Sidymella longispina

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Taxonavigation

Ordo: Araneae
Familia: Thomisidae
Genus: Sidymella

Name

Sidymella longispina (Mello-Leitão, 1943) – Wikispecies link – Pensoft Profile

• Sidyma longispina Mello-Leitão, 1943: 208, fig. 35 (♀); Lise 1973: 10, figs 19–-23 (♀).

Type material

Holotype ♀, BRAZIL: Rio Grande do Sul, B. Rambo leg. (MNRJ 41911, examined; lost in the fire of the Museu Nacional do Rio de Janeiro). Neotype female, BRAZIL: Rio Grande do Sul, São Francisco de Paula, 29°24'52"S, 50°15'24"W, A.A. Lise et al., 24–26.iv.2006 (MCTP 35899, designated here).

Other material examined

BRAZIL: 1♂, Minas Gerais, Vale Verde (Parque Nacional do Caparaó), 20°25'05"S, 41°50'48"W, 24–30.xi.2014, B.T. Faleiro leg. (UFMG 18264). 1♂, 1j, Paraná, Foz do Iguaçu (Refúgio Biológico de Bela Vista), 25°26'56"S, 54°33'23"W, 09–11.xi.1991, A.B. Bonaldo leg. (MCN 21809). 1♀, Santa Catarina, Rancho Queimado, 27°40'22"S, 49°01'19"W, 08–12.x.1994, A.B. Bonaldo & L.A. Moura leg. (MCTP 5952). 3j, Rio Grande do Sul, Tenente Portela, 27°22'15"S, 53°45'28"W, 17.i.1985, A.A. Lise leg. (MCN 13068); 2j, Iraí, 27°11'38"S, 53°15'03"W, 18.xi.1975, A.A. Lise leg. (MCN 3142); 10j, same locality, 21.xi.1975, same collector (MCN 8082); 1j, Derrubadas (Parque Estadual do Turvo), 27°13'57"S, 53°51'04"W, 04–06.ii.1980, A.A. Lise leg. (MCN 8984); 3♀, same locality, 04–07.v.2004, R. Ott leg. (MCN 38864); 1♀, same locality, 19–22.x.2004. R. Ott leg. (MCN 38878); 1f, Caxias do Sul (Vila Oliva), 29°12'56"S, 50°53'22"W, 14.ix.1976, H. Bischoff leg. (MCN 4485); 1♂, 10.iv.1992, L.A. Moura leg. (MCN 22124); 1j, Canela, 29°21'57"S, 50°48'57"W, 24.viii.1975, A.A. Lise leg. (MCN 3026); 2♀, São Francisco de Paula, 29°27'00"S, 50°34'59"W, 14.v.1993, A. Braul leg. (MCTP 3213); 3j, same locality, 05.i.1985, A.A. Lise leg. (MCN 13107); 1♀, Maquiné, 29°40'47"S, 50°11'20"W, 22.vi.2008, E.N.L. Rodrigues leg. (MCN 54202); 1♀, Santa Maria, 29°40'59"S, 53°48'00"W, 18.i.1999, C.B. Kotzian & L. Indrusiak leg. (MCTP 40101); 1♂, 1♀, same locality, 30.ix.1992, biology students leg. (MCTP 41330); 1♀, Gravataí (Mato Alto), 29°57'20"S, 50°57'46"W, 13.iii.1985, A.D. Brescovit leg. (MCN 13094); 2♀, Cachoeira do Sul, 30°0'0"S, 53°0'0"W, B. Rambo leg. (MNRJ 41911); 1♀, Pantano Grande, 30°11'27"S, 52°22'26"W, 05.iv.2008, G. Deprá leg. (MCTP 40084); 1♀, Guaíba, 30°6'50"S, 51°19'30"W, 28.iv.1995, A. Braul leg. (MCTP 7542); 1♀, Cristal (Rio Camaquã), 31°00'12"S, 52°04'02"W, 19.xii.2007, E.N.L. Rodrigues leg. (MCN 48618); 1♂, same locality, 14.ii.2008, same collector (MCN 48832); 1♀, same locality, 21.iv.2008, same collector (MCN 49031); 1j, São Borja, 28°10'16.10"S, 55°26'49.78"W, 06.xii.1975, A.A. Lise leg. (MCN 8088). ARGENTINA: 1♀, Misiones, Puerto Iguazu (Parque Nacional Iguazú), 25°41'01"S, 54°27'14"W, 22–30.viii.1986, M. Ramírez leg. (MACN-Ar 19069); 2j, same locality, 19–20.i.2005, C. Grismado et al. leg. (MACN-Ar 27637); 1♀, same locality, vi.1985, M. Ramírez leg. (MACN-Ar 19067); 1j, Iguazu, 25°50'53.71"S, 54°20'48.17"W, x.1954, Schiapelli de Carlo leg. (MACN-Ar 19070); 1j, Montecarlo, 26°33'58"S, 54°45'25"W, i.1966, same collector (MACN-Ar 19072); 3♂, 2j, Santa Maria, 27°53'39"S, 55°21'20"W, 1952, C. Viana leg. (MCTP 3537).

