Glenognatha januari, Cabra-García & Brescovit, 2016

Jimmy Cabra-García & Antonio D. Brescovit, 2016, Revision and phylogenetic analysis of the orb-weaving spider genus Glenognatha Simon, 1887 (Araneae, Tetragnathidae), Zootaxa 4069 (1), pp. 1-183 : 94-96

publication ID

https://doi.org/10.11646/zootaxa.4069.1.1

publication LSID

lsid:zoobank.org:pub:52FC658C-78C7-49FC-9961-8AC43CA03101

DOI

https://doi.org/10.5281/zenodo.5666958

persistent identifier

https://treatment.plazi.org/id/8E0E8F67-7D4F-FFD7-ACBA-0DCDFC46D6B8

treatment provided by

Plazi

scientific name

Glenognatha januari
status

new species

Glenognatha januari new species

( Figs. 75–76 View FIGURE 75 View FIGURE 76 , 133 View FIGURE 133 )

Types. Male holotype from Lago Janauari , Manaus, Amazonas, Brazil, 3º20´S, 60º17´W, elev. [12m], vi.1987 GoogleMaps – vii.1988, J. Adis et al. leg., deposited in IBSP 120209; Paratypes: 1♂ same data as the holotype deposited in IBSP 120266 View Materials GoogleMaps .

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

Diagnosis. Males of G. januari resemble those of G. heleios , G. iviei , G. caaguara and G. camisea by the presence of anterior tooth ( Fig. 75G View FIGURE 75 ). They are distinguished from the latter species by the serrated distal margin of the conductor ( Figs. 76B–C View FIGURE 76 ).

Male (holotype). Habitus as in Figures 75 A –D View FIGURE 75 . Carapace pale brown, darker on sides and with a diffused dusky patch from the median eyes to the cephalic fovea. Sternum dusky brown, with darker bands towards the median region. Abdomen spherical, strongly depigmentated, dorsally with irregular greyish patches and scattered silver guanine spots. Venter with a pale black median band. Legs yellow-brownish with darker bands at the base of the segments. Total length 1.77. Cephalothorax 0.77 long, 0.60 wide, 0.50 high. Abdomen 0.92 long, 0.75 wide, 0.75 high. Sternum 0.35 long, 0.42 wide. Eye diameters and interdistances: AME 0.08. ALE 0.05. PME 0.07. PLE 0.06. AME-AME 0.05, AME-ALE 0.05, PME-PME 0.07, PME-PLE 0.08, ALE-PLE 0.01. Clypeus height 1.20. Chelicerae slightly lighter than the cephalothorax. Three promarginal and four retromarginal teeth ( Figs. 75E–G View FIGURE 75 ). Anterior tooth near the fang base ( Fig. 75G View FIGURE 75 ). Leg measurements: I: femur 0.80, patella 0.22, tibia 0.75, metatarsus 0.70, tarsus 0.45, total 2.92; II: 0.67, 0.22, 0.70, 0.61, 0.45, 2.66; III: 0.50, 0.18, 0.40, 0.42, 0.28, 1.80; IV: 0.75, 0.17, 0.60, 0.55, 0.30, 2.37. DTS 0.10. DTE 0.34. Palp as in Figures 76E–H View FIGURE 76 . Embolus short, almost completely enclosed by the conductor ( Figs. 76 A, E–H View FIGURE 76 ).

Female. Unknown.

Variation. Male total length 1.65–1.77 (N = 4; average 1.72), cephalothorax length 0.62–0.75 (N = 4; average 0.72), femur I length 0.8–0.85 (N = 4; average 0.81).

Distribution. Known only from the type locality in the state of Amazonas, Brazil ( Fig. 133 View FIGURE 133 ).

Material examined (N = 2). BRAZIL: Amazonas: Manaus, Lago Janauari, 3º20´S, 60º17´W, elev. [12m], vi.1987 GoogleMaps – vii.1988, J. Adis et al. leg., 1 ♂ ( IBSP 120166) ; 1 ♂ (IBSP 120220).

DTE

Centro de Investigaciones Cient�ficas y Transferencia de Tecnolog�a a la Producci�n (CICyTTP-CONICET)

IBSP

Instituto Biologico de Sao Paulo

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Tetragnathidae

Genus

Glenognatha