Magnispina, Mendes, 2011

Mendes, Amanda Cruz, 2011, Phylogeny and taxonomic revision of Heteropachylinae (Opiliones: Laniatores: Gonyleptidae), Zoological Journal of the Linnean Society 163 (2), pp. 437-483 : 448

MAGNISPINA GEN. NOV.

Distribution: BRAZIL. Espírito Santo and Bahia. WWF Ecoregion NT0103, Bahia coastal forests.

Type species: Magnispina neptunus gen. et sp. nov., here designated.

Etymology: Genus name comes from the Latin magnus (large) + spina (thorn) in reference to the large median apophysis of free tergite II. Gender feminine.

Diagnosis: Three mesotergal areas; mesotergal area III with a pair of tubercles ( Fig. 3A ). Median apophysis of free tergite II robust and spiniform ( Fig. 3A, B, E, F ), at least twice the tergite length, tergite bearing a stout spiniform apophysis on each corner; free tergite III without a longitudinal keel, with posterior border convex and unarmed corners ( Fig. 3A ). Dorsal anal operculum with rounded tubercles ( Fig. 3F ). Ventral anal operculum with pair of tubercles irregularly shaped ( Fig. 3F ). Calcaneus I same colour as the astragalus and less than half metatarsus I length. Femur IV distinctly curved in dorsal view and with two curvatures (‘S-shaped’) in lateral view, bearing a large dorsobasal apophysis and a row of elongate, rounded tubercles on the prolateral margin, larger in the middle of the row ( Fig. 4 ). Male genitalia. Most basal seta of the distal group of setae larger than the others; dorsal digitiform process of glans present ( Fig. 12A, B ).

Figures

Figure 3. Magnispina neptunus gen. et sp. nov. A, C–F, male holotype IBSP1502. A, habitus, dorsal view; C, frontal view; D, patella and apex of femur IV; E, habitus, lateral view; F, ventroposterior view. B, female paratype IBSP 447. Habitus, dorsal view. Scale bars = 1 mm.

Figure 4. Magnispina neptunus gen. et sp. nov. Male holotype IBSP1502. A, left trochanter, femur and patella IV, dorsal view. B, right trochanter, femur and patella IV, ventral view. C, left trochanter, femur and patella IV, prolateral view. D, right trochanter, femur and patella IV, retrolateral view. Scale bars = 1 mm.

Figure 12. Male genitalia of species of the genera Magnispina and Pseudopucrolia. A, B, Magnispina neptunus gen. et sp. nov. Holotype IBSP 1502. A, dorsal view; B, lateral view. C, D, Pseudopucrolia incerta comb. nov. lectotype MNRJ 1507. C, dorsal view; D, lateral view. E, F, Pseudopucrolia discrepans comb. nov. MNRJ 41934. E, dorsal view; F, lateral view. G, H, Pseudopucrolia mutica. MNRJ 4965. G, dorsal view; H, lateral view. Scale bars = 0.1 mm.