Chrysometa candianii, 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 : 43-44

Chrysometa candianii new species

Figures 7A, B

Type material. Holotype: Male from Pico da Neblina (860 m), São Gabriel da Cachoeira, (0°46'N 66º00'W), Amazonas, Brazil, X.2007, A.A. Nogueira et al. coll. (INPA-AR 6138).

Paratype: two males from the same locality and date (INPA-AR 6139 (1 male); IBSP 160464 (1 male )).

Etymology. The species epithet is a patronym in honor of the arachnologist David Candiani, in gratitude for his help in the field through the Pico da Neblina expedition.

Diagnosis. Males of Chrysometa candianii differs from all other species of the genus by the lower prong of paracymbium with three projections, on retrolateral views ( Fig. 7B ), with the distance between the tips longer than the size of the tips ( Fig. 7B ); and by a basal projection of the ecto-median cymbial apophysis, like a lobe of an ear ( Fig. 7B ). Males of C. candianii are similar to C. guttata (Keyserling) Levi, 1986 , figs.: 559, 560.

Description. Male (holotype). Carapace, sternum, chelicerae, labium, endites and legs yellow. Dorsum of abdomen grey, with white spots. Venter grey. Spinnerets grey. Total length 3.8; Carapace 2.0 long, 1.6 wide. Leg I length: femur 3.4; patella+tibia 3.9; metatarsus 3.4; tarsus 1.1. Patella + tibia II 3.0; III 1.2; IV 2. 0. Palp: tegulum with a prolateral projection ( Fig. 7A ), upper prong of paracymbium with a retrolateral depression ( Fig. 7A ), and lower prong trifid, median tip longer than others ( Fig. 7B ). Cymbial membranous projection ventrally directed ( Figs. 7A, B ). ecto-basal cymbial apophysis curved and pointed ventrally ( Figs. 7A, B ).

Female. Unknown.

Distribution. Only known from the type locality.

Figures

FIGURES 7 A – D. Chrysometa spp. AB. Chrysometa candianii n. sp. A. Male palp, ventral view. B. Same, retrolateral view. CD. Chrysometa minuta (Keyserling). C. Male palp, ventral view. D. Same, retrolateral view. Scale bars: AB, 0.5 mm; CD, 0. 5 mm.