Sidymella furcillata

Notice:

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Taxonavigation

Ordo: Araneae
Familia: Thomisidae
Genus: Sidymella

Name

Sidymella furcillata (Mello-Leitão, 1944) – Wikispecies link – Pensoft Profile

• Sidyma spinifera Mello-Leitão, 1943: 209, f. 36 (♀; preoccupied by Mello-Leitão 1929).
• Sidyma multispinulosa Mello-Leitão, 1944: 4 (replacement name). Lise 1973: 13, figs 24–33 (holotype ♀ from Santa Catarina, Brazil, P. Buck leg., MNRJ 41934, examined). (New synonymy)
• Stephanopis furcillata Keyserling, 1880: 179, pl. 4, fig. 98 (holotype ♀ from Santa Cruz, Rio Grande do Sul, Brazil, Hensel leg., ZMB 2406, examined). (New combination)

Material examined

ARGENTINA: 1j, Misiones, San Vicente, 26°55'12"S, 54°31'12"W, 12.i.2005, L. Lopardo et al. leg. (ICN-Ar 27642); 1j, same locality, viii.1954, Schiapelli de Carlo leg. (ICN-Ar 19099); 2j, same locality, 1954, Schiapelli de Carlo leg. (ICN-Ar 19096). BRAZIL: 1♂, Bahia: Maracás, 13°28'15"S, 40°26'16"W, 14.iii.2012, E.S. Araújo & A.S Medeiros leg. (UFMG 15165); 1♂, São Paulo, Botucatu (Rubião Júmior), 22°53'53"S, 48°29'23"W, 15.ii.1966, V.C. Jesus leg. (MNRJ 10391); 1♀, Paraná: Colombo, 25°17'31"S, 49°13'26"W, 02.xii.1990 (MCN 20684); 1♂, Três barras do Paraná, 25°25'08"S, 53°10'51"W, 20–26.ii.1993 (MCN 23043); 1♀, Curitiba (Parque Birigui), 25°25'31.58"S, 49°18'38.69"W, 01.xii.1990, A.B. Bonaldo leg. (MCN 20626); 1♀, Curitiba, 25°25'47"S, 49°16'19"W, 15.iv.2005, J. Ricetti leg. (MCTP 37237); 1♀, Santa Catarina: Itapiranga, 27°10'08"S, 53°42'43"W, Pio Buck leg. (MNRJ 41934); 2♀, 3j, Rancho Queimado, 27°40'22"S, 49°01'19"W, 13–15.i.1995 (MCN 26464); 1♂, Rio Grande do Sul, Tenente Portela, 27°22'25.69"S, 53°47'32.43"W, 11.ix.1976, S. Scherer leg. (MCN 4862); 1♀, Nonoai (Parque Estadual de Nonoai), 27°27'21.25"S, 53°6'46.98"W, 14.i.1985, A.A. Lise leg. (MCN 13077); 1♀, Arroio do Meio, 29°23'47.15"S, 51°56'54.26"W, 09.i.1985, same collector (MCN 13071); 1j, Iraí, 27°11'38"S, 53°15'03″W, 20 September 1975, same collector (MCN 8084); 1♂, Derrubadas (Parque Estadual do Turvo), 27°13'57"S, 53°51'04"W, 16.i.1985, same collector (MCN 13057); 1♀, same locality, 01 February 1996, A.B. Bonaldo, A. Kury & R. Pinto-da-Rocha leg. (MCN 27100); 1j, 27–31.viii.2003, R. Ott leg. (MCN 37827); 1j, Caxias do Sul, 29°07'17"S, 51°01'07"W, 18–21.xi.1993 (MCTP 4176); 1♀, Farroupilha, 29°13'30"S, 51°20'52"W, 29.ix.1978, H. Bischoff leg. (MCN 8268); 1♀, 2 j, same data as preceding (MCN 8270); 1♂, Estrela Velha (Barragem de Itaúba), 29°15'19"S, 53°13'36"W, 07.iii. 2001, R. Ott leg. (MCN 33700); 1♀, São Francisco de Paula (Barragem Passo do Inferno), 29°16'29"S, 50°44'15"W, 26.ix.2000, M.A.L. Marques leg. (MCN 33220); 1♀, São Francisco de Paula, 29°27'00"S, 50°34'59"W, 10.xii. 2007, L. Moura & R. Moraes leg. (MCN 43748); 1♀, Parobé (Rio dos Sinos), 29°37'29"S, 50°49'56"W, 11.v. 2008, E.N.L. Rodrigues leg. (MCN 47943), 1♀, Maquiné, 29°39'41"S, 50°12'47"W, 08–09.iii.1998, L.A. Moura leg. (MCN 29060); 1♀, Campo Bom, 29°40'44"S, 51°3'10"W, 19–20.v.1986, C.J. Becker leg. (MCN 15080); 2♀, Santa Maria, 29°40'59"S, 53°48'00"W, 17.iv.1996, C.B. Kotzian & L. Indrusiak leg. (MCTP 40093); 1j, Montenegro, 29°41'20"S, 51°27'39"W, 06.viii.1977, H. Bischoff leg. (MCN 6822); 1j, same locality, 03.xi.1977, A.A. Lise leg. (MCN 7141); 