Cyriocosmus
Creators: name: Fukushima, Caroline Sayuri
name: Bertani, Rogério
name: Jr, Pedro Ismael Da Silva
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Theraphosidae
Cyriocosmus

description: Cyriocosmus nogueira­netoi new species
Figs 11–12, 28, 34, 45, 58
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.
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), 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). 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. 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).
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. 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).
Distribution: known only from type locality, Rio Branco, State of Acre, Brazil (Fig. 56).
description: Published as part of Fukushima, Caroline Sayuri, Bertani, Rogério & Jr, Pedro Ismael Da Silva, 2005, Revision of Cyriocosmus Simon, 1903, with notes on the genus Hapalopus Ausserer, 1875 (Araneae: Theraphosidae), pp. 1-31 in Zootaxa 846 on pages 14-17, DOI: 10.5281/zenodo.170714