Difference between revisions of "Typhochlaena curumim"
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Revision as of 08:29, 23 October 2012
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Ordo: Araneae
Familia: Theraphosidae
Genus: Typhochlaena
Name
Typhochlaena curumim Bertani, 2012 sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnosis
The female differs by the spermatheca broad at its base, tapering to a single or bifid slender spiraled distal region (Fig. 6). Additionally, females have cephalothorax and legs dark brown or brown, and the abdomen metallic yellowish-green, dorsally with central longitudinal black stripe and a series of five black stripes on both sides, extending laterally (Fig. 26).Male unknown.
Etymology
The specific nameis derived fromthe Brazilian indigenous Tupi language, meaning “child”. It refers to the local children that found the type specimens high in a tree in Areia, State of Paraíba, Brazil, during an arachnological expedition.
Types. Holotype female, Brazil, Paraíba, Areia, Reserva Ecológica Estadual Mata do Pau-Ferro [6°58'S, 35°42'W], 500 m a.s.l., under tree bark, A.D. Brescovit, R. Bertani, A.B.Bonaldo, S.C.Dias, September 1999 (IBSP 8701); Paratype female, same data (IBSP 8354).
Additional material examined
None.
Description
Holotype female (IBSP 8701). Carapace 5.0 long, 4.8 wide, chelicerae 2.5. Legs (femur, patella, tibia, metatarsus, tarsus, total): I: 3.2, 2.4, 2.3, 1.8, 1.3, 11.0. II: 3.1, 2.2, 2.2, 1.9, 1.3, 10.7. III: 2.7, 1.9, 2.1, 2.0, 1.4, 10.1. IV: 3.6, 2.2, 2.6, 2.6, 1.6, 12.6. Palp: 2.5, 1.7, 1.7, –, 2.0, 26.9. Mid-widths (lateral): femora I –IV = 1.2, 1.1, 1.1, 1.0, palp = 0.8; patellae I–IV = 1.0, 1.2, 1.0, 0.9, palp = 0.9; tibiae I–IV = 1.1, 1.1, 1.0, 0.9, palp = 1.0; metatarsi I–IV = 1.0, 1.0, 0.8, 0.7; tarsi I–IV = 1.1, 1.0, 0.8, 0.7, palp = 0.9. Abdomen 5.3 long, 3.3 wide. Spinnerets: PMS, 0.5 long, 0.3 wide, 0.1 apart; PLS, 0.4 basal, 0.3 middle, 0.3 domed distal; mid-widths (lateral), 0.4, 0.4, 0.3, respectively. Carapace: length to width 1.04. Fovea 1.4 wide. Eyes: tubercle 0.2 high, 1.0 long, 1.5 wide. Clypeus 0.2. Anterior eye row procurved, posterior straight. Eye sizes and inter-distances: AME 0.3, ALE 0.3, PME 0.2, PLE 0.2, AME–AME 0.2, AME–ALE 0.1, AME–PME 0.1, ALE–ALE 0.9, ALE–PME 0.3, PME–PME 0.8, PME–PLE 0.1, PLE–PLE 1.0, ALE–PLE 0.3, AME–PLE 0.3. Ratio of eye group width to length 2.1. Maxillae: length to width: 1.45. Cuspules: ca. 51 spread over ventral inner heel. Labium: 0.6 long, 1.0 wide, with 122 cuspules spaced by one diameter from each other on the anterior half. Labio-sternal groove shallow, flat, sigilla not evident. Chelicerae: basal segments with six larger teeth and three very small after the 3°, 5° and 7° teeth. Sternum: 1.9 long, 2.1 wide. Legs: leg formula: IV I II III. Scopula: tarsi I–III fully scopulate, IV divided by row of 6–7 setae. Metatarsi I–II 4/5 scopulate; III 1/2, IV 1/3 distal scopulate. IV divided by a six wide row of setae. Spines absent on all legs and palps. Urticating hairs type II (0.3 mm long, 0.01 wide) on the abdomen dorsally. Genitalia: paired spermathecae with two lobes distally, a long spiraled and a straight short (Fig. 6). Color pattern: carapace and chelicerae dark brown with pale yellow long hairs on the carapace border. Legs and palps dark brown, except for brown femora. Cephalic region, legs, palps and chelicerae covered with long and abundant chestnut setae. Coxae brown. Labium, sternum and maxilla dark brown. Longitudinal stripes on femora, patellae, tibiae and metatarsi inconspicuous. Distal femora, patellae, tibiae and metatarsi rings whitish. Abdomen metallic yellowish-green, dorsally with central longitudinal black stripe and a series of five black stripes on both sides, extending laterally. Several scattered white and very long guard hairs over abdomen dorsally (Fig. 26).
Distribution
Known only from “Mata do Pau-Ferro”, Areia, in the state of Paraiba, Brazil (Fig. 28).
Natural history
Three specimens were found high in a tree, under loose bark in “Mata do Pau-Ferro” reserve, September, 1999.
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
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