Cyriocosmus
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publication ID |
https://doi.org/ 10.5281/zenodo.170714 |
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DOI |
https://doi.org/10.5281/zenodo.6265229 |
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persistent identifier |
https://treatment.plazi.org/id/03B7AB74-FFB1-4345-5F35-FA034D2BFD03 |
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treatment provided by |
Plazi |
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scientific name |
Cyriocosmus |
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Cyriocosmus View in CoL View at ENA nogueiranetoi new species
Figs 11–12 View FIGURES 11 – 20 , 28 View FIGURES 24 – 33 , 34 View FIGURES 34 – 39 , 45 View FIGURES 45 – 50 , 58 View FIGURE 58. C
Holotype female, IBSP 9193, from Rio Branco, Acre, Brazil, D. Pinz, November 1996. Paratype male, IBSP 8899, from the same locality and collector.
Etymology: The specific name is a patronym in honor of Dr. Paulo NogueiraNeto, a Brazilian researcher who plays an important role on creation and application of the environmental protection law and in nature conservation.
Diagnosis: The female differs from all other species in the genus by having the spermathecae with a sinuous neck ending in a rounded noncaliciform seminal receptacle ( Fig. View FIGURES 34 – 39
34). The male differs from that of C. fasciatus , C. sellatus , C. ritae and C. blenginii by the absence of a retrolateral field with spiniform hairs on the palpal tibia and from C. fernandoi new species by the smooth prolateral superior keel ( Figs 11, 12 View FIGURES 11 – 20 ), metatarsus I contacting the two branches of the tibial apophysis when folded, and by the origin of the paraembolic apophysis dorsally to the embolus. It can be distinguished from C. chicoi by having the cephalothorax with a blackish area covering only the cephalic region, and the abdominal color pattern having the lighter central area invaginated forwards ( Fig. 45 View FIGURES 45 – 50 ). It differs from other species by having a long paraembolic apophysis.
Female: Total length, not including chelicerae or spinnerets, 31.67. Cephalothorax length 11.67, width 10.33. Anterior eye row procurved, posterior row slightly recurved. Eye sizes and interdistances: AME 0.36, ALE 0.45, PME 0.29, PLE 0.35; AMEAME 0.24, AMEALE 0.14, PMEPME 0.93, PMEPLE 0.07, ALEPLE 0.15 AMEPME 0.13, ALEALE 1.12, PLEPLE 1.32. Eye tubercle: length 1.33, width 1.86; clypeus absent. Fovea recurved, short and shallow. Labium length 1.67, width 2.08, with 88 cuspules, maxillae with approximately 100 cuspules on the inner corner. Sternum length 5.00, width 4.33. Sigilla: second pair one diameter and a half from margin, third and fourth pair one diameter from margin, all sigilla hardly visible. Chelicerae with 9 teeth on promargin, being 3 well developed and 6 smaller. Tarsi I–IV densely scopulate, scopulae of tarsi III divided by narrow band of setae, IV widely divided. Metatarsi I densely scopulate along 4/ 5 their length, II scopulate 2/3 their length, III scopulate on distal half and IV scopulate 1/ 4 their length. Length of legs and palpal segments in Table 2 View TABLE 2 . Spination: femurs I–IV and palp 0; patellae I–IV and palp 0; tibiae I 0, II v 002 (apical), III v 002 (apical), p 001 and r 010; IV v 002 (apical), r 010 and palp v 003 (apical); metatarsi I v 1 01 (apical); II v 012 (apical); III v 12 3 (apical), p 111, r 001; IV v 9 (3 apicals), p 001, r 001. Coxae I–IV without stridulatory hairs. Spermathecae with convex base, narrowing abruptly into a sinuous neck ending in a rounded seminal receptacle. Posterior lateral spinnerets with three articles, the basal article longer than the median, which is longer than the apical; lateral median spinnerets with one article. Urticating type III hair, with short barbs, on the central dorsum of the abdomen. Cephalothorax reddish brown with cephalic region almost totally dark, legs and palpi black except for reddish brown trochanters and coxae. Dorsal abdominal pattern with five pairs of lateralradial clear stripes; the clear central region projects anteriorly ( Fig. 45 View FIGURES 45 – 50 ).
Male: Total length, not including chelicerae or spinnerets, 15.33. Cephalothorax length 9.00, width 7.33. Anterior eye row slightly procurved, posterior row slightly recurved. Eye sizes and interdistances: AME 0.32, ALE 0.35, PME 0.24, PLE 0.28; AME AME 0.13, AMEALE 0.09, PMEPME 0.61, PMEPLE 0.06, ALEPLE 0.13 AMEPME 0.12, ALEALE 0.92, PLEPLE 1.04. Eye tubercle length 1.04, width 1.4; clypeus absent. Fovea straight, short and shallow. Labium length 0.96, width 1.3, with 67 cuspules, maxillae with approximately 100 cuspules in the inner corner. Sternum length 3.3, width 2.8, with rounded, hardly visible sigilla, all pairs one diameter from margin. Chelicerae with 8 well developed teeth on promargin and a row of small teeth. Tarsi I–IV densely scopulate, tarsi III divided by a narrow band of setae, IV widely divided by setae. Metatarsi I densely scopulate on distal half, II–III scopulate less than a half and IV scopulate less than 1/3. Length of legs and palpal segments in Table 3 View TABLE 3 . Spination: femurs I–IV p 001 and palp 0; patellae IIV and palp 0; tibiae I v 11 1 (apical), p 110, II v 11 3 (apicals), p 110, III v 22 3 (apical), p 110 and r 111; IV 23 6 (3 apicals), p 111, r 111 and palp 0; metatarsi I v 001 (apical); II v 2 01 (apical), p 110; III v 22 3 (apicals), p 111, r 011; IV v 12 (2 apicals). Coxae I–IV without stridulatory hairs. Posterior lateral spinnerets with three articles, basal article longer than median, which is longer than apical; lateral median spinnerets with one article. Urticating type III hair, with short barbs, on the central dorsum of the abdomen. Cephalothorax reddish brown with cephalic region almost totally dark, femurs to tarsi dark brown and darker than coxae and trochanters. Abdomen with same pattern as female ( Fig. 45 View FIGURES 45 – 50 ).
Distribution: known only from type locality, Rio Branco, State of Acre, Brazil ( Fig. 56 View FIGURE 56 ).
TABLE 2. Cyriocosmus nogueiranetoi new species female holotype. Measurements of legs and palp.
| I | II | III | IV | Palp | |
|---|---|---|---|---|---|
| Femur | 8.5 | 7.2 | 6.7 | 8.8 | 6.0 |
| Patella | 5.1 | 4.7 | 4.0 | 4.7 | 3.7 |
| Tibia | 5.8 | 4.5 | 4.5 | 6.7 | 3.7 |
| Metatarsus | 4.5 | 4.5 | 5.3 | 7.5 | |
| IBSP |
Instituto Biologico de Sao Paulo |
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.