Cryptachaea migrans ( Keyserling, 1884 ), Keyserling, 1884

Santanna, Manoela, Rodrigues, Everton Nei Lopes, Cizauskas, Igor & Brescovit, Antonio Domingos, 2019, On the spider genus Cryptachaea from Peru, Bolivia and cave environments in Brazil: a new species, additional descriptions and new records (Araneae, Theridiidae), Zootaxa 4646 (2), pp. 271-292: 280-284

publication ID

https://doi.org/10.11646/zootaxa.4646.2.4

publication LSID

lsid:zoobank.org:pub:E031D297-36C5-46D3-A7B0-7355719AAD64

persistent identifier

http://treatment.plazi.org/id/03D80F63-FFBD-FFA9-FF0F-79DDFB60FB69

treatment provided by

Plazi

scientific name

Cryptachaea migrans ( Keyserling, 1884 )
status

 

Cryptachaea migrans ( Keyserling, 1884)  

Figs. 15–19 View FIGURES 15–19 , 26–31 View FIGURES 26–31 , 33 View FIGURE 33

Theridium migrans Keyserling, 1884: 18   , pl. 1, fig. 6, female lectotype from Lechugal, Tumbes, Peru, in the Polish Academy of Sciences, Warsaw, examined.

Tidarren fordum luctuosum Caporiacco, 1954: 77   , female holotype from St. Jean du Maroni, French Guiana, in the Muséum National d’Histoire Naturelle, Paris, (synonymized by Levi, 1963: 225).

Achaearanea migrans: Levi, 1963: 225   (transferred from Theridion   ).

Cryptachaea migrans: Yoshida, 2008: 39   (transferred from Achaearanea   ).

Achaearanea uviana Levi, 1963: 218   , fig. 44, male holotype from Utcuyacu, Junín, 1600–2200m elev., Peru, 4 April 1948, F. Woytkowski leg., in the American Museum of Natural History, examined. New Synonymy.

Cryptachaea uviana: Yoshida, 2008: 39   (transferred from Achaearanea   ).

Note. Keyserling (1884) described Cryptachaea migrans   based on the female from Peru and Levi (1963) described Cryptachaea uviana   based on the male from Peru too. From the examination of the types, the drawings by Levi (1963) and the examination of some males and females collected together in many localities in Brazil (Volta Redonda, state of Rio de Janeiro, in Canaã dos Carajás, state of Pará and Antonina   , state of Paraná), and Bolivia (Beni) and male and female have the same color pattern, made it clear that these names are synonyms. Here we present for the first time SEM images of the male palp ( Figs. 26–30 View FIGURES 26–31 ) and of the epigynum ( Fig. 31 View FIGURES 26–31 ) of this species, illustrations of the male and female ( Figs. 15–17 View FIGURES 15–19 ), and photos of the both sexes ( Figs. 18, 19 View FIGURES 15–19 ).

Diagnosis. The male palpus of Cryptachaea migrans   resembles that of Cryptachaea altiventer ( Keyserling, 1884)   (see Levi, 1963: fig. 45), by the shape of cymbium, with projected apex and conductor which follows the path of the embolus to the apex ( Figs. 15 View FIGURES 15–19 , 26–29 View FIGURES 26–31 ), but differs by the curved embolus and slender conductor, apex of the cymbium elongated, hood-shaped (hat) ( Fig. 15 View FIGURES 15–19 , 26–29 View FIGURES 26–31 ). The epigynum has a pair of oval spermathecae ( Fig. 17 View FIGURES 15–19 ), two copulatory openings located in the medial region of the epigynal plate ( Fig. 16 View FIGURES 15–19 ) and copulatory ducts forming a loop ( Fig. 17 View FIGURES 15–19 ) as in Cryptachaea anastema ( Levi, 1963)   (see, Levi, 1963: fig. 57,58), but differs by having the copulatory ducts longer and fertilizations ducts longer, forming a loop ( Fig. 17 View FIGURES 15–19 ).

Description. Male ( IBSP 174281): Total length 1.36. Carapace: length 0.64, width 0.51. Clypeus height: 0.13. Sternum: length 0.40, width 0.37. Chelicerae: length 0.17, width 0.06. Abdomen: length: 0.71, width 0.51, height 0.61. Leg formula IV/II/I/III. Segment length (I/II/III/IV): femora 0.85/0.51/0.40/0.64; patellae+tibiae 0.78/0.54/0.37/0.54; metatarsi+tarsi-/0.71/0.37/0.71; total: 1.63/1.77/1.15/1.90. Palp: femora 0.03, patellae 0.06, tibiae 0.03, cymbium 0.37. AME are the largest. Eyes with dark borders ( Fig. 18 View FIGURES 15–19 ). Carapace oval, dark brown with dark borders ( Fig. 18 View FIGURES 15–19 ). Clypeus brown, laterally concave. Chelicerae yellow with brown spots. Labium yellow, subquadrangular. Endites yellow, subquadrangular. Sternum brown. Legs grayish brown, except femora yellow. Abdomen oval ( Fig. 18 View FIGURES 15–19 ), black with a white stripe going down on each side and a pair of white spots side by side on venter, ventrally brown. Spinnerets yellow. The male palpus have the cymbium long, expanded at its tip ( Figs. 15 View FIGURES 15–19 , 26–29 View FIGURES 26–31 ), tarsal organ developed ( Fig. 30 View FIGURES 26–31 ), conductor with laminar shape and pointed distal end ( Figs. 15 View FIGURES 15–19 , 26–28 View FIGURES 26–31 ), embolus with strong base ( Figs. 15 View FIGURES 15–19 , 26, 27 View FIGURES 26–31 ) and the tegulum subcircular and larger ( Figs. 15 View FIGURES 15–19 , 26–28 View FIGURES 26–31 ), with light sinuous ducts ( Fig. 15 View FIGURES 15–19 ). Cymbium with many long macrosetae ( Figs. 26–30 View FIGURES 26–31 ).

