Architis turvo, Santos, 2007

Santos, Adalberto J., 2007, A revision of the Neotropical nursery-web spider genus Architis (Araneae: Pisauridae), Zootaxa 1578 (1), pp. 1-40 : 23

Architis turvo sp. nov.

Figures 10A–C , 11

Type material. Holotype: female, Parque Estadual do Turvo , Derrubadas, state of Rio Grande do Sul, Brazil, 27º00’S, 53º40’W, 11–18 January 2002, Equipe Biota ( IBSP 62897 ) . Paratype: female, same locality as holotype ( IBSP 62896 ) .

Etymology. The specific name is a noun in apposition taken from the type locality.

Diagnosis. Architis turvo sp. nov. is similar to A. tenuipes in the shape of epigynum and configuration of internal genitalia (see diagnosis of A. tenuipes ; also Fig. 9 CD). These species differ by the wider median field and the presence of lateral posterior pockets in the epigynum of A. turvo sp. nov. ( Fig. 10B ).

Description

Male. Unknown.

Female ( based on holotype from Parque Estadual do Turvo , Brazil)

Carapace yellow, with a median white spot and a median stripe of dark setae. Anterior eye row procurved, lateral eyes approximately twice the diameter of median eyes. Posterior eyes of similar size, slightly larger than anterior lateral eyes. Clypeus, chelicerae and endites yellow. Labium orange, sternum and pedipalpi white. Legs yellow, with dark spots at the base of spines. Femur, patella, tibia and metatarsus with apical dark rings. Opisthosoma gray, dorsally covered with white guanine spots ( Fig. 10A ). Spinnerets orange. Total length 4.6; carapace 1.8 long, 1.6 wide. Tibia I length 2.1, II 2.0, III 1.6, IV 1.7. Opisthosoma 2.5 long, 1.5 wide. CD encapsulated in rounded cases; fertilisation ducts emerging dorsally ( Fig. 10C ).

Natural history. The type specimens were collected by beating on understorey vegetation during the day.

Distribution. Known only from the type locality in southern Brazil ( Fig. 11 ).

Figures

FIGURES 9A–D. Architis tenuipes (Simon). A, male pedipalpus, ventral view; B, male pedipalpus, lateral view; C, female epigynum, ventral view; D, female internal genitalia, dorsal view. Scale bars: A–B, 0.2 mm; C–D, 0.1 mm.

FIGURES 10A–C. Architis turvo sp. nov. A, female habitus, dorsal view; B, female epigynum, ventral view; C, female internal genitalia, dorsal view. Scale bars: A, 0.5 mm; B–C, 0.1 mm.

FIGURE 11. Geographic distribution records of Architis comaina sp. nov. (empty circle), A. ikuruwa Carico (cross), A. altamira sp. nov. (full triangle), A. dianasilvae sp. nov. (full circle), Architis tenuipes (Simon) (empty square) and A. turvo sp. nov. (empty triangle).