Architis tenuipes (Simon, 1898)

Santos, Adalberto J., 2007, A revision of the Neotropical nursery-web spider genus Architis (Araneae: Pisauridae), Zootaxa 1578 (1), pp. 1-40 : 21-22

publication ID

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

publication LSID

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

DOI

https://doi.org/10.5281/zenodo.5098311

persistent identifier

https://treatment.plazi.org/id/03B32614-4841-2925-6F98-52299E88405C

treatment provided by

Felipe

scientific name

Architis tenuipes (Simon, 1898)
status

 

Architis tenuipes (Simon, 1898)

Figures 9A–D View FIGURES 9 , 11 View FIGURE 11

Drances tenuipes Simon 1898b: 18 .

Dyrines tenuipes (Simon) . Petrunkevitch 1911: 543; Roewer 1954: 136.

Architis tenuipes (Simon) . Carico 1993: 202; Platnick 1998: 594.

Architis vilhena Carico 1981: 150 , figs 1, 10, 22–23, map 2, tables 1–2. Brignoli 1983: 700; Carico 1989: 224, figs 6–7, table 1; Platnick 1989: 394; Platnick 1993: 515. Synonymy established by Carico (1993).

Type material. Syntypes of Drances tenuipes Simon, 1898 : six males, Cametá , state of Pará, Brazil, 2 o 14’S, 49 o 30’W, Mathan ( MNHN 5408 View Materials ) (not examined) GoogleMaps . Holotype of Architis vilhena Carico, 1981 : male, Vilhena , state of Rondônia, Brazil, 12 o 43’S, 60 o 7’W, November 1973, M. Alvarenga ( AMNH) (not examined) GoogleMaps .

Material examined. BRAZIL: Acre: Rio Branco ( Reserva Extrativista de Humaitá ), 9 o 58’S, 67 o 48’W, 12 April 1996, equipe IBSP/SMNK, 1♀ ( IBSP 15709 View Materials ) GoogleMaps . Roraima: Alto Alegre (Ilha de Maracá, Rio Uraricoera ), 3 o 22’S, 61 o 22’W, 18–22 August 1987, R. Gribel, 1♂, 2♀ ( MCN 19751 View Materials ) GoogleMaps ; same locality, 25 July 1987, 1♂, 3♀ ( MCN 17643 View Materials ) GoogleMaps ; same locality, 21 July 1987, 1♂, 3♀ ( IBSP 62891 View Materials ) GoogleMaps . Rondônia: Vilhena , 12 o 43’S, 60 o 7’W, November 1973, M. Alvarenga, 3♂ ( AMNH) GoogleMaps . Amazonas: Manaus ( Reserva do Km 41), 2 o 27’S, 59 o 45’W, 2 May 2001, T. Izzo, 1♂ ( IBSP 62892 View Materials ) GoogleMaps . Pará: Canindé ( Rio Gurupi ), 0 o 31’S, 51º13’W, 7–15 April 1963, B. Malkin, 2♂, 1 juv. ( AMNH) GoogleMaps ; Melgaço ( Floresta Nacional de Caxiuanã ), 1 o 46’S, 50 o 43’W, 11 August 1996, A.A. Lise et al., 1♀ ( MCTP 9419 View Materials ) GoogleMaps . Mato Grosso: Barra do Tapirapé , 15 o 52’S, 52º15’W, 1–2 January 1963, B. Malkin, 1♂ ( AMNH) GoogleMaps ; Jauru ( Reserva Florestal da Usina Hidrelétrica de Jauru-Salto da Fumaça ), 15 o 12’S, 58 o 43’W, April–November 2004, J. Raizer et al., 2♀ ( IBSP) GoogleMaps ; Sinop , 11º52’S, 55º37’W, October 1975, M. Alvarenga, 5♂ ( AMNH) GoogleMaps .

Diagnosis. Architis tenuipes is morphologically close to A. helveola , with which it shares the VTA that is articulated with the pedipalpal tibia in males ( Figs 9A View FIGURES 9 , 12B View FIGURES 12 ). Both species differ by the VTA which is fused to the vRTA and the small, membranous dRTA in A. tenuipes ( Figs 9A–B View FIGURES 9 ). Females are similar to A. turvo sp. nov. as in both species the median field of the epigynum is large, forming lateral excavated atria ( Figs 9C View FIGURES 9 , 10B View FIGURES 10 ) and the CD are encapsulated in rounded cases ( Figs 9D View FIGURES 9 , 10C View FIGURES 10 ). Both species can be differentiated by the epigynum of A. tenuipes that has a narrower median field and no posterior lateral pockets ( Fig. 9C View FIGURES 9 ).

Description

Male (based on IBSP 62891 from Alto Alegre, Brazil)

Carapace red-brown. Anterior eye row straight, eyes of similar size. Posterior eyes of similar size, slightly larger than anterior eyes. Clypeus and chelicerae red-brown, labium dark brown, endites and sternum creamcoloured. Pedipalpi and legs red-brown. Femur I with nine pairs of ventral thin spines. Tibia I with five pairs of ventral spines. Opisthosoma homogeneously gray, spinnerets cream-coloured. Total length 4.9. Carapace 2.0 long, 1.7 wide. Tibia I length 4.0, II 3.8, III 2.8, IV 3.2. Opisthosoma 2.7 long, 1.1 wide.

Female (based on IBSP 62891 from Alto Alegre, Brazil)

Carapace, clypeus and chelicerae yellow. Eye configuration as male. Labium, endites and sternum creamcoloured. Pedipalpi and legs yellow, tibia with long and curved trichobothria. Leg spination as in male. Opisthosoma yellow, suffused with dark spots. Opisthosoma sides with sparse white guanine spots. Spinnerets yellow. Total length 5.1. Carapace 2.1 long, 1.9 wide. Tibia I length 4.0, II 4.2, III 2.9, IV 3.2. Opisthosoma 3.0 long, 1.2 wide.

Variation. Males, total length 4.9–5.5, carapace width 1.6–1.7. Females, total length 4.2–5.1, carapace width 1.6–1.9.

Natural history. The females from Jauru (IBSP) were collected by beating understorey vegetation during the day.

Distribution. Northern Brazil ( Fig. 11 View FIGURE 11 ).

AMNH

American Museum of Natural History

IBSP

Instituto Biologico de Sao Paulo

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pisauridae

Genus

Architis

Loc

Architis tenuipes (Simon, 1898)

Santos, Adalberto J. 2007
2007
Loc

Architis tenuipes (Simon)

Platnick, N. I. 1998: 594
Carico, J. E. 1993: 202
1993
Loc

Architis vilhena

Platnick, N. I. 1993: 515
Carico, J. E. 1989: 224
Platnick, N. I. 1989: 394
Brignoli, P. M. 1983: 700
Carico, J. E. 1981: 150
1981
Loc

Dyrines tenuipes (Simon)

Roewer, C. F. 1954: 136
Petrunkevitch, A. 1911: 543
1911
Loc

Drances tenuipes

Simon, E. 1898: 18
1898