Female ( IBSP 174282). Total length 3.84. Carapace: length 1.49, width 1.22. Clypeus height: 0.23. Sternum: length 0.81, width 0.78. Chelicerae: length 0.44, width 0.17. Abdomen: length: 2.17, width 1.87, height 1.80. Leg formula I/IV/II/III. Segment length (I/II/III/IV): femora 1.84/1.56/1.15/1.87; patellae+tibiae 2.41/1.42/1.02/1.66; metatarsi+tarsi 2.89/1.80/1.36/2.14; total: 7.15/4.79/3.53/5.67. Palp: femora 0.27, patellae 0.17, tibiae 0.20, tarsi 0.37. All eyes with the same size. Carapace, clypeus, chelicerae, labium, endites and sternum as in male. Legs yellow, except distally brown ( Fig. 19 View FIGURES 15–19 ). Femur I presence of a comb of bristles distributed serially in ventral view. Abdomen oval ( Fig. 19 View FIGURES 15–19 ), dark brown with white stripes on dorsum, ventrally brown with a white spot on the venter. Epigynum ( Fig. 16, 17 View FIGURES 15–19 , 31 View FIGURES 26–31 ) with spermathecae oval, copulatory ducts non-sinuous ( Fig. 17 View FIGURES 15–19 ), and curved fertilization ducts ( Fig. 17 View FIGURES 15–19 ).

Variation. The color pattern is quite variable in both sexes from dark brown to brown in carapace. The white spots in the abdomen can be further dispersed. The legs may be lighter, light yellow to brown. Males (n=5): Total length 1.15–1.36. Carapace: length 0.61–0.64, width 0.47–0.51. Femur leg I 0.85–0.91. Females (n= 8): Total length 3.29–4.11. Carapace: length 1.32–1.49, width 1.15–1.22. Femur leg I 1.84–2.55.

Distribution. Venezuela, British Guiana, French Guiana, Brazil (states of Amazonas, Pará, Alagoas, Espírito Santo, and Paraná), Peru and Bolivia ( Fig. 33 View FIGURE 33 ).

