Kryptochroma quinquetuberculata ( Taczanowski, 1872 ) Machado & Viecelli & Guzati & Grismado & Teixeira, 2021

Machado, Miguel, Viecelli, Rafaela, Guzati, Catherine, Grismado, Cristian J. & Teixeira, Renato A., 2021, Kryptochroma: a new genus of bark-dwelling crab spiders (Araneae, Thomisidae), European Journal of Taxonomy 778, pp. 26-70 : 51-53

publication ID

https://doi.org/10.5852/ejt.2021.778.1565

publication LSID

lsid:zoobank.org:pub:4AFEC628-D555-44BD-8592-3A338694885F

persistent identifier

http://treatment.plazi.org/id/EB2A87E5-FFCD-FFC3-1F36-3B18FB7AFB39

treatment provided by

Felipe

scientific name

Kryptochroma quinquetuberculata ( Taczanowski, 1872 )
status

gen. et comb. nov.

Kryptochroma quinquetuberculata ( Taczanowski, 1872)   gen. et comb. nov.

Figs 14 View Fig , 18, 19C

Thomisus quinquetuberculatus Taczanowski, 1872: 100   .

Stephanopis acanthogastra Mello-Leitão, 1929: 53   , fig. 135. syn. nov.

Stephanopis quinquetuberculata   – Keyserling 1880: 171, pl. 3 fig. 94. — Mello-Leitão 1929: 62. Tobias quinquetuberculatus   – Simon 1895: 1053.

Notes

According to Keyserling (1880), the description of the species in his work was based on the holotype originally proposed by Taczanowski (1872), from Cayenne ( French Guiana), which is presumably lost. We had access to a specimen from the Natural History Museum of London (BMNH 1890.7.1.3479) that is labeled as “type” ( Fig. 14G–H View Fig ); however, it is clearly not the holotype because it was collected after the original description. Since this specimen is strikingly similar to the one represented in the original illustrations (where the author highlighted the diagnostic features of the male palpus: sinuous RTA and the tip-narrowed tegulum) and was found near the original locality ( New Granada, currently corresponding to the Colombian territory), we propose it as the neotype for K. quinquetuberculata   comb. nov. ( Fig. 14G–H View Fig ).

Diagnosis

The male of K. quinquetuberculata   resembles that of K. pentacantha   by its stout opisthosomal projections and by the presence of a dorsal white macula on the opisthosoma ( Fig. 14A View Fig ). However, it can be recognized by the tegulum in the shape of a water drop, bearing a straight and tip-narrowed embolus instead of a curved termination observed in its closest correlated species ( Figs 14C, E View Fig , 19C). Moreover, K. quinquetuberculata   has a remarkable RTA which is large at the basis, sharpen abruptly at the tip, and sinuous, pointing towards to the dorsum of the cymbium ( Figs 14D, F View Fig , 19C).

Material presumably lost

Holotype FRENCH GUIANA • ♂; Cayenne ; MZPW.  

Material examined

Neotype COLOMBIA • ♂; BMNH 1890.7.1.3479 .  

Holotype of S. acanthogastra   syn. nov. BRAZIL • ♂; Bahia; MNHN 17126 View Materials   .

Additional material

FRENCH GUIANA • 1 ♂; Maripasoula , Massif du Mitaraka ; 02°17′26″ N, 54°31′18″ W; 2015; Vedel leg.; MCTP 42644 View Materials GoogleMaps   1 ♂; Maripasoula , Sommet Tabulaire , Mont Itoupe ; 03°32′13″ N, 53°34′25″ W; 13 Nov. 2014; Vedel and Lalague leg.; MCTP 42645 View Materials GoogleMaps   .

BRAZIL – Pernambuco State • 1 ♂, 1 juv.; Recife, Horto Dois Irmãos; 8°00′35″ S, 34°56′51″ W; 13 Sep. 1999; M. Peres leg.; IBSP 38639 View Materials . – GoogleMaps   Bahia State • 1 ♂; Una, Reserva Biológica de Una ; 15°10′42″ S, 39°06′13″ W; 15–28 Nov. 2000; A.D. Brescovit leg.; IBSP 46738 View Materials • 1 ♂; same collection data as for preceding; IBSP 46712 View Materials • 1 ♂; same collection data as for preceding; IBSP 46714 View Materials • 1 ♂; same collection data as for preceding; IBSP 46724 View Materials • 1 ♂; same collection data as for preceding; IBSP 46726 View Materials • 1 ♂; same collection data as for preceding; IBSP 46740 View Materials GoogleMaps   1 ♂; Reserva Zoobotânica CEPLAC ; 14°46′22″ S, 39°13′13″ W; 8 Dec. 2010; G.H.F. Azevedo and A.J. Santos leg.; UFMG 9484 View Materials GoogleMaps   .

Description

Male (IBSP 46712)

PROSOMA. Anterior eye row strongly recurved, posterior slightly procurved; carapace predominantly dark-brown with discrete MS; clypeus lighter than the rest of carapace with light spots at its lateral margins ( Fig. 14B View Fig ). Labium, endites and chelicerae dark-brown.

LEGS. Anterior legs (I and II) dark-brown and posterior femora (III and IV) presenting their proximal half yellow.

OPISTHOSOMA. Predominantly brown with a dorsal white macula at its median region and a light transversal line connecting the anterolateral projections ( Fig. 14A View Fig ).

MEASUREMENTS. Eye diameters and eye interdistances: AME 0.06, ALE 0.11, PME 0.09, PLE 0.09, AME–AME 0.06, AME–ALE 0.08, PME–PME 0.16, PME–PLE 0.04, MOQ length 0.32, MOQ width 0.35; leg formula: 1-2-4-3: leg I – femur 1.61/ patella 0.88/ tibiae 1.19/ metatarsus 0.88/ tarsus 0.56/ total 5.12; II – 1.45/ 0.72/ 0.96/ 0.72/ 0.48/ 4.33; III – 0.88/ 0.48/ 0.72/ 0.48/ 0.37/ 2.93; IV – 1.01/ 0.48/ 0.80/ 0.48/ 0.40/ 3.17. Total body length 4.39; carapace 2.12 length, 2.07 width; opisthosoma length 2.22; clypeus 0.24 height; sternum 0.85 length, 0.72 width; endites 0.32 length, 0.25 width; labium 0.16 length, 0.29 width.

Female

Unknown.

Distribution

French Guiana (Cayenne and Maripasoula) and Brazil (Bahia and Pernambuco) ( Fig. 18 View Fig ).

MZPW

Poland, Warszawa [=Warsaw], Polish Academy of Science, Museum of the Institute of Zoology

MZPW

Polish Academy of Science, Museum of the Institute of Zoology

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Thomisidae

Genus

Kryptochroma

Loc

Kryptochroma quinquetuberculata ( Taczanowski, 1872 )

Machado, Miguel, Viecelli, Rafaela, Guzati, Catherine, Grismado, Cristian J. & Teixeira, Renato A. 2021
2021
Loc

Stephanopis acanthogastra Mello-Leitão, 1929: 53

Mello-Leitao C. F. 1929: 53
1929
Loc

Stephanopis quinquetuberculata

Mello-Leitao C. F. 1929: 62
Simon E. 1895: 1053
Keyserling E. 1880: 171
1880
Loc

Thomisus quinquetuberculatus

Taczanowski L. 1872: 100
1872