Ariadna crassipalpa ( Blackwall, 1863 ), Blackwall, 1863

Giroti, André Marsola & Brescovit, Antonio Domingos, 2018, The taxonomy of the American Ariadna Audouin (Araneae: Synspermiata: Segestriidae), Zootaxa 4400 (1), pp. 1-114: 29-33

publication ID

http://doi.org/ 10.11646/zootaxa.4400.1.1

publication LSID

lsid:zoobank.org:pub:59CC08B8-5B13-42EC-943E-C930D7D0DD7F

persistent identifier

http://treatment.plazi.org/id/039B87D1-FFF8-B13A-169B-FAFFC478FE51

treatment provided by

Plazi

scientific name

Ariadna crassipalpa ( Blackwall, 1863 )
status

 

Ariadna crassipalpa ( Blackwall, 1863)  

Figures 1C View FIGURE 1 , 18‒19 View FIGURE 18 View FIGURE19 , 72 View FIGURE 72

Dysdera crassipalpus Blackwall, 1863: 43   (♂ holotype from Rio de Janeiro, Brasil, deposited in Oxford Museum of Natural History, England, not examined).— Beatty (1970: 483, as nomem dubium). Ariadna   crassipalpus— Mello-Leitão (1947: 234, Transf. from Dysdera   ).— Camargo (1950: 445, Descr. ♀, = A. mollis   , present study).

Ariadna   crassipalpa— World Spider Catalog (2018).

Note. This species was identified based on the original description from Blackwall (1863). The alotype described by Camargo (1950) was examined, and after the study of the internal genitalia it was observed that it represents a misidentification of an Ariadna mollis   specimen.

