Gephyrellula Strand, 1932

Santos, Fabricio H. & Rheims, Cristina A., 2018, Taxonomic revision of the genus Gephyrellula Strand, 1932 (Arachnida, Araneae, Philodromidae), Zootaxa 4527 (3), pp. 381-391 : 382-383

Genus Gephyrellula Strand, 1932

Gephyrella Mello-Leitão, 1918: 121 (type species: G. violacea Mello-Leitão , by monotypy). Mello-Leitão 1929: 107. Gephyrellula Strand, 1932: 137 (replacement name for Gephyrella Mello-Leitão , preoccupied in Lepidoptera ).

Diagnosis. Philodromid spiders with enlarged AME; elongated leg II; prosoma wider than long; clypeus low ( Table 1); leg formula 2134; spination of legs I–II: tibia ventral 2-2-0, pro- and retrolateral 0-1-1, metatarsus ventral 2-2-0, pro- and retrolateral 0-1-1; male palps with short, hook-shaped CoP ( Figs 8 , 11 , 20 ); female vulva with GH with long ducts ( Figs 14 , 23 ). Gephyrellula Strand belongs to the Ebo -like Philodromidae (sensu Muster 2009b) due to the eye configuration (AME larger than the other eyes and medians of both rows closer to laterals than to each other) and elongated leg II. They can be distinguished from Rhysodromus Schick, 1965 and Halodromus Muster, 2009b by lacking leg scopula, longer leg II and lower clypeus height (see Table 1); from Ebo Keyserling, 1884 by the presence of lateral spines on tibiae and metatarsi I–II (absent in Ebo ) and male palps with well-developed VTA and RTA (VTA indistinct and RTA weakly sclerotized in Ebo ); from Titanebo Gertsch, 1933 by the male palps with short, hook shaped CoP (absent in Titanebo ) and lower clypeus height (see Table 1).

Description. See redescription of G. violacea .

Distribution. Neotropical region, Brazil.

Composition. Monotypic: Gephyrellula violacea ( Mello-Leitão, 1918) .

Figures

FIGURES 6–9. Gephyrellula violacea (Mello-Leitão, 1918). 6–8 male (IBSP 29869), left palp (6 ventral, 7 RTA, detail, 8 conductor process, detail); 9 female (IBSP 37897), vulva, dorsal view. Scale lines: 6–7, 9: 100 µm, 8: 30 µm.

FIGURES 10–14. Gephyrellula violacea (Mello-Leitão). 10–12 male (IBSP 31185), left palp (10 prolateral, 11 ventral, 12 retrolateral); 13–14 female (IBSP 40421) (13 epigyne, 14 vulva). Scale lines: 0.5 mm.

FIGURES 19–23. Gephyrellula violacea (Mello-Leitão). 19–21 male (IBSP 35202), left palp (19 prolateral, 20 ventral, 21 retrolateral); 22–23 female (IBSP 29861) (22 epigyne, ventral, 23 vulva, dorsal). Scale lines: 0.5 mm.