltraps, 1–1298 ma.s.l., 32°20.82’S, 19°08.1’E, leg. E. Nortje & S. Kritzinger-Klopper, 1.III.2010, 1 ♂ (NCA 2012/5050); GoogleMaps   Cederberg, Niewoudt’s Pass, 3–551 ma.s.l., 32°20.94’S, 19°00.36’E, 1.I.2009, 1 ♂ (NCA 2011/2693); GoogleMaps   Cederberg, Niewwoudt’s Pass, 3–344 ma.s.l., 32°20.28’S, 18°59.28’E, 1.X.2009, 1 ♂ (NCA 2011/2695); GoogleMaps   Cederberg, Niewwoudt’s Pass, 3–551 ma.s.l., 32°20.94’S, 19°00.36’E, 1 ♂ (NCA 2011/2694); GoogleMaps   Cederberg, Sawadee, 3– 344m asl, 32°20.28’S, 18°59.28’E, 1 ♂ (NCA 2012/3549); GoogleMaps   Tierberg, leg. R. Dean, 14.IV.1998, 1 ♀ (NCA 91/1220); GoogleMaps   Victoria West , Melton Wold (83.5 km West of Victoria West), pitfall traps, 31°16.2’S, 22°27.00’E, leg. Entomol. Staff, III–VII.1989, 1 ♂ (NMBA 8619) GoogleMaps   .

Etymology. The species name is a combination of the Latin prefix bi (two) and spicula (spines). It refers to the two retrolateral tibial apophyses that are located on the dorsal side of the palpal tibia in the males of this species.

Diagnosis. Females of this species can be distinguished from other Afrotropical species by having deeply notched copulatory openings, a continuously curved anterior hood, and short copulatory ducts. The males have two dorsal retrolateraltibial apophyses, located dorsally on the palpal tibia.

Description. Female (holotype from Fisherhaven, NCA 2008/453): Measurements: TL 3.65, CL 1.65, CW 0.95, CL:CW 1.74, CLH 0.14, CLH:AME 1.97. Eyes: ALE 0.06, AME 0.07, PLE 0.06, PME 0.06, AME–AME 0.02, PME–PME 0.07, MOQAW 0.16, MOQPW 0.20, MOQL 0.21. SL 0.86, SW 0.65, AL 2.10, AW 1.10. Leg measurements: Palpal segment lengths: 0.48, 0.26, 0.27, 0.48. Leg I: 0.86, 0.33, 0.62, 0.56, 0.62. II: 1.10, 0.33, 0.76, 0.71, 0.78. III: 1.00, 0.46, 0.78, 0.76, 0.72. IV: 1.52, 0.51, 1.22, 1.37, 0.92. TLoflegs (I–IV): 2.99, 3.68, 3.72, 5.54; leg formula: 4321.

Colouration: carapace dark brown; abdomen dark brown to black; sternum, labium, endites, and chelicerae similar in colour to carapace; legs Iand II with femora darkened, legs III and IV uniform in colour ( Fig. 15 View FIGURES 9–17 ).

Carapace: decorated with squamose setae; smooth in texture; pattern indistinct, radiating from middle towards coxae; two white lines present on posterior third of carapace; fovea absent; posterior margin indented medially; anterior margin of carapace narrowing from coxa I; PER procurved in dorsal view; AER recurved in anterior view.

Chelicerae: decorated with plumose setae. Labium: triangular in shape; cluster of setae present on tip. Endites: oblique; constricted just above halfway; anterior margin rounded; cluster of setae present on inner–apical margin.

