Syspira medialuna, Brescovit & Sánchez-Ruiz & Bonaldo, 2018

Brescovit, Antonio D., Sánchez-Ruiz, Alexander & Bonaldo, Alexandre B., 2018, On the spider genus Syspira Simon, 1895 (Araneae: Miturgidae) in the Caribbean: four new species from Dominican Republic, Zootaxa 4370 (1), pp. 57-66 : 62-63

publication ID

https://doi.org/ 10.11646/zootaxa.4370.1.4

publication LSID

lsid:zoobank.org:pub:E26250E2-0C8E-4463-8D32-2E56869F7627

DOI

https://doi.org/10.5281/zenodo.5973723

persistent identifier

https://treatment.plazi.org/id/03C7878E-FFCB-FF8E-6FA7-2AD3F52D836B

treatment provided by

Plazi

scientific name

Syspira medialuna
status

sp. nov.

Syspira medialuna View in CoL sp. nov

Figs 5A −D View FIGURE 5 , 6A −E View FIGURE 6 , 7 View FIGURE 7

Types. Holotype ♂ from Reserva Científica Ébano Verde , 19°1'56.8"N 70°32'30.9"W, 1029 m, Constanza, Province La Vega, Dominican Republic, 16‒17.IV.2015, A. Sánchez & J. Cabra ( IBSP 168415 View Materials ) GoogleMaps . Paratypes: 1♀ from the same locality, 16–17.IV.2015, A. Sánchez & J. Cabra ( IBSP 168416 View Materials ) GoogleMaps ; 1♀ with same data ( MNHNSD 09.1541 View Materials ) GoogleMaps .

Other material examined. Dominican Republic. Province La Vega, Constanza, Reserva Científica Ébano Verde, 19°1'56.8"N 70°32'30.9"W, 1029 m, 1♀, 16–17.IV.2015, A. Sánchez & J. Cabra ( IBSP 168417 View Materials ; for SEM). GoogleMaps

Etymology. The specific name alludes to the half-moon shape (media luna in Spanish) of the retrolateral cymbial groove in the male palp. Media Luna is also a delicacy typical from Argentina, especially from Buenos Aires, which are very appreciated by the authors.

Diagnosis. Males of Syspira medialuna are easily distinguished from other Dominican species by the short, truncated tip of the retrolateral tibial apophysis and by the relatively small median apophysis ( Figs 5A‒B View FIGURE 5 ). Females are distinguished from other Dominican species by the epigynal plate projected medially, with rounded anterior borders ( Figs 5C View FIGURE 5 , 6E View FIGURE 6 ).

Description. Male (Holotype). Coloration as in Syspira cimitarra . Total length 10.2, carapace length 4.9, width 3.8. Eye diameters: AME 0.21, ALE 0.24, PME 0.23, PLE 0.22. Chelicerae 1.6 long, with 3 promarginal and 2 retromarginal teeth ( Fig. 6A View FIGURE 6 ). Leg measurements: femur I—4.5; II—4.3; III—3.9; IV—5.1. Leg spination: Itibia v2-2 -2, p0, r1-1-0, d0; metatarsus v2-2 -0, p0, r1-1-0, d0; II—tibia v2-2 -2, p0, r1-1-0, d0-2-0, metatarsus v2-2 - 0, p0-1-0, r1-1-0, d0-2-0; III‒IV—tibia v2-2 -2, p1-1-0, r1-1-0, d1-1-0, metatarsus v2-2 -2, p1-1-1, r1-1-1, d1-1-2. Palp: cymbial groove half-moon shaped, distally closed, touching ventral margin of cymbium; retrolateral tibial apophysis short and truncated distally; median apophysis small, cup-shaped; distal projection of embolar base curved and sharp at tip; embolar base covered by sub-quadrangular ventral tegular process, directed proximally ( Fig. 4A −B View FIGURE 4 ).

Female (Paratype, IBSP 168416). Coloration as in male, except palp, orange. Abdomen with dorsal white spots and ventrally orange, including the spinnerets. Total length 10.7, carapace length 5.2, width 3.8. Eye diameters: AME 0.21, ALE 0.21, PME 0.25, PLE 0.24. Chelicerae 2.3 long, with teeth as in male ( Fig. 6B View FIGURE 6 ). Leg measurements: femur I—3.9; II—3.8; III—3.4; IV—4.5. Tricobothrium capsulated, striated transversally ( Fig. 6D View FIGURE 6 ). Palp haired distally ( Fig. 6C View FIGURE 6 ), spination: patella p1; tibia p2-1-0, d1-1-0; tarsus p1-0-0, r1-1-0, d1-0-0. Leg spination: I—tibia v2-2 -0, p0, r0, d0, metatarsus v2-2 -2, p0, r0, d0; II—tibia v1 r-1r-2, p0, r0, d0, metatarsus v2-2 - 0, p0, r0, d0; III—tibia v2-2 -2, p1-1-0, r1-1-0, d1-1-0, metatarsus v2-2 -1, p1-1-0, r1-1-0, d2-2-0; IV—tibia v2-2 -2, p1-1-0, r1-1-0, d1-1-0, metatarsus v2-2 -2, p1-1-1, r1-1-1, d2-2-2. Epigynum: Atrium small, triangular; primary spermathecae small and rounded; secondary spermathecae globose and very small; copulatory ducts very long and coiled; fertilization ducts narrow and larger than primary spermathecae ( Figs 5C −D View FIGURE 5 ; 6E).

Distribution. Known only from Province La Vega, Dominican Republic ( Fig. 7 View FIGURE 7 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Miturgidae

Genus

Syspira

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