Guyruita tepequem, Santos & Almeida & Morais & Bertani, 2025
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publication ID |
https://doi.org/10.11646/zootaxa.5660.2.5 |
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publication LSID |
lsid:zoobank.org:pub:C2D4B480-CBD4-4A37-A6D6-04ED4B704E6D |
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DOI |
https://doi.org/10.5281/zenodo.16602943 |
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persistent identifier |
https://treatment.plazi.org/id/03D6CA5A-FFFB-FF82-FF38-8132FA809982 |
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treatment provided by |
Plazi |
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scientific name |
Guyruita tepequem |
| status |
sp. nov. |
Guyruita tepequem sp. nov.
( Figs 1 View FIGURE 1 , 2 View FIGURE 2 )
Diagnosis. Males of G. tepequem sp. nov. resemble those of G. cerrado by the medially long embolus being ca. 2.5 times longer than the tegulum ( Fig. 2G–I View FIGURE 2 ). They differ from males of G. cerrado and those of all other Guyruita species by the embolus tip having a distal torsion as well as the dorsal abdominal pattern dark with conspicuous lateral clear spots and a single large ovoid clear spot on the dorsum center ( Fig. 1D View FIGURE 1 ). Females are unknown.
Etymology. The specific name is a noun in apposition taken from the type locality, Serra do Tepequem, in the State of Roraima, Brazil.
Type material. Holotype male from Brazil, State of Roraima, Amajari, Serra do Tepequem , SESC [3°4459’N, 61°4400’W], 14–29.XII. 2015, Boldrini and Rafael col., INPA-ARA 9117 .
Description. Holotype male. Carapace: 3.48 long, 3.01 wide. Chelicera: 1.23 long. Legs: Formula: IV–I–II-III. Legs (femur, patella, tibia, metatarsus, tarsus, total): I: 3.65, 1.95, 3.16, 2.49, 1.82, 13.07; II: 3.09, 1.51, 2.48, 2.36, 1.54, 10.98; III: 2.48, 1.27, 1.77, 2.48, 1.35, 9.35; IV: 3.51, 1.47, 3.69, 3.34, 1.64, 13.65. Palp: 1.98, 1.11, 1.76, -, 0.48, 5.33. Mid-widths: femora I–IV= 1.68, 1.60, 2.15, 1.64, palp= 1.09; patellae I–IV= 1.42, 1.32, 1.43, 1.46, palp= 1.00; tibiae I–IV= 1.42, 1.06, 1.20, 1.03, palp= 1.16; metatarsi I–IV= 0.82, 0.72, 0.73, 0.84; tarsi I–IV= 0.76, 0.70, 0.60, 0.55, palp= 1.00. Abdomen: 3.56 long, 2.03 wide. Spinnerets: PMS 0.45 long, 0.16 wide, 0.10 apart. Basal, middle, and apical segments of PLS, 0.70 long, 0.31 wide; 0.53 long, 0.27 wide; 0.66 long, 0.18 wide, respectively ( Fig. 1E View FIGURE 1 ). Carapace: 1.15 times longer than wide; cephalic region not raised, thoracic striae inconspicuous. Fovea: Straight, deep, 0.40 wide ( Fig. 1A View FIGURE 1 ). Clypeus 0.36. Eyes: tubercle 0.36 high, 0.51 long, 0.62 wide. Anterior row slightly procurved. Posterior row straight. Eye size and interdistances: AME 0.19, ALE 0.15, PME 0.12, PLE 0.10; AME–AME 0.045, AME–ALE 0.032, ALE–ALE 0.51, PME–PLE 0.017, PME–PME 0.39, ALE–PLE 0.032, PLE–PLE 0.52 ( Fig. 1C View FIGURE 1 ). Maxilla: 1.07 longer than wide. Cuspules: ca. 156/134 over ventral inner heel. Labium: 0.50 long, 0.58 wide, with ca. 157 cuspules on anterior half, spaced by one diameter of each other. Labio-sternal groove large, shallow, flattened. Sigilla not evident. Chelicerae: Basal segment with 5 teeth and 5 small teeth on promargin. Sternum: 1.65 long, 1.59 wide. Sigilla: three pairs, anterior and median rounded, one diameter from margin; posterior fusiform, less than one diameter from margin ( Fig. 1B View FIGURE 1 ). Clavate trichobothria: 4 on tarsus I; 7 on tarsus II; 9 on tarsus III; 13 on tarsus IV; 12 on palpal tarsus. Scopula: Tarsi of legs I–IV fully scopulated; III, less dense; divided by a band of bristles in III. Metatarsus I fully scopulated; II–IV 1/2 apical; with band of interspersed bristles in II, divided by band of bristles in III. IRC absent. Spines: leg I: fe 0, pa 0, ti p2-0-v7, me v2, ta 0; leg II: fe d1-0-v1, pa 0, ti p2-0-v5, me p2-0-v4, ta 0; leg III: fe 0, pa p1, ti p1-r2-v5, me d3-p3 v4-1-3ap, ta 0; leg IV: fe d1, pa 0, ti r2-v3-3ap, me d2-p3-r1-v4, ta 0; palp: fe d1, pa 0, ti d1-p1, ta 0. Palp ( Fig. 2G–I View FIGURE 2 ): bulb pyriform with embolus tapering. Embolus long, straight, not flattened, with distal torsion, 2.49 long in retrolateral view, ca. 2.5 times tegulum length. Thin distal width, tapering distally; basal, middle and distal width 0.58, 0.17, 0.06, respectively. Tegulum: 0.58 long, 0.64 high in retrolateral view. Cymbium triangular with subequal lobes, lacking well developed process on retrolateral lobe. Tibial apophysis ( Fig. 2A–C View FIGURE 2 ): two slightly curved processes on prolateral leg I, with weakly developed bases, slightly ventro-retrolaterally positioned. R process with subterminal spine ca. ½ its length, prolateral and retrolateral processes closely positioned. Prolateral process longer, with spine one third shorter than process on retrolateral face. Metatarsus I straight when folded touches outer side of retrolateral process. Metatarsi and tarsi I, II discolored.
Color pattern: Chelicerae dark brown, carapace and legs dark brown. Carapace, chelicerae and legs covered with fine plumose whitish setae ( Fig. 1A View FIGURE 1 ). Abdomen dorsal pattern symmetrical, with 6 dark stripes extending on both sides, with two bands connected to other points at apical end of midline. An ovoid, large, pale spot on abdomen dorsum. Ventrally mostly pale, with darker spots ( Fig. 1D View FIGURE 1 ).
Natural history: The specimen was hand collected at night in humid tropical forest soil.
Distribution. Known only from the type locality, Tepequem, in the State of Roraima, Brazil ( Fig. 7 View FIGURE 7 ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.