Additional material examined: BRASIL: São Paulo State: Piracaia [23°03'14''S; 46°21'28"W], 2♀, 18.III.1991, S.C. de Castro leg. ( IBSP 4206 View Materials ) GoogleMaps   ; São Paulo, Parque Estadual do Jaraguá [23°27'34.3''S; 46°46'02.8''W], 1♂, 3.III.2011, R.P. Indicatti leg. ( IBSP 166962 View Materials ) GoogleMaps   ; Mogi das Cruzes [23°31'22"S; 46°11'16"W], Parque Natural Municipal da Serra do Itapety , 1♂, 2003, Exp. Biota leg. ( IBSP 54640 View Materials ) GoogleMaps   ; Mogi das Cruzes [23°31'22''S; 46°11'16''W], 1♀, V.1977, C.T.S. Filho leg. ( MZSP 10431 View Materials ) GoogleMaps   ; São Paulo [23°32'52"S; 46°38'09"W], 1♂, 17.V.2006, N. Carvalho leg. ( IBSP 72613 View Materials ) GoogleMaps   ; Salesópolis [23°37'51"S; 45°52'11"W], Estação Ecológica de Boracéia , 1♀, VII.2005, A.D. Brescovit et al. leg. ( IBSP 55304 View Materials ) GoogleMaps   ; Cotia, Caucaia do Alto, Reserva Florestal do Morro Grande [23°40'S; 47°01'W], 1♀, 13‒30.VI.2002, A.A. Nogueira et al. leg. ( IBSP 118014 View Materials ) GoogleMaps   ; Itanhaém, Ilha da Queimada Grande [24°29'08.5''S; 46°40'31.22''W], 1♀, 20.III.1995, E. Butantan leg. ( IBSP 10034 View Materials ) GoogleMaps   ; Rio de Janeiro State: Teresópolis, Parque Nacional da Serra dos Órgãos (22°27'23.4''S; 42°59'41.4''W), 1♀, 22‒25.I.2011, G.H.F. Azevedo et al. leg. ( UFMG 10200 View Materials ) GoogleMaps   ; Itatiaia, Parque Nacional do Itatiaia, Maromba , Cachoeira Véu de Noiva (22°25'41.1''S; 44°36'40''W), 4♀, 18.IV.2014, A. Benedetti & J. Cabra-García leg. ( IBSP 166965 View Materials ) GoogleMaps   ; Itatiaia [22°29'29"S; 44°33'33"W], Parque Nacional do Itatiaia , 1100m, 1♀ 1imm., 20‒30.V.2013, R.P. Indicatti et al. leg. ( IBSP 166963 View Materials ) GoogleMaps   ; same locality, 2450m, 3♀ 1imm., 16‒28.VII.2013, R.P. Indicatti & B. Gambaré leg. ( IBSP 166964 View Materials ) GoogleMaps   ; Petrópolis [22°30'18''S; 43°10'44''W], 1♀, I.1982, M. Maluf leg. ( IBSP 4941 View Materials ) GoogleMaps   ; Rio de Janeiro, Parque Estadual da Pedra Branca [22°56'26''S; 43°28'50''W], 300m, 1♀, 3.XII.1939, Schubart leg. ( MNRJ 2063 View Materials ) GoogleMaps   ; Santa Catarina State: Chapecó [27°13'S; 52°33'W], Lageado Monte Alegre , 1♂, 2001‒2002, J.M. Marques leg. ( IBSP 93752 View Materials ) GoogleMaps   ; Reserva Biológica do Arvoredo [27°17'57''S; 48°21'23''W], 3♀, 5‒6.X.1995, A.A. Lise et al. leg. ( MCTP 7486 View Materials ) GoogleMaps   ; Florianópolis [27°35'49"S; 48°32'56"W], Lagoa do Perí , 1♀, 2012, A.L. Trivia & A. Chagas leg. ( IBSP 166966 View Materials ) GoogleMaps   ; Rio Grande do Sul State: Guaporé [28°50'45"S; 51°53'24"W], 1♂, 1.VI.1991, M.D. Bernard leg. ( MCTP 0970 View Materials ) GoogleMaps   ; Caxias do Sul [29°10'04"S; 51°10'44"W], Bairro Centenário , 1♀, 31.II.2012, R.P. Indicatti leg. ( IBSP 166968 View Materials ) GoogleMaps   ; Cambará do Sul, Área de Preservação Ambiental Celulose Cambará [29°02'52''S; 50°08'42''W], 2♀ 4imm., 19‒21.XII.1994, A.B. Bonaldo leg. ( MCN 25977 View Materials ) GoogleMaps   ; Cambará do Sul, Parque Nacional Aparados da Serra [29°11'30"S; 50°05'51"W], 1♂ 1♀ 2imm., 20‒24.VII.2012, R.P. Indicatti & B. Gambaré leg. ( IBSP 166967 View Materials ) GoogleMaps   ; 1♀, 2‒10.I.2013, R.P. Indicatti leg. (IBSP 166969); Garibaldi [29°15'21''S; 51°32'02''W], 1♀, 20.VII.1974, O. Simonaggio leg. ( MCN 2400 View Materials ) GoogleMaps   ; Canela, Cascata do Caracol [29°21'57"S; 50°48'57"W], 1♀, 7.X.1967, A.A. Lise leg. ( MCN 11762 View Materials ) GoogleMaps   ; 13♀ 10imm., 19. II.1 966 (MCN 11763); Canela [29°21'57"S; 50°48'57"W], 1♂, 3.VII.1965, A.A. Lise leg. ( MCN 3846 View Materials ) GoogleMaps   ; 30♀ 27imm., 3.II.1967 (MCN 0551; 0552; 01460); 8♀ 10imm., 20.XII.1966 (MCN 0712); Gramado [29°22'44"S; 50°52'26"W], 1♀, 7.IV.2007, A.A. Lise leg. ( MCTP 20337 View Materials ) GoogleMaps   ; 1♀ 1imm., 20.IV.2008, A.A. Lise leg. (MCTP 20462); Capão da Canoa [29°45'39"S; 50°1'48"W], 9♀ 23imm., 9.VII.1963, C.A. Hartlieb leg. ( MCN 1345 View Materials ) GoogleMaps   ; Porto Alegre [30°01'58"S; 51°13'48"W], 1♀, IV.1985, R. Baião leg. ( MCN 14400 View Materials ) GoogleMaps   ; 2♂, 19.V.1973, S.L. Cardoso leg. (MCN 3577); Retiro Ponta Grossa , 1♀, XI.2003 ( MCN 37024 View Materials )   ; Guaíba [30°06'50''S; 51°19'30''W], Sertão Santana , 1♀, 19.IX.1976, H. Bischoff leg. ( MCN 4443 View Materials ) GoogleMaps   ; Palmares do Sul [30°15'28"S; 50°30'36"W], Lagoa do Capivari , 1♂, 20.V.2004, E. Probio leg. ( MCN 37391 View Materials ) GoogleMaps   ; Encruzilhada do Sul [30°32'38''S; 52°31'19''W], 2♀, 7.IX.1990, M.A. Pavanato leg. ( IBSP 209942 View Materials ) GoogleMaps   .

