Epicadus pulcher ( Mello-Leitão, 1929 )

Machado, Miguel, Teixeira, Renato Augusto & Lise, Arno Antonio, 2018, There and back again: More on the taxonomy of the crab spiders genus Epicadus (Thomisidae: Stephanopinae), Zootaxa 4382 (3), pp. 501-530: 514-515

publication ID

https://doi.org/10.11646/zootaxa.4382.3.4

publication LSID

lsid:zoobank.org:pub:87A2B333-09FF-4726-A1EF-0699FB631808

persistent identifier

http://treatment.plazi.org/id/501D87B1-6730-A432-2390-FE975216BB7E

treatment provided by

Plazi

scientific name

Epicadus pulcher ( Mello-Leitão, 1929 )
status

 

Epicadus pulcher ( Mello-Leitão, 1929) 

Figs 7A –DView FIGURE7

Tobias pulcher Mello-Leitão, 1929: 90  , figs 189–190.

Tobias epicadoides Mello-Leitão, 1944: 11  (holotype female from Aurá [1°25'34.80"S, 48°23'10.86"W, Belém, Brazil], deposited in MNRJ 0 0 82, examined).GoogleMaps 

Tobias regius Birabén, 1955: 74  , figs 5–8 (holotype female from Buena Vista [17°27'32.00"S, 63°39'33.00"W, Santa Cruz, Bolivia], deposited in MLP 0 405, examined).GoogleMaps 

Epicadus pulcher (Mello-Leitão)  . Machado et al. 2017: 448, figs S2A, S5C, S13D.

Type material: Holotype (original designation): female, São Paulo de Olivença [3°38'59.84"S, 69°5'48.85"W, Amazonas, Brazil], ( MNHN 137, examined).

Other material examined. BRAZIL: Bahia: 1 female, Governador Lomanto Júnior , 14°48'36.65"S, 39°28'18.31"W, 28 June 1968, leg. CEPLAC, ( MNRJ 06861View Materials).GoogleMaps 

Diagnosis. Females of E. pulcher  resemble those of E. tigrinus  in their vivid yellow body coloration with remarkable black stripes on femora and flattened prosoma with large TWS. However, they can be distinguished by the presence of five opisthosomal projections instead of three, being the median posterior one thin and tail-like. The anterior border of the opisthosoma is strongly concave rather than straight as in E. tigrinus  ( Fig. 7AView FIGURE7) and the epigynal plate is shallow, with neither folds nor a conspicuous median septum ( Fig. 7CView FIGURE7).

Description. Female (from São Paulo de Olivença; MNHN 137): Anterior eye row recurved and posterior procurved. Prosoma yellow with black stains at cephalic region, TWS well developed and surrounded by a dual LBL ( Fig. 7AView FIGURE7); MS absent ( Fig. 7BView FIGURE7). Chelicerae yellow with proximal black stains. Sternum, endites and labium uniformly yellow. Opisthosoma with five projections faced backward; lower lateral ones longer than others and median posterior tail-like,whitish-yellow with a median LBL and dark, scattered punctuations ( Fig. 7AView FIGURE7). Clypeus with a divided upside down V-shaped black mark ( Fig. 7BView FIGURE7); anterior legs (I and II) yellow with black stripes; posterior legs (III and IV) predominantly yellow with tiny black spots at the distal portion of femora. Epigynum presents the simplest external design of all Epicadus  species, with no septum, elevated lateral folds or differentiation between the median field and the rest of the epigynal plate ( Fig. 7CView FIGURE7). The copulatory ducts are short when compared to those of other representatives of the genus and the primary spermathecae have rough surface and spherical shape ( Fig. 7DView FIGURE7).

Measurements: eye diameters and interdistances: AME 0.10, ALE 0.14, PME 0.08, PLE 0.06, AME –AME 0.36, AME –ALE 0.20, PME –PME 0.44, PME –PLE 0.22; MOQ length 0.72, MOQ posterior width 0.68, MOQ anterior width 0.66; leg formula: 1-2-4-3: leg I—femur 4.92/ patella 2.58/ tibia 3.05/ metatarsus 2.10/ tarsus 1.40/ total 14.05; II—4.50/ 2.45/ 3.15/ 2.00/ 1.65/ 13.75; III—2.25/ 1.50/ 1.50/ 1.35/ 0.65/ 7.25; IV—2.75/ 1.44/ 1.79/ 1.75/ 0.65/ 8.38. Total body length 9.70; prosoma length 4.75, width 4.55; opisthosoma length 4.95; clypeus height 0.50; sternum length 2.10, width 1.60; endites length 1.20, width 0.66; labium length 0.76, width 0.78.

Distribution. BOLIVIA: Santa Cruz; BRAZIL: Pará, Amazonas, Bahia ( Fig. 17BView FIGURE 17).

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

MLP

Museo de La Plata

MNHN

Museum National d'Histoire Naturelle

LBL

Maria Curie-Sklodowska University

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Thomisidae

Genus

Epicadus

Loc

Epicadus pulcher ( Mello-Leitão, 1929 )

Machado, Miguel, Teixeira, Renato Augusto & Lise, Arno Antonio 2018
2018
Loc

Tobias pulcher Mello-Leitão, 1929 : 90

Mello-Leitão, 1929 : 90
Loc

Tobias epicadoides Mello-Leitão, 1944 : 11

Mello-Leitão, 1944 : 11
Loc

Epicadus pulcher (Mello-Leitão)

Machado et al. 2017 : 448