1♂, 1♀, 3j, same locality, 15.xii.1977, same collector (MCN 7510); 1♀, same locality, 20.xii.1977, same collector (MCN 7614); 1j, same locality, 03.xi.1977, same collector (MCN 8089); 2j, same locality, 29.ix.1977, same collector (MCN 9058); 5j, same data as preceding (MCN 9059); 1♀, São Leopoldo, 29°45'36"S, 51°8'49"W, 12.vi.1992 (MCN 24755); 2♀, 3j, Montenegro (Pesqueiro), 29°46'16"S, 51°23'57"W, 12.v.1977, A.A. Lise leg. (MCN 5323); 1♀, Santo Antônio da Patrulha, 29°49'4"S, 50°31'12"W, 18.vii.2000, same collector (MCN 33116); 2♀, Triunfo (Parque Copesul de Proteção Ambiental), 29°51'57"S, 51°21'54"W, 25.i.1990, A.B. Bonaldo leg. (MCN 19344); 1♀, same locality, 13.i.1994, A.F. Franceschini leg. (MCN 24771); 1j, same locality, 25.xi.1994, L.A. Moura leg. (MCN 26116); 1♂, 2♀, same locality, 08.i.1997, E.H. Buckup leg. (MCN 28176); 2♀, 14–15.i.1997, L.A. Moura leg. (MCN 28263); 3♀, same locality, 16–17.iii.1998, L.A. Moura leg. (MCN 29238); 1♀, same locality, 05.ii.2003, R. Ott leg. (MCN 35125); 2♀, same locality, 29–30.iv.2003, R. Ott leg. (MCN 35740); 2♀, same locality, 06.i.2005, R. Ott leg. (MCN 38352); 1♀, same locality, 01.iii.2005, R. Ott leg. (MCN 39924); 1♀, same locality, 28.v. 2007, E.N.L. Rodrigues leg. (MCN 43383); 1♂, 1♀, same locality, 14.ii.2008, R. Moraes leg. (MCN 44009); 1♀, same locality, 03.iv.2008, A. Barcellos leg. (MCN 44127); 1♀, same locality, 26.ii.2010, M.C. Pairet Jr. leg. (MCN 47032); 1♀, same locality, 26.ii.2010, M.A.L. Marques leg. (MCN 47049); 3♀, Canoas, 29°55'12"S, 51°10'48"W, 13.xii.1990 (MCN 20142); 1♂, 1♀, 2j, same locality, 24.i.1991, H. Galileo & E.H. Buckup leg. (MCN 20431); 1j, same locality, 25.xii.1983, A.D. Brescovit leg. (MCN 11904); 3♀, Triunfo, 29°56'34"S, 51°43'4"W, 20.x.1977, H. Bischoff leg. (MCN 6900); 3♀, same locality, 28.xi.1977, same collector (MCN 7314); 1♀, Triunfo (Parque Estadual Delta do Jacuí), 29°57'16"S, 51°12'55"W, 23.ii.1999, A.B. Bonaldo leg. (MCN 30488); 1j, Porto Alegre, 30°01'58"S, 51°13'48"W, 04.ix.1977, A.A. Lise leg. (MCN 6469); 1♀, same locality, 17.xii.1983, A.D. Brescovit leg. (MCN 11882); 2♂, 1♀, same locality, 18.i.1992, A.D. Brescovit leg. (MCN 21958); 1♀, same locality, 2010, biology students leg. (MCTP 41329); 1j, Porto Alegre (Morro Santana), 30°02'34"S, 51°08'39"W, 22.x.1981, A.A. Lise leg. (MCN 11421); 1j, Viamão (Estação Experimental Fitotécnica Águas Belas), 30°02'51"S, 51°00'53"W, 24.i.1977, A.A. Lise leg. (MCN 5140); 1♂, same locality, 06.i.1977, same collector (MCN 5763); 1♀, Viamão (Escola Marista), 30°04'41"S, 51°03'02"W, 1994, A. Braul leg. (MCTP 4726); 3j, Porto Alegre (Ponta Grossa), 30°10'29"S, 51°11'50"W, 03.ix.1975, A.A. Lise leg. (MCN 3029); 1j, same locality, 07.v.1976, same collector (MCN 8086); 3j, Viamão (Morro do Coco), 30°16'11"S, 51°03'15"W, 04.x.1975, A.A. Lise leg. (MCN 8085); 1♀, same locality, 25.vii.1985, same collector (MCN 13378); 1j, Viamão, 30°4'51"S, 51°1'22"W, 12.i.1996, same collector (MCTP 8365); 1♀, same locality, 23.i.1996, same collector (MCTP 9294); 3j, same locality, 02.xii.1994, A.A. Lise & A. Braul leg. (MCTP 5876); 5j, same locality, 12.vii.1994, A.A. Lise leg. (MCTP 5244), 1♀, 1j, Guaíba, 30°6'50"S, 51°19'30"W, 09.i.1996, A.A. Lise leg. (MCTP 8247); 1♂, Cristal (Rio Camaquã), 31°00'12"S, 52°04'02"W, 03.ii.2008, E.N.L. Rodrigues leg. (MCN 48665).

