Architis robusta Carico, 1981

Santos, Adalberto J., 2007, A revision of the Neotropical nursery-web spider genus Architis (Araneae: Pisauridae), Zootaxa 1578 (1), pp. 1-40: 31-32

publication ID

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

publication LSID

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

DOI

http://doi.org/10.5281/zenodo.5098317

persistent identifier

http://treatment.plazi.org/id/03B32614-484B-292F-6F98-53B19FD84682

treatment provided by

Felipe

scientific name

Architis robusta Carico, 1981
status

 

Architis robusta Carico, 1981  

Figures 16A–D View FIGURES 16 , 17 View FIGURE 17

Architis robusta Carico 1981: 147   , figs 5, 9, 24–25, map 2, tables 1–2. Brignoli 1983: 700; Platnick 1989: 394.

Type material. Holotype of Architis robusta Carico, 1981   : male, forest preserve, province of Colón, Canal Zone , Panama, 9 o 16’N, 79 o 19’W, 25 July 1954, A.M. Chickering ( MCZ) (not examined). GoogleMaps  

Material examined. BRAZIL: Rondônia: Porto Velho , 8 o 52’S, 63 o 52’W, 15 April 1996, equipe IBSP/ SMNK, 1♂ ( IBSP 15158 View Materials ) GoogleMaps   . Pará: Canindé ( Rio Gurupi ), 0 o 31’S, 51 o 13’W, 7–15 April 1963, B. Malkin, 1♂ ( AMNH) GoogleMaps   . Bahia: Una ( Reserva Biológica do Una ), 15 o 18’S, 39 o 4’W, 15–28 November 2000, A.D. Brescovit et al., 3♂, 2♀ ( IBSP 45230 View Materials , 45231 View Materials , 45529 View Materials , 48280 View Materials ) GoogleMaps   .

Diagnosis. Architis robusta   is close to A. brasiliensis   comb. nov. and A. capricorna   , with which it shares an elongated embolus coiled under the DTP (partially seen through the transparent cuticle; Figs 16A View FIGURES 16 , 18C View FIGURES 18 , 19A View FIGURES 19 ) and the CD of the female epigynum which is coiled medially of the spermatheca ( Figs 16D View FIGURES 16 , 18F View FIGURES 18 , 19E View FIGURES 19 ). These species can be distinguished by the longer vRTA and the smaller and un-notched VTA in the male pedipalpus ( Figs 16A, B View FIGURES 16 ) of A. robusta   . Females present loosely coiled CD and large oval spermathecae ( Fig. 16D View FIGURES 16 ).

Description

Male (based on IBSP 15158 from Porto Velho, Brazil)

Carapace orange with a pair of lateral longitudinal bands of white scales. Anterior eye row procurved, eyes of similar size. Posterior eyes of similar size, slightly larger than anterior eyes ( Carico 1981: figs 5, 8). Sides and posterior margin of carapace covered with dark setae. Chelicerae, labium, and endites orange, sternum pale orange. Pedipalpi cream-coloured, legs pale orange, with darker tibia, metatarsus and tarsus. Opisthosoma dorsally yellow, covered with dark setae and with a median dark gray band and four posterior dark chevrons; laterally dark gray, venter gray with a pair of large yellow spots. Spinnerets orange. Total length 4.5; carapace 2.1 long, 1.9 wide. Tibia I length 2.8, II 2.7, III 1.8, IV 1.9. Opisthosoma 2.4 long, 1.5 wide. dRTA large, conductor robust, gently curved prolaterally ( Figs 16A, B View FIGURES 16 ).

Female (based on IBSP 45230 from Reserva Biológica do Una, Brazil)

Colouration and eye configuration as in male. Total length 5.4; carapace 2.4 long, 2.0 wide. Tibia I length 2.9, II 2.8, III 2.0, IV 1.9. Opisthosoma 3.0 long, 1.6 wide. Lateral lobes of epigynum concave, ventrally and posteriorly projected ( Fig. 16C View FIGURES 16 ).

Variation. Males, total length 4.5–5.3, carapace width 1.9–2.1.

Natural history. Specimens from Una (IBSP 45230, 45231, 45529) were collected by beating understorey vegetation during the day.

Distribution. Panama, northern and northeastern Brazil ( Fig. 17 View FIGURE 17 ).

MCZ

Museum of Comparative Zoology

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pisauridae

Genus

Architis

Loc

Architis robusta Carico, 1981

Santos, Adalberto J. 2007
2007
Loc

Architis robusta Carico 1981: 147

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