Diagnosis. Ariadna crassipalpa   is similar to A. mollis   , A. boesenbergi   , A. calilegua   , A. changellkuk   , A. levii   and A. perkinsi   due to the dark abdominal pattern with arrow-shaped marks ( Figs 1A ‒C View FIGURE 1 , 18A, F View FIGURE 18 , 20A, F View FIGURE 20 , 22A, F View FIGURE 22 , 31A, E View FIGURE31 , 45A, F View FIGURE 45 , 47A, F View FIGURE 47 , 50A, F View FIGURE 50 ), but differ, except A. mollis   and A. calilegua   , by the presence of males with sinuous metatarsi I, bearing a short and curved ventro-prolateral macrosetae in its median region, sometimes in a small apophysis ( Fig. 18C ‒E View FIGURE 18 ); it differs from A. mollis   by presenting a more incrassated palpal tibia, with the dorsoventral diameter similar to the bulb, and from A. calilegua   by having the curvature of the mid-portion and embolus less marked, and a thicker embolus ( Fig. 19A ‒B View FIGURE19 ); females differ from these species, except A. calilegua   , by having the anterior receptaculum with an irregular cuticle, with conspicuous grooves ( Fig. 19C ‒D View FIGURE19 ); it differs from A. calilegua   by the patellae I ‒II without prolateral macrosetae ( Fig. 18H View FIGURE 18 ).

Description. Male ( MCN 3577): Carapace and chelicerae brownish orange ( Fig. 18A View FIGURE 18 ). Endites orange; labium dark orange. Sternum orange, with darker margins, and marbled with dark pigment ( Fig. 18B View FIGURE 18 ). Palps light orange ( Fig. 19A ‒B View FIGURE19 ). Legs orange, with pairs I ‒II darker, and dark pigment forming diffuse rings in the distal region of tibia and metatarsus ( Fig. 18C ‒E View FIGURE 18 ). Abdomen whitish grey, with a conspicuous dark dorsal pattern comprising arrow-shaped marks, and anterior ventral region dark ( Fig. 18A ‒B View FIGURE 18 ). Total length: 7.28; carapace 3.92 long, 2.72 wide. Chelicerae projected ( Fig. 18A View FIGURE 18 ). Palps: tibia incrassated, with the dorso-ventral diameter similar to the bulb; bulb sub-rectangular, mid portion slightly shorter than the embolus; embolus curved and thickened, with a twisted tip ( Fig. 19A ‒B View FIGURE19 ). Legs: robust and coated with setae ( Fig. 18C ‒E View FIGURE 18 ); tarsal brush of putative chemosensory setae present in legs II ‒IV. Leg formula: I-II-IV-III. Leg measurements: I femur 3.84, patella 1.56, tibia 3.16, metatarsus 3.48, tarsus 0.72, total 12.76; II 3.48, 1.48, 3.08, 3.24, 0.76, 12.04; III 2.68, 1.2, 1.8, 2.16, 0.72, 8.56; IV 3.04, 1.4, 2.2, 2.24, 0.68, 9.56. Macrosetae: I, femur D0-0-0-0-1-0-2-0, P0-0-0-0-1-1-0-0; patella P0-0-1; tibia P0/ 1-1-0-1-0-1-0, vp2-0-0-0-0-0-1, vr2-0-1-0-1/2-0-1, R1-1-0-1-0-1-0; metatarsus vp1/0-0-0-1(claw-shaped, curved shaft with pointed tip)-0-0-1, vr1/0-0-0-1-0-0-1 ( Fig. 18C ‒E View FIGURE 18 ); II, femur D0-0-0-0-0-0-2-0, P0-0-0-0-0-1-1-0; patella P0-0-1; tibia P0-1-0-1-0-1-0, vp0-0-1-0-1-0-1, vr2-0-1-0-1-0-1, R1-1-0-1-0-1-0; metatarsus vp1-0-0-1-0-0- 1, vr1-0-0-1-0-0-1, r0-1-0-0-0-1-0; IV, femur D1-1-0-1-0-1-0-1-0; metatarsus, vp0-1/0-0-0-1-0-1, vr metatarsal comb with 6 macrosetae.