Material examined. Epigean material: PERU: Madre de Dios, Zona Reservada Tambopata (12°55'57''S; 69°16'50''W), 1M, D. Silva coll., 19.V.1988 ( MCN 17802 View Materials ); BOLÍVIA: Beni, Beni Biological Station (14°38'34''S; 66°17'54''W), 1 M, H. Höfer & A. D. Brescovit coll., 27–29.VII.1997 ( MCN 24676 View Materials ) GoogleMaps   , 1M ( MCN 24686 View Materials )   ; BRAZIL: Amazonas, Manaus, Fazenda Esteio Km 41 (2°54'1''S; 60°7'7'W'), 1 F, A. D. Brescovit coll., I.1994 ( MCN 25133 View Materials )   ; Cave material: Pará, Parauapebas, FLONA de Carajás , Cave N4E_0089 (GEM-1562) (6°1'59''S; 50°9'6''W), 1M, 24–30.VII.2009 ( IBSP 175378 View Materials ) GoogleMaps   ; Cave S11D_0059 (705) (6°24'27702''S; 50°18'46''W), 1F, 01–14.VII.2010 ( IBSP 174297 View Materials )   ; Cave S11D_0074 (720) (6°23'33576''S; 50°19'7''W), 1F, 13–30.I.2010 ( IBSP 175825 View Materials )   ; Cave S11_0008 (S11-08) (6°25'14304''S; 50°17'12''W), 1F, 03–19.VIII.2010 ( IBSP 175865 View Materials )   ; Cave S11_0022 (S11-22) (6°25'3''S; 50°18'7''W), 1F, 03–19.VIII.2010 ( IBSP 175867 View Materials ) GoogleMaps   ; Cave S11_0023 (S11-23) (6°25'24''S; 50°18'0''W), 1F, 24.II–04.III.2010 ( IBSP 174278 View Materials ) GoogleMaps   ; Cave S11_0025 (S11-25) (6°25'19''S; 50°18'20''W), 1F, 24.II–04.III.2010 ( IBSP 175836 View Materials ) GoogleMaps   , 1M, 03–19.VIII.2010 ( IBSP 174279 View Materials )   ; Cave CAV_0025 (CAV-25) (6°24'56''S; 50°21'40''W), 1F, 22–31.V.2010 ( IBSP 175847 View Materials ) GoogleMaps   ; Cave CAV_0028 (CAV-28) (6°24'32”S; 50°22'9''W), 1F, 22–31.V.2010 ( IBSP 175849 View Materials ) GoogleMaps   ; Cave CAV_0032 (CAV-32) (6°25'36''S; 50°19'26''W), 1F, 22–31.V.2010 ( IBSP 175850 View Materials ) GoogleMaps   ; Cave CAV_0009 ( CAV _09) (6°25'21''S; 50°19'32''W), 1F, 22–28.IX.2010 ( IBSP 175857 View Materials ) GoogleMaps   all collected by R. Andrade & I. Cizauskas et al.; Serra da Bocaina, Cave   SB_0011 (GEM-1431) (6°17'7''S; 49°55'35''W), 1F, 29.VIII–27.IX.2012 ( IBSP 183367 View Materials ) GoogleMaps   ; Cave SB_0021 (GEM-1441) (6°19'29''S; 49°58'24''W), 1F, 01.IV.2011 ( IBSP 183365 View Materials ) GoogleMaps   ; Cave SB_0090 (GEM-1506) (6°18'38''S; 49°54'40''W), 1F, 10–31.I.2013 ( IBSP 183368 View Materials ) GoogleMaps   ; Cave SB_0094 (GEM-1510) (6°18'1''S; 49°57'9''W), 1F, 29.VIII–27.IX.2012 ( IBSP 174280 View Materials ) GoogleMaps   ; Cave SB_0109 (6°21192'0''S; 49°58'35''W), 1M, 10–31.I.2013 ( IBSP 174281 View Materials )   ; Cave SB_0112 (GEM-1525) (6°21'11''S; 49°58'35''W), 1F, 20–26.VI.2013 ( IBSP 183577 View Materials ) GoogleMaps   ; Cave SB_0114 (GEM-1527) (6°21'10''S; 49°58'37''W), 2F, 20–26.VI.2013 ( IBSP 174282 View Materials ) GoogleMaps   , 2F, 10–31.I.2013 ( IBSP 183371 View Materials )   , 1F ( IBSP 183372 View Materials )   ; Cave SB_0115 (GEM-1528) (6°21'12''S; 49°58'37''W), 1F, 20.IX–01.X.2011 ( IBSP 183366 View Materials ) GoogleMaps   ; Cave SB_0119 (GEM-1539) (6°21'12''S; 49°58'43''W), 1F, 10–31.I.2013 ( IBSP 183370 View Materials ) GoogleMaps   ; Cave SB_0124 (GEM-1592) (6°21'15''S; 49°59'8''W), 2F, 10–31.I.2013 ( IBSP 183369 View Materials ) GoogleMaps   ; Cave SB_0170 (6°18'36''S; 50°0'10''W), 1F, 08–22.V.2013 ( IBSP 183573 View Materials ) GoogleMaps   , 1M, 10–20.IX.2013 ( IBSP 174283 View Materials )   ; Cave SB_0185 (6°20'39156''S; 49°58'15''W), 1F, 08–22.V.2013 ( IBSP 183574 View Materials )   , 1M ( IBSP 183575 View Materials )   ; Cave SB_0220 (6°18'3''S; 49°57'56''W), 1F, 08–22.V.2013 ( IBSP 183576 View Materials ) GoogleMaps   ; Cave SB_0231 (6°20'31''S; 49°59'43''W), 1M, 13–23.II.2014 ( IBSP 183579 View Materials ) GoogleMaps   ; Cave SB_0234 (6°20'27''S; 49°54'17''W), 1M, 12–22.X.2013 ( IBSP 183578 View Materials ) GoogleMaps   all collected by C. A. R. Souza & J. Mascarenhas et al. coll.; Alagoas, Murici, Estação Ecológica de Murici (9°15'S; 35°51''W), 1M, Equipe Biota coll., 13–22.IX.2003 ( MCN 43784 View Materials )   ; Rio de Janeiro, Rio de Janeiro, Floresta da Cicuta (2°12'S; 43°16'W), 1M, Equipe Biota coll., 11–18.VI.2001 ( MCN 42346 View Materials ) GoogleMaps   , 1M ( MCN 42381 View Materials )   , 1M ( MCN 42382 View Materials )   ; Paraná, Antonina, Reserva   Natural do Rio Cachoeira (25°25'53''S; 48°44'39''W), 1M, 2 F, E. Alvares coll., 23.IX.2005 ( MCN 45899 View Materials ) GoogleMaps   .

IBSP

Instituto Biologico de Sao Paulo

MCN

McNeese State University

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Theridiidae

Genus

Cryptachaea

Loc

Cryptachaea migrans ( Keyserling, 1884 )

Santanna, Manoela, Rodrigues, Everton Nei Lopes, Cizauskas, Igor & Brescovit, Antonio Domingos 2019
2019
Loc

Theridium migrans

Keyserling, E. 1884: 280
1884