Iridopelma vanini

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Bertani R (2012) Revision, cladistic analysis and biogeography of Typhochlaena C. L. Koch, 1850, Pachistopelma Pocock, 1901 and Iridopelma Pocock, 1901 (Araneae, Theraphosidae, Aviculariinae). ZooKeys 230 : 1–94, doi. Versioned wiki page: 2012-10-23, version 27971, https://species-id.net/w/index.php?title=Iridopelma_vanini&oldid=27971 , contributors (alphabetical order): Pensoft Publishers.

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BibTeX:

@article{Bertani2012ZooKeys230,
author = {Bertani, Rogério},
journal = {ZooKeys},
publisher = {Pensoft Publishers},
title = {Revision, cladistic analysis and biogeography of Typhochlaena C. L. Koch, 1850, Pachistopelma Pocock, 1901 and Iridopelma Pocock, 1901 (Araneae, Theraphosidae, Aviculariinae)},
year = {2012},
volume = {230},
issue = {},
pages = {1--94},
doi = {10.3897/zookeys.230.3500},
url = {http://www.pensoft.net/journals/zookeys/article/3500/abstract},
note = {Versioned wiki page: 2012-10-23, version 27971, https://species-id.net/w/index.php?title=Iridopelma_vanini&oldid=27971 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - Revision, cladistic analysis and biogeography of Typhochlaena C. L. Koch, 1850, Pachistopelma Pocock, 1901 and Iridopelma Pocock, 1901 (Araneae, Theraphosidae, Aviculariinae)
A1 - Bertani R
Y1 - 2012
JF - ZooKeys
JA -
VL - 230
IS -
UR - http://dx.doi.org/10.3897/zookeys.230.3500
SP - 1
EP - 94
PB - Pensoft Publishers
M1 - Versioned wiki page: 2012-10-23, version 27971, https://species-id.net/w/index.php?title=Iridopelma_vanini&oldid=27971 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/zookeys.230.3500

Wikipedia/ Citizendium:

<ref name="Bertani2012ZooKeys230">{{Citation
| author = Bertani R
| title = Revision, cladistic analysis and biogeography of Typhochlaena C. L. Koch, 1850, Pachistopelma Pocock, 1901 and Iridopelma Pocock, 1901 (Araneae, Theraphosidae, Aviculariinae)
| journal = ZooKeys
| year = 2012
| volume = 230
| issue =
| pages = 1--94
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/zookeys.230.3500
| url = http://www.pensoft.net/journals/zookeys/article/3500/abstract
| pmc =
| accessdate = 2019-08-19

}} Versioned wiki page: 2012-10-23, version 27971, https://species-id.net/w/index.php?title=Iridopelma_vanini&oldid=27971 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Araneae
Familia: Theraphosidae
Genus: Iridopelma

Name

Iridopelma vanini Bertani, 2012 sp. n.Wikispecies linkZooBank linkPensoft Profile

Diagnosis

Males resemble those of Iridopelma zorodes and Iridopelma katiae sp. n. by leg I and IV having similar length (leg IV/I length = 0.98, SD = 0.02). It differs from Iridopelma zorodes and Iridopelma katiae sp. n. by longer embolus (Figs 127–129). Additionally, it differs from Iridopelma katiae sp. n. by a general brown pattern. Female resembles those of Iridopelma marcoi sp. n. by longer spermathecae folded twice (Fig. 132), and differs by having type II urticating setae on abdomen dorsum.

Etymology

The specific name is a patronym in honour of Professor Sérgio Antonio Vanin, a Brazilian entomologist. As advisor of some arachnologists, myself included, he contributed to the development of modern Brazilian arachnology.

Types

Holotype female (IBSP Ref. 74.595), Brazil, state of Piauí, Parnaíba [2°53'S, 41°41'W], 5 m a.s.l., R. Bertani, November 1994; Paratype male (IBSP 11328), Brazil, state of Maranhão, Barreirinhas, Parque Nacional dos Lençóis Maranhenses [2°41'S, 42°55'W), 32 m a.s.l., Equipe Biota, 12–18 October 2001.

Additional material examined

BRAZIL: Pará: Rio Tocantins, margem direita, Chiqueirão [4°20'S, 49°25'W], B. M. Mascarenhas, 1 April 1984 (MPEG-ARA 005080); Maranhão: Barreirinhas, Parque Nacional dos Lençóis Maranhenses [2°41'S, 42°55'W), 32 m a.s.l., Equipe Biota, 12–18 October 2001, 1 male (IBSP 11346), 1 female (IBSP 11343), 1 female (IBSP 11330), 1 female, 1 immature (IBSP 11345), 1 female, 2 immatures (IBSP 11342); Piauí: Castelo do Piauí, E. C. B. Rochas Ornamentais (5°13'50.8"S, 41°42'01.1"W), F. M. Oliveira-Neto, 27 October 2005, 1 male (MPEG-ARA 002297); José de Freitas, Nazareth Eco Resort [4°46'S, 42°34'W], S. Brasil, 3 males (IBSP 11349); Tocantins: Colinas de Tocantins [8°03'S, 48°28'W], W. R. Soares, 10 December 1968, 1 female (IBSP 3918).