Female ( MCN 0551). Carapace and chelicerae reddish orange ( Fig. 18F View FIGURE 18 ). Endites reddish orange; labium dark reddish orange. Sternum reddish orange, with darker margins, and marbled with dark pigment ( Fig. 18G View FIGURE 18 ). Palps reddish orange, darkening gradually in distal direction. Legs reddish orange, with pairs I ‒II darker and dark pigment distributed in femur, patellae and tibiae, and forming rings in the distal region of metatarsi ( Fig. 18H ‒I View FIGURE 18 ). Abdomen as in male ( Fig. 18F ‒G View FIGURE 18 ). Total length: 14.48; carapace 6.92 long, 4.4 wide. Carapace with cephalic region elevated. Chelicerae not projected ( Fig. 18F View FIGURE 18 ). Legs: robust and densely coated with setae, mainly on the ventral region of pairs I ‒III; legs I ‒II with ventro-prolateral and ventro-retrolateral tibial macrosetae of similar size, and metatarsal macrosetae of different sizes ( Fig. 18H ‒I View FIGURE 18 ). Leg formula: I-II-IV-III. Leg measurements: I femur 4.92, patella 2.48, tibia 3.68, metatarsus 3.64, tarsus 0.92, total 15.64; II 4.4, 2.4, 3.76, 3.56, 0.92, 15.04; III 3.68, 1.84, 2.6, 2.68, 0.92, 11.72; IV 4.2, 2.4, 3.44, 2.88, 0.96, 13.88. Macrosetae: I, femur D0-0-0-0-0-2-0, P0-0-0-0-2- 1-0; tibia P0-1-0-1-0-1-0, vp1-0-1-0-1-0-1, vr1-0-1-0-1-0-1, R0-1-0-0-0-0-0; metatarsus vp1-1-1-1-1-1-1-1-1-1, vr1-1-0/1-1-1-1-1-1-0/1-1-1 ( Fig. 18H ‒I View FIGURE 18 ); II, femur D0-0-0-0-0-2-0, P0-0-0-0-1-1-0; patella P0-1-0; tibia P0-1-0- 1-0-1-0, vp0-0-1-0-1-0-1, vr1-0-1-0-1-0-1; metatarsus vp1-1-1-1-1-1-1-1-1-1-1-1, vr1-1-1-0-1-0-1-1-1-1-0/1-1; IV, metatarsus vp0-0-0-0-0-0-1, vr metatarsal comb with 5 macrosetae. Internal genitalia: anterior receptaculum with lobes of similar size and glandular ducts plate located in the median region ( Fig. 19C ‒D View FIGURE19 ).

Variation. Male (n=10): Total length: 5.84‒8.72; carapace 3.2‒4.6 long, 2.32‒3.04 wide; femur I 3.24‒4.72. Female (n=10): Total length: 10.96‒14.8; carapace 5.36‒6.92 long, 3.44‒4.4 wide; femur I 3.68‒4.92.

Distribution. South and southeast of Brazil ( Fig. 72 View FIGURE 72 ).

MCN

McNeese State University

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Segestriidae

Genus

Ariadna

Loc

Ariadna crassipalpa ( Blackwall, 1863 )

Giroti, André Marsola & Brescovit, Antonio Domingos 2018
2018
Loc

Dysdera crassipalpus

Blackwall 1863: 43
1863
Loc

Ariadna

Audouin 1826
1826
Loc

Ariadna

Audouin 1826
1826
Loc

Dysdera

Latreille 1804
1804