Aruattus agostii, Dmitri V. Logunov & Galina N. Azarkina, 2008

Dmitri V. Logunov & Galina N. Azarkina, 2008, Two new genera and species of Euophryinae (Aranei: Salticidae) from SE Asia, Arthropoda Selecta 17 (1 - 2), pp. 111-115 : 112

Aruattus agostii sp.n.

Figs 1­9.

TYPES. Holotype ♂ ( MHNG), Indonesia, Aru Islands Ɩ= Aroe Islands], Wokan , c. 5 km of mouth of Sungai Tunguvatu, Om, primary forest on limestone, 22.08.1991 ƖF 91-937 ], D. Agosti. Paratypes: 3♂♂ ( MHNG), together with the holotype ; 1 ♀ ( MHNG), Indonesia, Aru Islands Ɩ= Aroe Islands], Kola, Island Wafan , secondary forest, limestone, 20 m a.s.l., leaf litter, 27.08.1991 ƖF 91- 968 ], D. Agosti ; 1 ♂ ( MHNG), Indonesia, Kai Besar Ɩ= Great Kai Island], Bombay , G. Dab, south face, secondary forest on limestone, 300 m a.s.l., leaf litter, 5.09.1991 ƖF 91-1048 ], D. Agosti .

ETHYMOLOGY. The species is named after its collector, D. Agosti.

DIAGNOSIS. As that of the genus.

DESCRIPTION. Male (the holotype): Carapace 1.10 long, 1.05 wide, 0.70 high at PLE. Ocular area 0.65 long, 0.97 wide anteriorly and 0.95 wide posteriorly; the 2nd eye row is in midway between AMEs and PLEs. Diameter of AME 0.30. Abdomen 0.95 long, 0.70 wide. Cheliceral length 0.30. Clypeal height 0.05. Length of leg segments: I 0.60 + 0.40 + 0.45 + 0.40 + 0.25; II 0.50 + 0.30 + 0.35 + 0.35 + 0.20; III 0.55 + 0.25 + 0.35 + 0.45 + 0.25; IV 0.60 + 0.30 + 0.45 + 0.60 + 0.30. Leg formula: IV, I, III, II. Leg spination: I: Fm d 0-0-1-1; Tb v 2-2 -2-2; Mt v 2-2 - 2. II: Fm d 0-0-1-1; Tb v 1-1 -0-0; Mt v 1-1 -2 ap. III: Fm d 0-0-1-2; Tb pr and rt 0-1, v 1 -0-2 ap; Mt pr and rt 0-0-2 ap, v 0-0-2 ap. IV: Fm d 0-0-1-1; Tb pr 0-1, rt 0-1-0, v 1 -0-2 ap; Mt pr and rt 0-0-2 ap; v 0-0-2 ap. Colouration. Carapace high, with a very short thoracal part; light brown, with black around eyes (Fig. 9). Sternum yellow-brown. Clypeus and cheeks brown, sparsely covered with white hairs and bristles. Chelicerae brown. Sternum brown. Maxillae and labium yellow-brown, with white apexes. Abdomen brown-grey: dorsum with poorly marked dorsal grey reticulate pattern, and the anteriour two thirds of dorsum covered with brownish scutum (Fig. 7); venter yellow. Book-lung covers and spinnerets brownish. Legs and palps brownish. Palpal structure as in Figs 1 ­2; the embolar disk with a tooth (arrowed in Fig. 2), the mediumsized tibial apophysis presents.

Female (the paratype): Carapace 1.20 long, 1.10 wide, 0.65 high at PLE. Ocular area 0.65 long, 1.05 wide anteriorly and 1.05 wide posteriorly; the 2nd eye row is in midway between AMEs and PLEs. Diameter of AME 0.35. Abdomen 1.15 long, 1.00 wide. Cheliceral length 0.25. Clypeal height 0.05. Length of leg segments: I 0.75 + 0.35 + 0.50 + 0.40 + 0.30; II 0.60 + 0.30 + 0.35 + 0.40 + 0.25; III 0.60 + 0.30 + 0.40 + 0.50 + 0.20; IV 0.70 + 0.30 + 0.50 + 0.60 + 0.25. Leg formula: IV, I, III, II. Leg spination: I: Fm d 0-0- 0-1-1; Tb v 2-2 -2-2 ap; Mt v 2-2 -2 ap. II: Fm d 0-0-0-1-1; Tb v 1 -0-2 ap; Mt v 2-2 -2 ap. III: Fm d 0-0-0-1-3; Tb v 1 -0- 2 ap; Mt pr and rt 1-1, v 0-2-2 ap. IV: Fm d 0-0-0-1-1; Tb v 1 - 0-2 ap; Mt pr 0-0-1 ap, rt 0-1-2 ap; v 0-2-2 ap. Colouration. Carapace dark brown, with black around eyes. Chelicerae yellow-brown. Sternum yellowish brown. Maxillae and labium yellow-brown, with white apexes. Abdomen yellow-brown, ventrally with two brown stripes. Dorsum yellow-brown.Book-lung covers and spinnerets yellow-brown. All legs and papls brown. Palps without an apical claw. Epigyne and spermathecae as in Figs 4­6; the epigynal plate with no median septum and epigynal pocket, the prominent proximal reservoir of the spermathecae is well-developed (arrowed in Fig. 5).

DISTRIBUTION. Indonesia: Aru Islands and Kai Besar Ɩpresent data].

Figures

Figs 1­9: Aruattus agostii sp.n. (♂ holotype, ♀ paratype): 1 C male palp, ventral view; 2 C ditto, retrolateral view; 3 C female chelicera, ventral view; 4 C epigyne, ventral view; 5 C spermathecae, dorsal view; 6 C diagrammatic course of the insemination ducts; 7 C male general appearance, dorsal view; 8 C male face; 9 C male carapace, lateral view. Scale lines: 0.1 mm (1­5), 0.5 mm (7­9). PƲc. 1̅9: Aruattus agostii sp.n. (♂ FƟƌƟŦƲƞ, ♀ ƞapaŦƲƞ): 1 O ƞaƌbƞa caMUa, cBƲƷy; 2 O ŦƟAEe, cƷaJƲ-cÕƟĸy; 3 O xeƌƲUepa caMĸƲ, cBƲƷy; 4 O ƞƲFƲBa, cBƲƷy; 5 O cƞepMaŦeĸa, cƁepxy; 6 O cxeMa ƞpƟŦƟĸƟƁ cƞepMaŦeĸƲ; 7 O ƟÕƜƲŭ ƁƲJ caMUa, cƁepxy; 8 O ďeŭc caMUa; 9 O FƟƌƟƁƟFpyJb caMUa, cÕƟĸy. MacmŦaÕ: 0,1 MM (1̅5), 0,5 MM (7̅9).