Sternum: shield-like; broadest between coxa Iand II; posterior margin tapered to point between coxa IV. Legs: femora laterally flattened, highest at base, leg Imore pronounced in this fashion; rest of legs normal, thin; all tarsi pseudo–segmented. Leg macrosetae: Palps: 1do, 5plv, 1pl, 1do, 1pl, 1rl, 2plv, 1rlv, 4vt. Leg I: 1do, 1pl, 2plv, 2vt. II: 1do, 2plv, 1rlv, 1vt. III: 1do, 1pl, 2pl, 1rl, 2plv, 2rlv, 2vt, 1pl, 1rl, 2plv, 2rlv, 4vt. IV: 1do, 2pl, 2rl, 2plv, 2rlv, 2vt, 1pl, 1rl, 2plv, 2rlv, 4vt. Legs I–IV with two rows of scopulate setae on metatarsi and four rows on tarsi. Abdomen: cylindrical in shape; decorated with squamose setae; dorsal pattern forming solid white transverse band medially on abdomen and longitudinal dotted perpendicular to former; venter similar in colour to dorsum, one lateral white stripe present anteriorly; sigilla not visible. Epigyne: in ventral view, anterior hood continuous, “M” shaped, generally recurved; posterior pockets present medially, crescent–shaped; copulatory opening bifurcated at tip. In dorsal view, copulatory duct briefly extending posteriorly, connecting to inner apical margin of spermathecae; fertilisation ducts present on inner basal margin of spermathecae, curved laterally; spermathecae globular, with flattened interior margin ( Figs 121, 122 View FIGURES 121–124 ).

Male (paratype from Douglas, South Africa, NCA 2017/1482): Measurements: TL 4.15, CL 2.00, CW 1.18, CL:CW 1.70, CLH 0.16, CLH:AME 2.03. Eyes: ALE 0.08, AME 0.08, PLE 0.06, PME 0.05, AME–AME 0.04, PME–PME 0.10, MOQAW 0.19, MOQPW 0.23, MOQL 0.24. SL 0.90, SW 0.71, AL 2.25, AW 1.25. Leg measurements: Palpal segment lengths: 0.78, 0.41, 0.44, 0.60. Leg I: 1.70, 0.73, 1.52, 1.14, 1.10. II: 1.55, 0.65, 1.25, 1.03, 1.03. III: 1.40, 0.63, 1.18, 0.98, 0.83. IV: 2.03, 0.71, 1.64, 1.70, 1.15. TLoflegs (I–IV): 6.19, 5.51, 5.02, 7.23; leg formula: 4123.

Colouration: carapace light brown; abdomen dark brown or black; sternum similar in colour to carapace; labium, endites and chelicerae slightly darker than carapace in preserved specimens; legs Iand II with femora darkened, legs III and IV uniform in colour ( Fig. 16 View FIGURES 9–17 ). Carapace: decorated with squamose setae; smooth in texture; indistinct dark pattern radiating from middle towards coxae; posterior margin indented medially; anterior margin narrowing from coxa I; PER procurved in dorsal view; AER recurved in anterior view; eye region slightly elevated; fovea absent. Chelicerae: decorated with plumose setae. Labium: triangular in shape; cluster of setae present at tip. Endites: slanting inwards towards base of chelicerae; constricted just above halfway; anterior margin flattened; cluster of setae present on inner–apical margin. Sternum: shield-like; broadest between coxa Iand II; posterior margin tapered to point between coxa IV. Legs: femora laterally flattened, highest at base, leg Imore pronounced in this fashion; rest of legs normal, thin; all tarsi pseudo–segmented; decorated with lanceolate setae. Leg macrosetae: Palps: 1do, 1pl, 1do, 1pl, 1pl, 4vt. Leg I: 1do, 1pl, 2plv. II: 1do, 2pl, 2plv, 1vt. III: 2do, 1pl, 1rl, 1do, 2pl, 2rl, 2plv, 2rlv, 2vt, 1pl, 1rl, 2plv, 2rlv, 4vt. IV: 2do, 2rl, 2pl, 2rl, 2plv, 2rlv, 2vt, 1pl, 1rl, 2plv, 2rlv, 4vt. Legs I–IV with two rows of scopulate setae on metatarsi and four rows on tarsi. Abdomen: cylindrical in shape; decorated with squamose setae; dorsal pattern similar to female, faded due to preservation; venter similar to female; sigilla not visible.

Palp: two RTAs present pre–apically on retrolateral margin, distal RTA shorter than proximal RTA, relative to tibial apex; median apophysis present on anterior half of tegulum, “C” shaped, broadened basally; sperm duct present on retrolateral margin of tegulum; embolus broadened basally, tip thin, curved retrolaterally; cymbium widest at basal third, tapering apically ( Figs 123, 124 View FIGURES 121–124 ).

Distribution. The distribution of M. bispicula   sp. nov. is confined to the more arid western parts of South Africa and southern Namibia ( Map 2 View MAP 2 ).

NMSA

South Africa, Kwa-Zulu Natal, Pietermaritzburg, Natal Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Gnaphosidae

Genus

Micaria