Description

Holotype female (IBSP Ref. 74.595). Carapace 21.3 long, 20.0 wide, chelicerae 11.0. Legs (femur, patella, tibia, metatarsus, tarsus, total): I: 17.4, 9.8, 13.1, 11.9, 6.5, 58.7. II: 15.9, 9.1, 11.9, 11.2, 5.9, 54.0. III: 14.0, 8.5, 10.6, 10.7, 5.8, 49.6. IV: 16.5, 9.1, 13.5, 13.9, 5.9, 58.9. Palp: 12.0, 7.0, 8.0, –, 8.1, 35.1. Mid-widths (lateral): femora I–IV = 4.2, 4.2, 4.5, 4.2, palp = 3.3; patellae I–IV = 4.0, 4.3, 3.9, 3.8, palp = 3.4; tibiae I–IV = 3.5, 3.3, 3.1, 3.5, palp=3.0; metatarsi I–IV = 2.6, 2.7, 2.4, 2.4; tarsi I–IV = 2.9, 2.9, 2.9, 2.9, palp = 3.0. Abdomen 22.1 long, 16.9 wide. Spinnerets: PMS, 2.2 long, 1.3 wide, 0.5 apart; PLS, 3.7 basal, 2.5 middle, 3.8 distal; mid-widths (lateral), 2.1, 1.9, 1.4, respectively. Carapace: length to width 1.06. Fovea: deep, 4.4 wide. Eyes: tubercle 1.0 high, 2.5 long, 3.5 wide. Clypeus 1.4. Anterior eye row procurved, posterior slightly recurved. Eye sizes and inter-distances: AME 0.6, ALE 0.7, PME 0.4, PLE 0.7, AME–AME 1.0, AME–ALE 0.5, AME–PME 0.4, ALE–ALE 2.4, ALE–PME 0.9, PME–PME 2.1, PME–PLE 0.2, PLE–PLE 2.7, ALE–PLE 0.5, AME–PLE 0.7. Ratio of eye group width to length 2.1. Maxillae: length to width: 2.2. Cuspules: 100–150 spread over ventral inner heel. Labium: 2.5 long, 3.0 wide, with ca. 100 cuspules spaced by one diameter from each other on the anterior third. Labio-sternal groove deep, narrow, sigilla not evident. Chelicerae: basal segments with ten teeth decreasing in size from distal to basal portion. Sternum: 9.9 long, 7.5 wide. Legs: leg formula: I=IV II III. Scopula: tarsi I–IV fully scopulate. Metatarsi I–II 4/5 scopulate; III 2/3, IV 1/3 distal scopulate. IV divided by five wide row of setae. Urticating hairs type II (0.65 to 0.70 long, 0.02 wide) on abdomen dorsum. Genitalia: paired long and converging spermathecae tapering strongly from base to apex, double folded and with strong constriction forming two (more rarely one or three) distal lobes (Fig. 132). Color pattern: carapace, chelicerae and dorsum of legs and palps covered with short setae having green/blue iridescence and with abundant longer light brown setae giving a brownish appearance. Tarsi dorsally with a “U” orange stripe. Femora ventrally of the same color as the dorsum; patellae, tibiae, metatarsi and tarsi ventrally blackish. Coxae, labium, sternum and maxillae black. Longitudinal stripes on dorsum of femora, patellae, tibiae and metatarsi whitish, conspicuous. Distal femora, patellae, tibiae and metatarsi with white rings. Abdomen dorsum and lateral light-brown with long setae of same color. Central dorsal area blackish, forming a pattern, with long setae having basal part blackish, distal light brown. Urticating hairs reddish. Abdomen ventrally black (Fig. 133).