Diagnosis

Females of S.furcillata are similar to those of S.longispina by having macrosetae above the ALE and long opisthosomal projections that are directed vertically (Fig. 2B); however, in S.furcillata the projections are rounded at the apex with a smaller terminal tubercle (Fig. 2B). They can be also distinguished by having a group of clavate setae on the median region of the prosoma (Fig. 6B), a triad of mesial macrosetae on femora I, presence of seven pairs of ventral macrosetae on tibiae I, a dark transversal line on the dorsum of opisthosoma (Fig. 6A), and by the long and coiled copulatory ducts (Fig. 6D, F). Males can be distinguished by having tubercles at the apexes of the opisthosomal projections (Fig. 3B), wide pars pendula (Fig. 7C, E), retrolateral tegular process, and the bifid basal branch of the RTA (Fig. 7D, F).

Description

Female: Prosoma dark-yellow to light-brown, covered by hyaline setae; legs of the same colour as prosoma, with some sparse darker circular taints randomly distributed; dorsal surface of coxae I and II with wide guanine spots (Fig. 6A). Opisthosoma dark-yellow with two transversal dark lines, being the posterior line disposed along the projections (Fig. 6A).
Measurements: eyes diameters and eyes interdistances: AME 0.05, ALE 0.09, PME 0.05, PLE 0.05, AME–AME 0.13, AME–ALE 0.11, PME–PME 0.15, PME–PLE 0.15, MOQ length 0.33, MOQ width 0.15; leg formula: 1–2–4–3: leg I – femur 3.36/ patella 1.40/ tibiae 3.12/ metatarsus 2.24/ tarsus 0.92/ total 11.04; II – 3.17/ 1.32/ 2.40/ 1.96/ 0.76/ 9.61; III – 1.16/ 0.68/ 0.92/ 0.60/ 0.52/ 3.88; IV – 1.36/ 0.72/ 0.84/ 0.52/ 0.48/ 3.92. Total body length 5.05; prosoma 2.04 length, 2.08 wide; opisthosoma length 3.01 (considering the projections); clypeus 0.29 height; sternum 1.03 length, 0.94 width; endites 0.47 length, 0.29 width; labium 0.27 length, 0.27 width.
Male: Prosoma dark-yellow, legs I and II predominantly light-brown with dark spots; tibiae I yellowish on the median region; legs III and IV yellowish (Fig. 7A). Opisthosoma yellowish with a pair of dorsolateral and a median posterior black spot (Fig. 7A). Embolus long, emerging from tegulum at four o’clock, with wide pars pendula and curled at the tip; RTA rounded and with central excavation (Fig. 7C–F). Measurements: eyes diameters and eyes interdistances: AME 0.03, ALE 0.07, PME 0.05, PLE 0.05, AME–AME 0.11, AME–ALE 0.09, PME–PME 0.17, PME–PLE 0.13, MOQ length 0.31, MOQ width 0.11; leg formula: 1–2–4–3: leg I – femur 3.08/ patella 1.32/ tibiae 2.88/ metatarsus 2.32/ tarsus 0.88/ total 10.48; II – 2.48/ 1.00/ 2.04/ 1.96/ 0.80/ 8.28; III – 0.76/ 0.52/ 0.76/ 0.56/ 0.48/ 3.08; IV – 1.24/ 0.44/ 0.76/ 0.48/ 0.48/ 3.40. Total body length 3.96; prosoma 1.96 length, 1.88 wide; opisthosoma length 2.00 (considering the projections); clypeus 0.29 height; sternum 0.90 length, 0.82 width; endites 0.43 length, 0.25 width; labium 0.23 length, 0.27 width.

Distribution

ARGENTINA: Missiones; BRAZIL: Bahia, São Paulo, Paraná, Santa Catarina, and Rio Grande do Sul (Fig. 16).

Taxon Treatment

• Machado, M; Guzati, C; Viecelli, R; Molina-Gómez, D; Augusto Teixeira, R; 2019: A taxonomic review of the crab spider genus Sidymella (Araneae, Thomisidae) in the Neotropics Zoosystematics and Evolution, 95(2): 319-344. doi

Images

Figure 2. Habitussen of females, lateral aSidymellalongispinabSidymellafurcillatacSidymellakolpogasterdSidymellaexcavata sp. nov. eSidymellamarmorata sp. nov. fSidymellalucida.  Figure 3. Habitussen of males, lateral aSidymellalongispinabSidymellafurcillatacSidymellakolpogasterdSidymellaexcavata sp. nov. eSidymellalucida.  Figure 6. Female of Sidymellafurcillataa habitus, dorsal b prosoma, anterior c, e epigynum, ventral d, f epigynum, dorsal.  Figure 7. Male of Sidymellafurcillataa habitus, dorsal b prosoma, anterior c, e left palp, ventral view d, f left palp, retrolateral view (white arrow indicates the basal branch of the RTA).  Figure 16. Distribution records of Sidymellafurcillata and Sidymellalucida.