Mago furcatus, Ruiz, 2017

Ruiz, Gustavo R. S., 2017, On four new species of the jumping spider genus Mago O. Pickard-Cambridge, 1882 from South America (Araneae: Salticidae), Zootaxa 4329 (6), pp. 584-593: 585

publication ID

https://doi.org/10.11646/zootaxa.4329.6.4

publication LSID

lsid:zoobank.org:pub:1D2B8E0B-06De-4D86-8170-D0Dce9F8A7E4

persistent identifier

http://treatment.plazi.org/id/6E5AF933-FFFF-FFDC-FF05-FB867F05F807

treatment provided by

Plazi

scientific name

Mago furcatus
status

sp. nov.

Mago furcatus   sp. nov.

Figs 1–2 View FIGURES 1 – 4 , 5–6 View FIGURES 5 – 8 , 9–11 View FIGURES 9 – 13 , 26 View FIGURE 26

Type material. Holotype: male from Río Bigal Reserve , Orellana, Ecuador (0.525– 0.527°S 77.418°W), 910–970 m elev., 01–05.XI.2010, W. & D. Maddison, M. Veja & M. Reyes leg. (UBC-SEM). GoogleMaps  

Etymology. The epithet, an adjective, refers to the shape of the embolic base, which has an additional prolateral apophysis   , becoming forked.

Diagnosis. This species seems to be closely related to Mago mimicus   sp. nov. In fact, their bodies are near identical (compare Figs 1–8 View FIGURES 1 – 4 View FIGURES 5 – 8 ). Also, both species have developed, acute RvTA pointing ventro-retrolaterally ( Figs 10–13 View FIGURES 9 – 13 ), not seen in any other species of the genus, and a subrectangular RTA. The male of M. furcatus   can be distinguished from that of M. mimicus   by the uncommon acute apophysis   on prolateral side of embolic base ( Figs 9–10 View FIGURES 9 – 13 ), absent in M. mimicus   .

Description. Male (holotype). Total length: 5.55. Carapace reddish dark brown with lighter area behind fovea ( Fig. 5 View FIGURES 5 – 8 ) holding a tuft of white scales ( Fig. 1 View FIGURES 1 – 4 ); 3.01 long, 2.08 wide, 1.71 high. Length of ocular quadrangle: 1.38; anterior eye row 1.94 wide, posterior 1.86 wide. No eyebrow or clypeal tuft ( Fig. 2 View FIGURES 1 – 4 ). Chelicera dark brown ( Figs 2 View FIGURES 1 – 4 , 6 View FIGURES 5 – 8 ), with no mastidion, but with keel along frontal border; two promarginal teeth, a line of about three subpromarginal minute teeth not overlapping prolateral teeth, and five separate retrolateral teeth; fang unmodified. Palp dark brown ( Figs 2 View FIGURES 1 – 4 , 6 View FIGURES 5 – 8 ); RTA and RvTA in right angle ( Fig. 11 View FIGURES 9 – 13 ); cymbium oval with retrolateral, proximal excavation; tegulum globose with tapering, curved embolus ( Fig. 10 View FIGURES 9 – 13 ). Sternum yellow. Leg I dark brown with tuft of white scales prolaterally on patella ( Fig. 2 View FIGURES 1 – 4 ) (apparently prolaterally also on mid tibia and mid metatarsus); II –IV with yellow femora and striped (brown/yellow) patellae, tibiae and metatarsi ( Figs 2 View FIGURES 1 – 4 , 6 View FIGURES 5 – 8 ). Leg formula: 4132. Length of femur I: 1.92; II: 1.36; III: 1.52; IV: 1.86; patella + tibia I: 1.89; II: 1.99; III: 2.01; IV: 2.14; metatarsus + tarsus I: 1.62; II: 1.48; III: 1.88; IV: 2.05. Abdomen dorsally brown with a pale longitudinal line of irregular borders ( Fig. 5 View FIGURES 5 – 8 ); scattered white scales ( Fig. 1 View FIGURES 1 – 4 ); ventrally with a black area surrounded by pale border ( Fig. 6 View FIGURES 5 – 8 ). Spinnerets brown. Female. Unknown.

Distribution. Known only from the type locality ( Fig. 26 View FIGURE 26 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Mago