Architis capricorna Carico, 1981

Santos, Adalberto J., 2007, A revision of the Neotropical nursery-web spider genus Architis (Araneae: Pisauridae), Zootaxa 1578 (1), pp. 1-40: 35-39

publication ID

http://doi.org/ 10.11646/zootaxa.1578.1.1

publication LSID

lsid:zoobank.org:pub:F1CA1CAB-1E51-4029-B0E8-DA9A5D204C66

persistent identifier

http://treatment.plazi.org/id/03B32614-4877-2916-6F98-55A19F744344

treatment provided by

Felipe

scientific name

Architis capricorna Carico, 1981
status

 

Architis capricorna Carico, 1981  

Figures 19A–E View FIGURES 19 , 20C–D View FIGURES 20 , 21 View FIGURE 21

Architis capricorna Carico 1981: 148–150   , figs 2, 7, 20–21, map 2, tables 1–2. Brignoli 1983: 699; Platnick 1989: 394.

Type material. Holotype of Architis capricorna Carico, 1981   : Male, São Paulo, Brazil, 1897, W.J. Moenkhaus ( PMY) (not examined).  

Material examined. BRAZIL: Mato Grosso do Sul: Anaurilândia (Usina Hidrelétrica Engenheiro Sérgio Motta), 22º22’59”S, 52º48’42”W, 15 Novermber – 23 December 1998, equipe IBSP, 1♂ 5♀ ( IBSP 23466 View Materials ) GoogleMaps   ; 2♂ 3♀ ( IBSP 23463 View Materials ) GoogleMaps   ; 12–18 March 2001, F.S. Cunha & C.A.R. Souza, 2♀ ( IBSP 38546 View Materials )   . Espírito Santo: São  

José do Calçado ( Usina Hidrelétrica de Rosal ), 21 o 1’S, 41º40’W, November 1999, I. Knysak, 3♂ 3♀ ( IBSP 26401 View Materials ) GoogleMaps   . São Paulo: Itirapina ( Estação Ecológica de Itirapina ), 22º15`S, 47º49`W, G. Machado, 1♂ ( IBSP) GoogleMaps   ; São Paulo, 20 February 1997, V.L. Oliveira., 1♂ ( IBSP 8014 View Materials )   ; Ubatuba (Parque Estadual da Serra do Mar, Núcleo Santa Virgínia ), 23º18’S, 45º3’W, November 1996, L.S. Rocha, 1♀ ( IBSP 7404 View Materials ) GoogleMaps   . Paraná: Dois Vizinhos (Foz do Rio Chopim, Usina Hidrelétrica de Salto Caxias ), 25º33’S, 53º3’W, 8–15 October 1998, equipe IBSP, 1♀ 1 juv. ( IBSP 21343 View Materials ) GoogleMaps   ; 1♀ ( IBSP 21027 View Materials ) GoogleMaps   ; 1♂ ( IBSP 21050 View Materials )   . Santa Catarina: Paulo Lopes ( Parque Estadual do Tabuleiro ), 28º16’S, 49º3’W, 10–20 January 2003, Equipe Biota, 9♂ 15♀ ( IBSP) GoogleMaps   .

Diagnosis. Architis capricorna   is the largest species in the genus, and shares several characters of male and female genitalia with A. robusta   and A. brasiliensis   comb. nov. (see A. robusta   diagnosis). These species can be differentiated by the prolaterally notched VTA and the shape of vRTA and dRTA which have a common base and a peculiar spermduct in the anterior margin of the DTP which is shaped like a string of beads in A. capricorna   ( Figs 19A, B View FIGURES 19 , 20C View FIGURES 20 ). Females can be recognised by the specially elongated spiral of the copulatory ducts and the spherical spermathecae ( Fig. 19E View FIGURES 19 ).

Description

Male ( based on IBSP 8014 View Materials from São Paulo, Brazil)  

Carapace dark gray, covered with dark setae and with a longitudinal median and a pair of lateral, sinuous cream-coloured bands. Anterior eye row procurved, eyes of similar size. Posterior eyes of similar size, approximately 1.5 times the anterior median eyes diameter ( Carico 1981: figs 2, 7). Chelicerae gray, with a central anterior dark spot. Labium dark gray, endites gray, sternum cream-coloured. Legs pale gray, with cream-coloured spots. Tarsi of all legs with an apical pseudosegment ( Fig. 19C View FIGURES 19 ). Dorsum and sides of opisthosoma dark gray with pale spots. Venter gray, cream-coloured centrally. Spinnerets dark brown. Total length 7.1; carapace 3.5 long, 3.1 wide. Tibia I length 4.1, II 4.0, III 3.1, IV 4.3. Opisthosoma 3.6 long, 2.1 wide. Subtegulum small and flattened, embolus arising from tegulum in relatively apical position ( Figs 19A, B View FIGURES 19 ).

Female (based on IBSP 26401 from São José do Calçado, Brazil)

Colouration and eye configuration as male. Total length 8.2; carapace 3.4 long, 2.9 wide. Tibia I length 3.7, II 3.6, III 3.1, IV 3.9. Opisthosoma 4.2 long, 3.1 wide. Epigynum small, restricted to the posterior margin of epigastric plate, with spiral of CD partially visible through transparent cuticle ( Fig. 19D View FIGURES 19 ). Fertilisation ducts long and sinuous ( Fig. 19E View FIGURES 19 ).

Variation. Male, total length 5.0–6.1; carapace width 2.4–3.2. Female, total length 4.8–8.2; carapace width 2.2–2.9.

Remarks. The original description is not clear about the type locality since it can refer either to the Brazilian state of São Paulo or its capital city ( Carico 1981). Unfortunately, it will not be possible to solve this problem since the collector of the type material, William J. Moenckhaus, took part in collecting expeditions in several localities in the state of São Paulo from 1897 to 1899 when he worked at the Museu Paulista, currently MZSP (von Ihering 1898; A.D. Brescovit, personal communication). Attempts to obtain the type material as a loan were not successful.

Natural history. The male from Itirapina (IBSP) was collected in a large pitfall trap used in a study of snake population ecology (G. Machado, personal communication), suggesting it to be a ground-dwelling species.

Distribution. Southeastern and southern Brazil ( Fig. 21 View FIGURE 21 ).

IBSP

Instituto Biologico de Sao Paulo

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pisauridae

Genus

Architis

Loc

Architis capricorna Carico, 1981

Santos, Adalberto J. 2007
2007
Loc

Architis capricorna Carico 1981: 148–150

Platnick, N. I. 1989: 394
Brignoli, P. M. 1983: 699
Carico, J. E. 1981: 150
1981