Amphidraus draconitupan, Salgado & Ruiz, 2019

Salgado, Alexandre & Ruiz, Gustavo R. S., 2019, Seven new species of Amphidraus Simon, 1900 (Araneae: Salticidae: Euophryini), Zootaxa 4563 (3), pp. 451-481: 472-474

publication ID

https://doi.org/10.11646/zootaxa.4563.3.3

publication LSID

lsid:zoobank.org:pub:86E75433-D91B-48E5-9807-9A0A460EFCB3

persistent identifier

http://treatment.plazi.org/id/03F987C0-8A67-0165-3AEE-8D66FAAA4F4E

treatment provided by

Plazi

scientific name

Amphidraus draconitupan
status

sp. nov.

Amphidraus draconitupan   sp. nov.

Figs 23 View FIGURE 23 A–G, 24A–D, 25A–D, 30

Type material. Holotype: GoogleMaps   ♂ from Fazenda Palma   GoogleMaps , Varpa, 22°05'44.4"S, 50°30'07.9"W, Tupã, São Paulo, Brazil, XII.2016, G.R.S Ruiz leg. ( MPEG 35022 View Materials ). Paratypes: 1♂ from Cachoeira Eubiose , 21°43'33.9"S, 44°57'36.0"W, São Thomé das Letras, Minas Gerais, Brazil, XII.2017, A. Salgado leg. ( MPEG 35016 View Materials ) and GoogleMaps   2♀, same data as holotype ( MPEG 35017 View Materials , 35028 View Materials ) GoogleMaps   .

Additional material examined. BRAZIL: Mato Grosso do Sul: GoogleMaps   1♂, Brasilândia, Usina Hidrelétrica Sérgio Motta [21°16’22.7”S, 51°55’52.5”W], 2000, Equipe IBSP leg. ( IBSP 30911 View Materials )   ; Minas Gerais: 1♀, São Thomé das Letras, Vale das Borboletas, 21°43'24.4"S, 45°00'24.4"W, XII.2017, A. Salgado leg. ( MPEG 35023 View Materials ) GoogleMaps   ; 1♂ and 2♀ from São Thomé das Letras, Cachoeira Eubiose, 21°43'33.9"S, 44°57'36.0"W, XII.2017, A. Salgado leg. ( MPEG 35024 View Materials ) GoogleMaps   ; São Paulo: 9♀, Tupã, Fazenda Palma, Varpa, 22°05'44.4"S, 50°30'07.9"W, XII.2016, G.R.S Ruiz leg. ( MPEG 35029–35031 View Materials ) GoogleMaps   .

Etymology. The specific epithet is a compound name that refers to the large projection of embolic disc (homologous to projection with dragon's tail shape of A. draconicaudatus   ) and the type locality (Tupã). The final - n is added in order to mimic phonetics of the name of the locality.

Diagnosis. The male of Amphidraus draconitupan   sp. nov. is most similar to those of A. draconicaudatus Salgado & Ruiz, 2017   and A. shenlong   sp. nov. by having an elongate and stout projection on the retrolateral border of the embolic disc that extends towards the retrolateral tegulum border ( Figs 22A View FIGURE 22 , 25A View FIGURE 25 , 26A View FIGURE 26 ). However, the male of A. draconitupan   sp. nov. differs from the males of these two species by having the superior border of its elongate projection of embolic disc with a rounded projection followed by several reduced spikes ( Figs 23D View FIGURE 23 , 25A View FIGURE 25 ), whereas in A. draconicaudatus   and A. shenlong   sp. nov. the rounded projection is absent and the elongate projections have several branches ( Figs 26 View FIGURE 26 A–F). The epigyne of A. draconitupan   sp. nov. is similar to that of A. draconicaudatus   , both with spermathecae kidney-shaped, with glands near to copulatory openings and with a narrow dorsal pocket placed posteriorly on epigynal plate ( Figs 25D View FIGURE 25 , 27E View FIGURE 27 ) (the female of A. shenlong   sp. nov. is still unknown). However, the female of A. draconitupan   sp. nov. can be distinguished from that of A. draconicaudatus   by having shorter copulatory ducts connected to spermathecae on its outer border ( Fig. 25D View FIGURE 25 ), whereas they connect to the inner posterior border in A. draconicaudatus   (see Salgado & Ruiz 2017: fig. 24F).

Description. Male holotype (MPEG 35022). Total length: 2.87. Carapace 1.79 long, 1.18 wide and 0.95 high. Ocular quadrangle 0.82 long. Anterior eye row 1.33 wide, posterior 1.14 wide. Legs 3412. Length of leg: I 2.93 (0.92 + 1.14 + 0.87); II 2.61 (0.86 + 0.93 + 0.82); III 3.42 (1.18 + 1.16 + 1.08); IV 3.39 (1.09 + 1.10 + 1.20). Chelicerae with pockets, as in A. shenlong   sp. nov. ( Fig. 28C View FIGURE 28 ). Palp ( Figs 23 View FIGURE 23 D–G, 25A–C): femur with medianproventral region prominent ( Fig. 25B View FIGURE 25 ); RvTA ventrally projected with one single projection pointed to apex of palp ( Figs 23G View FIGURE 23 , 25C View FIGURE 25 ); cymbium oval; cymbial conductor leaf-shaped ( Fig. 25A View FIGURE 25 ); tegular lobe dorsally curved ( Fig. 23F View FIGURE 23 ); embolic disc with membranous prolateral portion, with two short distal processes (dPED) almost fused, and one triangular ventral process (vPED) distally placed ( Figs 23D View FIGURE 23 , 25A View FIGURE 25 ); straight embolus shaft, with its basal portion covered by the stout projection of embolic disc ( Figs 23D View FIGURE 23 , 25A View FIGURE 25 ); embolic filament with nearly half the length of embolus shaft ( Fig. 25A View FIGURE 25 ). Color in alcohol ( Figs 23 View FIGURE 23 A–C): carapace black; abdomen black, dorsally variegated with brown; ventrally black; legs generally black; legs III and IV with pale metatarsi and tarsi.

Female paratype (MPEG 35028). Total length: 3.07. Carapace 1.63 long, 1.08 wide and 0.75 high. Ocular quadrangle 0.87 long. Anterior eye row 1.17 wide, 1.00 posterior wide. Legs 4312. Length of leg: I 2.39 (0.79 + 0.88 + 0.72); II 2.32 (0.76 + 0.86 + 0.70); III 3.12 (1.04 + 1.10 + 0.98); IV 3.32 (0.98 + 1.11 + 1.23). Epigyne/vulva ( Figs 24D View FIGURE 24 , 25D View FIGURE 25 ): epigynal plate with lateral depressions. Color in alcohol ( Fig. 24 View FIGURE 24 A–B): cephalic area black; thoracic area dark brown; abdomen dorsally variegated with black and brown; ventrally pale; legs pale with black spots. Compare this with color of live specimen in Fig. 24C View FIGURE 24 .

Distribution. Known from the states of Mato Grosso do Sul, Minas Gerais and São Paulo ( Brazil) ( Fig. 30 View FIGURE 30 ).

Natural History. The specimens were collected in leaf-litter and tree trunk, close to waterfalls and lakes.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Amphidraus