Kryptochroma macrostyla ( Mello-Leitão, 1929 ) 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 : 37-39

publication ID

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

publication LSID

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

DOI

http://doi.org/10.5281/zenodo.5686950

persistent identifier

http://treatment.plazi.org/id/EB2A87E5-FFDF-FFD5-1FD5-3F5CFC9FFCBD

treatment provided by

Felipe

scientific name

Kryptochroma macrostyla ( Mello-Leitão, 1929 )
status

comb. nov.

Kryptochroma macrostyla ( Mello-Leitão, 1929)   comb. nov.

Figs 6 View Fig , 9, 20C

Stephanopis macrostyla Mello-Leitão, 1929: 61   , fig. 145.

Diagnosis

The male of K. macrostyla   resembles that of K. pentacantha   by its robust body and large size when compared to other males of the genus, and by the stout and conical RTA ( Figs 6D, F View Fig , 20C), but can be easily distinguished by their long, free and filiform embolus ( Fig. 6C, E View Fig ).

Material examined

Holotype BRAZIL • ♂; Rio de Janeiro, Teresópolis; C.F. Mello-Leitão leg.; MNHN 11467 View Materials .  

Additional material

BRAZIL – Rio de Janeiro State • 1 ♂; Nova Friburgo; 22°22′11″ S, 42°27′52″ W; 30 Aug. 1996; R.S. Bérnils leg.; MZSP 15320 View Materials GoogleMaps   . – São Paulo State • 1 ♂; Estação Biológica de Boracéia; 23°37′51″ S, 45°52′11″ W; Jul. 2005; A.D. Brescovit leg.; IBSP 55197 View Materials GoogleMaps   . – Paraná State • 1 ♂; Pinhais ; 25°23′45″ S, 48°55′58″ W; 15–20 Oct. 1995; lab staff leg.; MCTP 7665 View Materials GoogleMaps   .

Description

Male (MZSP 15320)

PROSOMA. Anterior eye row strongly recurved, ALE slightly larger than AME ( Fig. 6B View Fig ); posterior eye row in a straight line with equal sized eyes. Carapace predominantly dark-brown with a longitudinal yellow line that goes from the middle of PME to the edge of the MS ( Fig. 6A View Fig ); clypeus region and ocular tubercles lighter than the rest of the prosoma ( Fig. 6B View Fig ).

LEGS. Legs I and II reddish-brown, coxae I and II dark-brown with yellowish stains; legs III and IV darkbrown except by the femora which are yellow on its proximal region.

OPISTHOSOMA. Rough surfaced, predominantly yellow with dark-brown stains between the abdominal projections and on the sides; lateral projections orange and median dark-brown ( Fig. 6A View Fig ).

MEASUREMENTS. Eye diameters and eye interdistances: AME 0.06, ALE 0.11, PME 0.08, PLE 0.08, AME–AME 0.09, AME–ALE 0.11, PME–PME 0.17, PME–PLE 0.08, MOQ length 0.40, MOQ width 0.38; leg formula: 1-2-4-3: leg I – femur 2.43/ patella 1.04/ tibiae 1.61/ metatarsus 0.96/ tarsus 0.72/ total 6.76; II – 2.22/ 0.88/ 1.25/ 0.88/ 0.59/ 5.82; III – 1.12/ 0.64/ 1.01/ 0.56/ 0.48/ 3.81; IV – 1.29/ 0.61/ 0.96/ 0.64/ 0.53/ 4.03. Total body length 5.28; prosoma 2.59 length, 2.43 width; opisthosoma length 2.69; clypeus 0.27 height; sternum 0.96 length, 0.88 width; endites 0.43 length, 0.24 width; labium 0.27 length, 0.32 width.

Female

Unknown.

Distribution

Brazil (Paraná, Rio de Janeiro and São Paulo) ( Fig. 9 View Fig ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Thomisidae

Genus

Kryptochroma

Loc

Kryptochroma macrostyla ( Mello-Leitão, 1929 )

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

Stephanopis macrostyla Mello-Leitão, 1929: 61

Mello-Leitao C. F. 1929: 61
1929