Revision and molecular phylogeny of the spider genus Micaria Westring, 1851 (Araneae: Gnaphosidae) in the Afrotropical Region Booysen, Ruan Haddad, Charles R. Zootaxa 2021 2021-03-04 4940 1 1 82 98Z5R Booysen & Haddad, 2021 Booysen & Haddad 2021 [151,390,1616,1643] Arachnida Gnaphosidae Micaria Animalia Araneae 33 34 Arthropoda species bimaculata sp. nov.   Figs 13–14, 117–120   Type material:   Holotype: ♀,  MAURITANIA:  Nouakchott Region: Nouakchott, 31 km South of Nouachott, hand collecting, 18°04.862’N, 15°57.975’W, leg. F. Borgato,  XI.1994(CAS, CASENT 9078556).   Paratypes:1 ♂, same data as holotype (CASENT 9078556).   Etymology.The name of this species is derived from the two Latin words bi(two) and maculata(spot), and refers to the two large white spots on the midline of the abdomen in both the males and females of this species.   Diagnosis.  Micaria bimaculata  sp. nov.can be distinguished from other Afrotropical  Micariain bearing two large white spots on the abdomen in both sexes. Furthermore, this species’ females can be distinguished from  M. gomeraeStrand, 1911in having copulatory ducts that are thicker and separated by their width. The males of  M. bimaculata  sp. nov.differ from  M. gomeraemales in have a shorter embolus that curves retrolaterally, at a right angle, at half the length of the embolus. Furthermore, the median apophysis is shorter and thicker than that of  M. gomerae(figs 63a-gin Wunderlich 1980).   Description. Female ( holotypefrom Nouakchott, CASENT 9078556): Measurements:TL 3.75, CL 1.35, CW 0.95, CL:CW 1.42, CLH 0.10, CLH:AME 1.20. Eyes: ALE 0.06, AME 0.08, PLE 0.06, PME 0.06, AME–AME 0.04, PME–PME 0.07, MOQAW 0.18, MOQPW 0.19, MOQL 0.19. SL 0.78, SW 0.57, AL 2.15, AW 1.45.  Legmeasurements:Palpal segment lengths: 0.44, 0.19, 0.25, 0.43. LegI: 0.97, 0.30, 0.49, 0.41, 0.64. II: 0.95, 0.29, 0.50, 0.40, 0.64. III: 0.87, 0.38, 0.65, 0.73, 0.59. IV: 1.40, 0.46, 0.98, 1.19, 0.87. TLoflegs (I–IV): 2.81, 2.78, 3.22, 4.90; leg formula: 4312.   FIGURES 117–120.Genital morphology of  Micaria bimaculata  sp. nov.: 117 female epigyne, ventral view; 118 female epigyne, dorsal view; 119 male palp, ventral view; 120 same, retrolateral view. Scale bars: 0.1 mm.  Colouration:carapace brown; abdomen brown on anterior half and dark brown on posterior half; legs uniform in colour (femora may be darker in live specimens); sternum, endites, labium and chelicerae similar in colour to carapace ( Fig. 13). Carapace:smooth in texture; decorated with squamose setae; pattern faded but seems to be radiating from middle; posterior margin indented medially; anterior margin of carapace narrowing slightly from coxa I; PER procurved in dorsal view, AER recurved in anterior view; fovea absent. Chelicerae:decorated with plumose setae; apical margin slightly thickened. Labium:dark spots in posterior corners; triangular in shape; tuft of setae present at tip. Endites:slanting inwards, constricted just above halfway; cluster of setae present on inner–apical margin. Sternum:darkened ridges; shield-like; broadest between coxa Iand II; posterior margin truncated between coxa IV. Legs:femora laterally flattened, highest at base, leg Imore pronounced in this fashion; rest of legs normal, thin. Legmacrosetae: Palps: 1do, 1pl, 1do, 1pl, 1pl, 2plv, 4vt. LegI: I 1do, 1pl, 2plv, 2vt. II: 2do, 1pl, 1rl, 2plv, 2vt. III: 2do, 1pl, 1rl, 2pl, 1rl, 2plv, 1rlv, 2vt, 2pl, 1rl, 2plv, 2rlv, 5vt. IV: 