Architis maturaca, Santos, 2007

Santos, Adalberto J., 2007, A revision of the Neotropical nursery-web spider genus Architis (Araneae: Pisauridae), Zootaxa 1578 (1), pp. 1-40: 14-16

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.5098303

persistent identifier

http://treatment.plazi.org/id/03B32614-4858-293F-6F98-55D9983A42A4

treatment provided by

Felipe

scientific name

Architis maturaca
status

sp. nov.

Architis maturaca   sp. nov.

Figures 5A–E View FIGURES 5 , 6 View FIGURE 6

Type material. Holotype: male, District of Maturacá , São Gabriel da Cachoeira, state of Amazonas, Brazil, 0 o 7’S, 67 o 4’W, A.A. Lise, 11 October 1996 ( MCTP 1454 View Materials ) GoogleMaps   . Paratype: female, Vilhena , state of Rondônia, Brazil, 12 o 43’S, 60 o 7’W, Roppa & Becker, 17–24 October 1988 ( MNRJ 3822 View Materials ) GoogleMaps   .

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

Diagnosis. Males of A. maturaca   sp. nov. can be easily distinguished from other species of the genus by the large and stout, laterally projected embolus and the small apical part of the DTP ( Fig. 5B View FIGURES 5 ). The female epigynum differs from those of other species by the triangular median field, the posterior lateral lobes, and two large lateral atria ( Fig. 5D View FIGURES 5 ). The internal female genitalia are easily distinguished by the CD which are encapsulated in large and curved sclerotised cases ( Fig. 5E View FIGURES 5 ).

Description

Male ( based on holotype from Maturacá , Brazil)  

Carapace orange, with a pair of marginal and a pair of paramedian dark spotted areas. Anterior eye row procurved, lateral eyes strongly projected ventrally and approximately twice the diameter of the medians. Posterior eyes of similar size ( Fig. 5A View FIGURES 5 ). Clypeus, chelicerae, endites and labium cream-coloured. Sternum creamcoloured, with marginal dark spots between coxae and four anterior median dark spots. Legs pale orange with incomplete dark rings. Opisthosoma dorsally dark gray, with a median cream-coloured longitudinal band interrupted in the middle. Dorsum with marginal, sinuous cream-coloured bands ( Fig. 5A View FIGURES 5 ), laterally dark gray, venter cream-coloured with dark spots. Spinnerets dark gray. Total length 4.0; carapace 1.8 long, 1.5 wide. Tibia I 4.0, II 4.3, III 3.2. Leg IV missing. Opisthosoma 2.2 long, 0.9 wide. VTA truncated apically and notched prolaterally ( Fig. 5B View FIGURES 5 ); vRTA pointed apically and ventrally projected; dRTA small, subtriangular ( Fig. 5C View FIGURES 5 ). Subtegulum large, partially exposed in the prolateral margin of tegulum ( Fig. 5B View FIGURES 5 ).

Female ( based on paratype from Vilhena , Brazil)  

Carapace gray, darker in the posterior margins of posterior half. Eye configuration as male. Clypeus, chelicerae and labium dark gray, endites and sternum cream-coloured. Legs cream-coloured, darker at the apex of femur. Opisthosoma dorsally dark gray, with marginal rows of white spots. Sides and venter of opisthosoma and spinnerets dark gray. Total length 4.3; carapace 1.6 long, 1.4 wide. Tibia I 3.0, II 3.1, III 2.1, IV 2.1. Opisthosoma 2.7 long, 1.4 wide. Spermathecae spherical, closely attached to CD cases; fertilisation ducts inconspicuous ( Fig. 5E View FIGURES 5 ).

Remarks. The male and female of A. maturaca   sp. nov. were not collected in the same locality, although both occur in the Brazilian Amazonia ( Fig. 6 View FIGURE 6 ). They are here tentatively considered as conspecific based on morphological similarity, especially regarding colouration, general measurements and relative eye sizes and arrangement.

Distribution. Known only from type localities in northern Brazil ( Fig. 6 View FIGURE 6 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pisauridae

Genus

Architis