Stemmops carauari,

Santanna, Manoela & Rodrigues, Everton Nei Lopes, 2018, Five new species and new records of the spider genus Stemmops (Araneae, Theridiidae, Spintharinae) from Brazil, Zootaxa 4524 (2), pp. 174-186: 177-178

publication ID

https://doi.org/10.11646/zootaxa.4524.2.2

publication LSID

lsid:zoobank.org:pub:F904B4DB-8F5B-46ED-9973-3A1D53BCFC6E

persistent identifier

http://treatment.plazi.org/id/03AD0F3C-D80B-FF89-FF37-607DEC09E0A7

treatment provided by

Plazi

scientific name

Stemmops carauari
status

new species

Stemmops carauari  new species

Fig. 4View FIGURES 1–4, 12View FIGURES 10–23, 25View FIGURE 25

Type material. Holotype, BRAZIL: Amazonas, Carauari, Porto Urucu, Base de Operações Geológicas Pedro de Moura , 4°52’16”S– 65°20’4”W, IX.2006, N. F. Lo Man Hung leg., pitfall-trap, 1M ( MCN 44857View Materials); Minas Gerais, Matozinhos, Mocambeiro, 19°30’55”S– 44°06’40”W, 16–26.X.2012, Equipe Carste leg., 1M ( IBSP 189580View Materials); Rio de Janeiro, Pinheiral, Fazenda Santa Helena, 22°34’S– 44°21’W, 05–11.XI.1999, E. Folly leg., 1M ( IBSP 215207View Materials).GoogleMaps 

Etymology. The species name is a noun in apposition taken from the type locality.

Diagnosis. The male of Stemmops carauari  new species resembles that of S. bicolor O. Pickard-Cambridge, 1894  (see Levi 1955, figs. 17, 18) by the embolus not coiled, and by the shape of embolus base and theridiid tegular apophysis ( Fig. 4View FIGURES 1–4), but differ by the embolus short with trajectory of the embolus that loops far from the tegulum edge ( Fig. 4View FIGURES 1–4), in S. bicolor  embolus long, partly covering cymbium margin in ventral view, and by the shape of the apex of conductor ( Fig. 4View FIGURES 1–4), wider in S. bicolor  (see Levi 1955, fig. 18).

Description. Male holotype (from Base de Operações Geológicas Pedro de Moura, MCN 44857View Materials): Total length 1.55. Carapace: length 0.69, width 0.71. Clypeus height: 0.12. Sternum: length 0.44, width 0.42. Chelicerae: length 0.21, width 0.06. Abdomen: length: 0.84, width 0.75, height 0.73. Leg formula I/IV/II/III. Segment length (I/II/III/ IV): femora 1.05/0.75/0.73/1.05; patellae+tibiae 1.28/0.73/0.67/1.05; metatarsi+tarsi 1.13/0.98/0.92/1.32; total: 3.69/2.47/2.33/3.42. Palp: femora 0.21, patellae 0.08, tibiae 0.10, cymbium 0.35. All eyes of the same size. AME separated from each other by 0.06, PME by 0.02, PME-PLE 0.02. Carapace yellow with brown dots ( Fig. 12View FIGURES 10–23), darkened in median portion after PME. Clypeus concave, laterally. Chelicerae yellow. Labium subtriangular, yellow. Endites yellow. Ocular region dark except between PME. Sternum brown, with dark dots. Legs pale yellow. Abdomen oval ( Fig. 12View FIGURES 10–23), dark grey with a pale yellow spot above spinnerets, venter grey.

Female. Unknown.

Variation. (n= 3) Total length: 1.55–2.05; carapace: length 0.69–0.88; width: 0.71–0.73, Femur leg I length: 1.05–1.36.

Distribuition. Brazil (Amazonas, Rio de Janeiro and Minas Gerais, Fig. 25View FIGURE 25)  .

MCN

McNeese State University

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Theridiidae

Genus

Stemmops