Amphidraus loxodontillus

Ruiz, Gustavo R. S., 2017, Ten new species of Amphidraus Simon, 1900 (Araneae: Salticidae: Euophryini) and three new combinations, Zootaxa 4312 (3), pp. 401-437: 429

publication ID

https://doi.org/10.11646/zootaxa.4312.3.1

publication LSID

lsid:zoobank.org:pub:304D1493-B681-4215-B1F9-C1911B70087B

persistent identifier

http://treatment.plazi.org/id/26058799-FF83-FF8C-E9AB-FBD0FA8BF853

treatment provided by

Plazi

scientific name

Amphidraus loxodontillus
status

sp. nov.

Amphidraus loxodontillus  sp. nov.

Figs 25–26View FIGURE 25View FIGURE 26

Type material. Holotype: ♂ from Igapó Tarumã-Mirim [03°00’49.0”S, 60°10’33.5”W], Manaus, Amazonas, Brazil, 8.X.1987, unknown leg. (deposited in INPA).GoogleMaps 

Etymology. Epithet to be treated as a compound Latin noun (loxodonta, the African elephant + the alternative suffix -illus to create the diminutive), in allusion of the shape of the embolic disc and embolus, which, seen upside down, create the image of a young elephant with large ear (the disc) and long trunk (the embolus).

Diagnosis. The embolic disc and embolus of A. loxodontillus  sp. nov. are similar to those A. semicanus  , with a rounded dPED ( Fig. 26View FIGURE 26 C). However, A. loxodontillus  sp. nov. differs from this species in having a small-sized embolus apical filament ( Fig. 26View FIGURE 26 C), while in A. semicanus  it is very long and spiralled (see Galiano 1963: lám. XXVII, figs 15–16). In addition, the male palpal tibia of A. loxodontillus  sp. nov. has two apophyses, while it has a single, wide apophysis in A. semicanus  ( Fig. 26View FIGURE 26 D; see Galiano 1963: lám. XXVII, fig. 15).

Description. Male (deposited in INPA). Total length: 2.51. Carapace 1.29 long, 0.84 wide and 0.53 high. Ocular quadrangle 0.65 long. Anterior eye row 0.87 wide, posterior 0.76 wide. Legs: 4312. Length of leg I 1.90 (0.61 + 0.72 + 0.57); II 1.86 (0.65 + 0.68 + 0.53); III 2.11 (0.70 + 0.65 + 0.76); IV 2.47 (0.76 + 0.80 + 0.91). Palp ( Figs 26View FIGURE 26 A –D): femur with poorly developed distal ventral depression; embolic filament short, slightly longer than half the length of the straight, sclerotized portion. Color in alcohol: thoracic area dark brown and cephalic area black; abdomen dorsally brown and variegated; ventrally dark brown; legs brown ( Figs. 25View FIGURE 25 A –B).

Female. Unknown.

Distribution. Known only from the type locality ( Brazil, Amazonas) ( Fig. 29View FIGURE 29).

Misplaced species. The type species of Nebridia  ( N. semicana Simon, 1902  ) was transferred to Amphidraus  by Zhang & Maddison (2015). Consequently, Nebridia  was synonymized with Amphidraus  . In addition to the type species, Amphidraus  currently includes three other species transferred from Nebridia  , namely A. manni  , A. mendicus  and A. parvus  , whose morphology did not correspond to that of true Amphidraus  and are discussed below.

INPA

Instituto Nacional de Pesquisas da Amazonia

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Amphidraus