Architis ikuruwa Carico, 1981

Santos, Adalberto J., 2007, A revision of the Neotropical nursery-web spider genus Architis (Araneae: Pisauridae), Zootaxa 1578 (1), pp. 1-40 : 17-19

publication ID 10.11646/zootaxa.1578.1.1

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Architis ikuruwa Carico, 1981


Architis ikuruwa Carico, 1981 View in CoL

Figures 8A–B View FIGURES 8 , 11 View FIGURE 11

Architis ikuruwa Carico 1981: 147 View in CoL , figs 30–31, map 2, tables 1–2. Brignoli 1983: 700; Platnick 1989: 394.

Type material. Holotype of Architis ikuruwa Carico, 1981 : female, Canje , Ikuruwa River, Guyana, 05º70’N, 57 o 50’W, August–December 1961, G. Bently ( AMNH) (examined).

Additional material examined. BOLIVIA: Beni: ( Estación Biológica del Beni), 15 o 23’S, 66 o 59’W, November 1989, J.A. Coddington et al., 4♀ ( USNM) GoogleMaps , 1♀ ( IBSP 62889 View Materials ) . GUYANA: Upper Takutu-Upper Essequibo: ( Essequibo River , 4.42 km S Gunn’s Strip Bank), 1 o 36’45.7”N, 58 o 38’14.6”W, 6–15 July 1999, J.A. Coddington et. al., 2♀ ( USNM) GoogleMaps . PERU: Loreto: close to Pithecia , 05 o 11’S, 72 o 42’W, May–June 1990, T. Erwin & D. Silva, 1♀ ( MUSM) GoogleMaps . SURINAM: Saramacca: ( Voltsberg-Raleighvallen Nature Reserve ), 04 o 32’N, 56 o 32’W, February 1982, D. Smith, 1♀ ( MCZ) GoogleMaps .

Diagnosis. Architis ikuruwa shares with A. altamira sp. nov. the shape of the epigynum with a pair of large, laterally directed, sclerotised hoods delimiting the copulatory openings ( Figs 8A, C View FIGURES 8 ). The species can be distinguished by the larger sclerotised hoods ( Fig. 8A View FIGURES 8 ) and the long and anteriorly curved CD which are encapsulated by epigynal folds only in the posterior half ( Fig. 8B View FIGURES 8 ).


Male. Unknown.

Female ( based on IBSP 62889 View Materials from Estación Biológica del Beni, Bolivia)

Carapace brown, with a median and a pair of lateral cream-coloured stripes. Lateral stripes with small lat- eral extensions close to leg bases. Anterior eye row procurved, lateral eyes strongly projected ventrally and almost twice as large as medians. Posterior eyes of similar size. Clypeus, chelicerae and endites creamcoloured, labium dark brown. Sternum cream-coloured, with lateral black spots close to leg bases. Pedipalpi and legs cream-coloured. Legs with apical dark rings on femur, tibia and metatarsus. Opisthosoma dark gray, paler laterally and ventrally. Sides suffused with black spots. Venter with a median black stripe. Spinnerets pale brown, circled by a black pigment ring. Total length 4.7. Carapace 2.0 long, 1.7 wide. Tibia I length 3.5, II 3.6, III 2.7, IV 3.2. Opisthosoma 2.7 long, 1.3 wide.

Variation. Females, total length 4.7–4.8, carapace width 1.7–1.8.

Distribution. Northern South America, Peru and Bolivia ( Fig. 11 View FIGURE 11 ).


American Museum of Natural History


Smithsonian Institution, National Museum of Natural History


Museum of Comparative Zoology














Architis ikuruwa Carico, 1981

Santos, Adalberto J. 2007

Architis ikuruwa

Platnick, N. I. 1989: 394
Brignoli, P. M. 1983: 700
Carico, J. E. 1981: 147
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