Chrysometa santosi, Nogueira, André A., Pena-Barbosa, João P. P., Venticinque, Eduardo M. & Brescovit, Antonio D., 2011

Nogueira, André A., Pena-Barbosa, João P. P., Venticinque, Eduardo M. & Brescovit, Antonio D., 2011, The spider genus Chrysometa (Araneae, Tetragnathidae) from the Pico da Neblina and Serra do Tapirapecó mountains (Amazonas, Brazil): new species, new records, diversity and distribution along two altitudinal gradients, Zootaxa 2772, pp. 33-51 : 43

Chrysometa santosi new species

Figures 6G–I

Type material. Holotype: Female from Pico da Neblina (2,000 m), São Gabriel da Cachoeira, (00°46'N 66º00'W), Amazonas, Brazil, X.2007, A. A. Nogueira et al. coll. (INPA-AR 6158).

Etymology. The species epithet is a patronym in honor of Adalberto J. Santos, for his contributions to arachnology and to the academic development of the first two authors.

Diagnosis. Females of Chrysometa santosi differ from other species of the genus by the depression of the copulatory opening longer than wide, on ventral view ( Fig. 6G ). Lateral plates covering half of the basal region of the median plate, on posterior view ( Fig. 6H ); median plate racket-shaped in posterior view ( Fig. 6H ), and copulatory ducts opening on the top of the genitalia, while the fertilization ducts opens on the basal region ( Fig. 6I ). Females of C. santosi are similar to C. banos Levi, 1986 , figs.: 170–174.

Description. Male. Unknown.

Female (holotype). Carapace yellow, with cephalic region brown; sternum, chelicerae, labium and endites brown. Legs yellow, with brown rings. Dorsum of abdomen grey, with some white spots and some black transversal lines. Venter grey. Spinnerets yellow. Total length 7.4; Carapace 2.8 long, 2.1 wide. Leg I length: femur 4.4; patella + tibia 5.5; metatarsus 4.7; tarsus 1.5. Patella+tibia II 3.6; III 1.2; IV 2. 3. Epigynum: Lateral copulatory ducts enlarged averagely ( Fig. 6H ).

Distribution. Only known from the type locality.

Figures

FIGURES 6 A – I. Chrysometa spp. A – C. Chrysometa lomanhungae n. sp. A. Epigynum, ventral view. B. Same, posterior view. C. Same, dorsal view. D – F. Chrysometa yanomami n. sp. D. Epigynum, ventral view. E. Same, posterior view. F. Same, dorsal view. G – I. Chrysometa santosi n. sp. G. Epigynum, ventral view. H. Same, posterior view. I. Same, dorsal view. Scale bars: A – C, 0. 1 mm; D – F, 0. 1 mm; G – I, 0. 3 mm.