Diagnosis

Females of S.longispina are similar to those of S.furcillata by their long and vertically oriented opisthosomal projections (Figs 2A, 10A), and the presence of stout macrosetae above the ALE (Fig. 10B); however, their opisthosomal projections have pointy conical apexes instead of being rounded with a small apical protuberance as in S.furcillata. The females of S.longispina also have shorter copulatory ducts (Fig. 10D, F). Males of S.longispina resemble those of S.furcillata but their palpi bear a truncated RTA with a conical and well-developed basal branch (larger than the RTA itself) (Fig. 11D, F); the male palp has a long, acute tegular process and a dorso-basal projection (Fig. 11D, F). Both males and females have just one mesial macroseta on femora I (Fig. 11A).

Description

Female: Prosoma yellowish-orange, darker on the cephalic area and presenting a pair of needle-shaped macrosetae on conical projections above the ALE (Fig. 10B). Legs yellowish-orange; femora I with a single prolateral macrosetae; both the anterior tibiae and metatarsi (I and II) ventrally armed with five pairs of ventral macrosetae. Opisthosoma light-yellow with posterior projections long, pointed and vertically oriented (Figs 2A, 10A).
Measurements: eyes diameters and eyes interdistances: AME 0.05, ALE 0.09, PME 0.05, PLE 0.05, AME–AME 0.15, AME–ALE 0.11, PME–PME 0.15, PME–PLE 0.17, MOQ length 0.35, MOQ width 0.15; leg formula: 1–2–4–3: leg I – femur 4.45/ patella 1.60/ tibiae 4.20/ metatarsus 3.05/ tarsus 0.85/ total 14.15; II – 3.35/ 1.30/ 2.95/ 1.95/ 0.75/ 10.30; III – 1.25/ 0.65/ 1.05/ 0.55/ 0.55/ 4.05; IV – 1.60/ 0.70/ 0.95/ 0.55/ 0.45/ 4.25. Total body length 7.93; prosoma 2.56 length, 2.12 wide; opisthosoma length 5.37 (considering the projections); clypeus 0.23 height; sternum 1.11 length, 1.00 width; endites 0.60 length, 0.27 width; labium 0.31 length, 0.37 width.
Male: Body colouration pattern and other characteristics as in female (Fig. 11A, B). Measurements: eyes diameters and eyes interdistances: AME 0.03, ALE 0.05, PME 0.03, PLE 0.03, AME–AME 0.09, AME–ALE 0.05, PME–PME 0.11, PME–PLE 0.11, MOQ length 0.21, MOQ width 0.13; leg formula: 1–2–4–3: leg I – femur 2.44/ patella 1.12/ tibiae 3.12/ metatarsus 2.28/ tarsus 0.92/ total 9.88; II – 2.08/ 0.76/ 1.64/ 1.48/ 0.72/ 6.68; III – 0.60/ 0.48/ 0.60/ 0.40/ 0.40/ 2.48; IV – 1.04/ 0.44/ 0.60/ 0.40/ 0.40/ 2.88. Total body length 3.04; prosoma 1.40 length, 1.72 wide; opisthosoma length 1.64 (considering the projections); clypeus 0.17 height; sternum 0.76 length, 0.66 width; endites 0.33 length, 0.17 width; labium 0.17 length, 0.25 width.

Distribution

BRAZIL: Minas Gerais, Paraná, Santa Catarina, and Rio Grande do Sul; ARGENTINA: Misiones (Fig. 17).

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 10. Female of Sidymellalongispinaa habitus, dorsal b prosoma, anterior c, e epigynum, ventral d, f epigynum, dorsal.  Figure 11. Male of Sidymellalongispinaa habitus, dorsal b prosoma, anterior c, e left palp, ventral view d, f left palp, retrolateral view (white arrow indicates the tegular process).  Figure 17. Distribution records of Sidymellakolpogaster and Sidymellalongispina.