2do, 2pl, 2rl, 2plv, 4vt, 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 two large spots on transverse midline of abdomen ( Fig. 13); venter similar in colour to dorsum; sigilla not visible. Epigyne:in ventral view, anterior hood divided, curved; posterior pockets medially between spermathecae; copulatory openings globular. In dorsal view, copulatory ducts present medially on inner apical margin of spermathecae; fertilisation ducts present on basal interior margin of spermathecae, curved laterally; spermathecae globular ( Figs 117, 118).  Male. ( paratypefrom Nouakchott, CASENT 9078556):  Measurements:TL 3.25, CL 1.45, CW 1.05, CL: CW 1.38, CLH 0.13, CLH:AME 1.65. Eyes: ALE 0.06, AME 0.08, PLE 0.06, PME 0.06, AME–AME 0.02, PME– PME 0.10, MOQAW0.19, MOQPW 0.21, MOQL 0.22. SL 0.74, SW 0.59, AL 1.60, AW 1.10.  Legmeasurements: Palpalsegment lengths: 0.49, 0.29, 0.30, 0.38. LegI: 1.48, 0.49, 0.95, 0.81, 0.78. II: 1.13, 0.48, 0.81, 0.73, 0.78. III: 0.94, 0.44, 0.83, 0.92, 0.76. IV: 1.46, 0.46, 1.16, 1.19, 0.94. TLoflegs (I–IV): 4.51, 3.93, 3.89, 5.21; leg formula: 4123.   MAP 2.The distribution of  Micariabimaculata  sp. nov.(black circle) and  M. bispicula  sp. nov.(red stars) in the Afrotropical Region.  Colouration:carapace dark brown; abdomen brown on anterior half and dark brown on posterior half; femora darkened partially, rest of legs normal in colour; sternum, endites, labium and chelicerae similar in colour to carapace ( Fig. 14). Carapace:smooth in texture, decorated with squamose setae; pattern faded, but radiating from middle towards coxae, posterior margin similar to female; fovea absent; anterior margin of carapace narrowing slightly from coxa I; PER procurved in dorsal view, AER recurved in anterior view. Chelicerae:decorated with plumose setae; apical margin slightly thickened. Labium:dark spots in posterior corners; triangular in shape; tuft of setae present at tip. Endites:slanting inwards, constricted just above halfway; cluster of setae present on inner–apical margin; apical margin flattened; posterior margin bulbous. Sternum:darkened ridges; shield-like; broadest between coxa Iand II; posterior margin narrowly truncated between coxa IV. Legs:femora laterally flattened, highest at base, leg Imore pronounced in this fashion; rest of legs normal, thin. Legmacrosetae: Palps: 1do, 1pl, 1do, 1pl, 1pl, 1plv, 4vt. LegI: 1do, 1pl. II: 2do, 2pl, 2plv, 2vt. III: 2do, 2plv, 1rl, 2pl, 2rl, 2plv, 2rlv, 2vt, 1pl, 1rl, 2l, 1rl, 4vt. IV: 2do, 1rl, 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 two large spots on transverse midline of abdomen ( Fig. 14); venter similar in colour to dorsum; sigilla not visible. Palp:retrolateral tibial apophysis present dorsally; median apophysis present next to embolus; median apophysis broad, elongate, bending prolaterally, skewed diagonally; sperm duct present on retrolateral surface of tegulum, curved basally; sperm duct “S” shaped before ending at embolus; embolus broad at base, strongly curved retrolaterally, tip elongate; cymbium elongate, widest near middle; cymbial tip rounded, two small spines ventrally on tip; three ventralterminalspinesinfrontof embolus ( Figs 119, 120).   Distribution.  Micaria bimaculata  sp. nov.is only known from the typelocality ( Map 2). 3071034393 1994-11 F. Borgato Mauritania 18.081034 South of Nouachott 1 -15.96625 33 34 1 1 Nouakchott holotype 3071034304 MOQAW 35 36 Palpal 34 35 1 Lakes