Amphidraus shenlong, 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: 468-472

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/03F987C0-8A63-0167-3AEE-8DD2FEC24E36

treatment provided by

Plazi

scientific name

Amphidraus shenlong
status

sp. nov.

Amphidraus shenlong   sp. nov.

Figs 21 View FIGURE 21 , 22 View FIGURE 22 , 26 View FIGURE 26 E–F, 26H, 28B, 30

Type material. Holotype: GoogleMaps   ♂ from Conceição do Araguaia   GoogleMaps , 07°59’53.7”S, 49°22’27.1”W, Pará, Brazil, 16.I.2018, R.P.S Almeida. & F.V. Arruda leg. ( MPEG 35020 View Materials ). Paratypes: 2♂, same data as holotype ( MPEG 35021 View Materials , IBSP 221864 View Materials ) GoogleMaps   .

Additional material examined. BRAZIL: Pará: GoogleMaps   4♂ from Conceição do Araguaia   GoogleMaps , 07°59’53.7”S, 49°22’27.1”W, 16.I.2018, R.P.S Almeida. & F.V. Arruda leg. ( MPEG 32794 View Materials , 32807 View Materials ).

Etymology. The specific epithet (noun in apposition) is the name of a dragon of Chinese mythology and refers to the big projection of the embolic disc, which recalls a dragon’s tail (white arrow in Fig. 21D View FIGURE 21 ).

Diagnosis. A. shenlong   sp. nov. is similar to A. draconicaudatus Salgado & Ruiz, 2017   by having an elongate and stout projection on the retrolateral border of the embolic disc that extends towards the retrolateral tegulum border and bears several branches ( Figs 21 View FIGURE 21 C–D, 26A, 27A), and by having the RvTA ventrally projected with projections on its border ( Figs 21F View FIGURE 21 , 22B View FIGURE 22 , 26G View FIGURE 26 ). However, A. shenlong   sp. nov. can be distinguished by having the RvTA with four projections (three with acute tip and one with serrated tip) and the RTA serrated tip reaching the same height of the RvTA tip along palp axis ( Figs 21F View FIGURE 21 , 22B View FIGURE 22 , 26H View FIGURE 26 ), whereas in A. draconicaudatus   the RvTA has a single serrated projection and the RTA is reduced to spikes ( Figs 26G View FIGURE 26 , 27 View FIGURE 27 C–D).

Description. Male holotype (MPEG 35020). Total length: 2.68. Carapace 1.31 long, 0.89 wide, 0.69 high. Ocular quadrangle 0.71 long. Anterior eye row 1.01 wide, posterior 0.86 wide. Legs 3412. Length of legs: I 1.82 (0.61 + 0.62 + 0.59); II 1.68 (0.59 + 0.57 + 0.52); III 2.42 (0.83 + 0.84 + 0.75); IV 2.29 (0.69 + 0.75 + 0.85). Chelicera with pocket on outer surface (between dorsum and retrolateral face) ( Fig. 28B View FIGURE 28 ). Palp ( Figs 21 View FIGURE 21 C–F, 22A– B): femur with median-ventral region slight prominent ( Fig. 21F View FIGURE 21 ); cymbium oval; cymbial conductor leaf-shaped ( Fig. 22A View FIGURE 22 ); tegulum with narrow lobe curved to retrolateral side ( Figs 21E View FIGURE 21 , 22A View FIGURE 22 ); embolic disc with three processes very closer together: two rounded distal processes (dPED) almost fused and one short triangular ventral process (vPED) ( Figs 21E View FIGURE 21 , 22A View FIGURE 22 ). Embolic filament about as long as embolus shaft ( Figs 21C, 21E View FIGURE 21 ). Color in alcohol ( Figs 21 View FIGURE 21 A–B): cephalic area black; thoracic area yellow; abdomen dorsally variegated with yellow and brown; ventrally yellow; legs yellow.

Female. Unknown.

Distribution. Known only from the type locality (state of Pará, Brazil) ( Fig. 30 View FIGURE 30 ).

Natural History. The specimens were collected from ecotonal zone between the Cerrado and the Amazon rainforest.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Amphidraus