Description

Paratype male (IBSP 11328). Carapace 17.7 long, 17.4 wide, chelicerae 9.6. Legs (femur, patella, tibia, metatarsus, tarsus, total): I: 17.5, 9.1, 13.9, 13.6, 7.3, 61.4. II: 16.4, 8.3, 13.0, 12.7, 6.5, 56.9. III: 14.0, 7.0, 11.0, 11.6, 5.8, 49.4. IV: 16.7, 7.7, 14.4, 14.9, 6.3, 60.0. Palp: 9.9, 5.8, 7.7, –, 3.6, 27.0. Mid-widths (lateral): femora I–IV = 3.7, 3.6, 3.7, 3.4, palp = 2.5; patellae I–IV = 3.6, 3.5, 3.5, 3.3, palp = 2.6; tibiae I–IV = 3.0, 2.9, 2.9, 2.7, palp = 2.4; metatarsi I–IV = 2.2, 2.1, 1.9, 1.8; tarsi I–IV = 2.4, 2.5, 2.1, 2.3, palp = 2.4. Abdomen 19.3 long, 13.1 wide. Spinnerets: PMS, 1.7 long, 0.8 wide, 0.3 apart; PLS, 2.9 basal, 2.3 middle, 2.9 distal; mid-widths (lateral), 1.3, 1.1, 0.8, respectively. Carapace: length to width 1.01. Fovea 2.1 wide. Eyes: tubercle 0.9 high, 1.9 long, 3.0 wide. Clypeus 1.0. Anterior eye row procurved, posterior slightly recurved. Eye sizes and inter-distances: AME 0.6, ALE 0.7, PME 0.5, PLE 0.7, AME–AME 0.7, AME–ALE 0.5, AME–PME 0.3, ALE–ALE 1.9, ALE–PME 0.6, PME–PME 1.8, PME–PLE 0.3, PLE–PLE 2.3, ALE–PLE 0.2, AME–PLE 0.6. Ratio of eye group width to length 2.0. Other characters as in female, except: maxillae: length to width: 2.3. Cuspules: 150–200 spread over ventral inner heel. Labium: 2.3 long, 2.9 wide, with 150–200 cuspules spaced by one diameter from each other on the anterior third center. Labio-sternal groove shallow, flat, sigilla not evident. Sternum: 8.2 long, 6.8 wide. Legs: leg formula: I=IV II III. Tibial spurs. Legs: I, single, 0.8 long, 2.2 wide (Fig. 130); II, single, 0.5 long, 2.1 wide (Fig. 131); both with numerous spiniform setae on their tips. Urticating hairs type II (1.13 long, 0.02 wide) on the abdomen dorsum. Palp: embolus 4.9 long, with a 135° curvature to the retrolateral side. Embolus basal, middle and distal width of 0.9, 0.3 and 0.04, respectively. Tegulum 1.5 long, 2.3 wide. (Figs 127–129). Cymbium: spiniform process 1.0 long, 0.7 wide on apex. Color pattern and setation mostly as in female. Dorsal abdominal pattern not as conspicuous as in female.

Distribution

Brazil, states of Piaui, Maranhão and possibly Tocantins and Pará (Fig. 169). There is a single record for both Tocantins (Colinas de Tocantins) and Pará (Tocantins River). These specimens are smaller than those from Maranhão and Piauí, and the specimen from Pará has both male palpal bulb emboli broken, therefore its identification is only tentative.

Spermathecae variation

Typical spermatheca is long, converging, tapers strongly from base to apex, double folded and with a strong constriction forming two distal lobes (Figs 132, 151). In some specimens the apical region ends in a single lobe, that can be partially divided (Fig. 150) or in two lobes with one partially or completely divided, in this case resulting in multilobular spermathecae (Fig. 152).

Natural history

Little is known of this species. The holotype female was collected with an eggsac in November, under a fallen tree trunk in a moderately anthropized area in Parnaíba, state of Piaui. Other specimens were collected in Barreirinhas, State of Maranhão. Both localities are on coastal region characterized by huge sandy dunes and sparse vegetation. Other localities, as Jose de Freitas (Carvalho and Avelino 2010[1]) and Castelo do Piaui, both in state of Piaui, as well as Colinas do Tocantins, state of Tocantins, are chiefly covered by cerrado, a savannah-like vegetation.

Color pattern ontogeny

No data available.

Original Description

  • Bertani, R; 2012: Revision, cladistic analysis and biogeography of Typhochlaena C. L. Koch, 1850, Pachistopelma Pocock, 1901 and Iridopelma Pocock, 1901 (Araneae, Theraphosidae, Aviculariinae) ZooKeys, 230: 1-94. doi

Other References

  1. Carvalho L, Avelino M (2010) Composição e diversidade da fauna de aranhas (Arachnida, Araneae) da Fazenda Nazareth, Município de José de Freitas, Piauí, Brazil. Biota Neotropica 10(3). http://www.biotaneotropica.org.br/v10n3/en/abstract?article+bn00510032010 [accessed 07 June 2012] doi: 10.1590/S1676-06032010000300001

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