Glenognatha camisea, 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 : 97-100

Glenognatha camisea new species

( Figs. 77–79 , 133 )

Types. Male holotype from Río Camisea , La Convención, Cusco, Peru, 11º47´9.8´´S, 72º42´5.3´´W, elev. 474m, iii–iv.1997, S. Córdoba leg., deposited in MUSM 0505885 ; Paratypes: 1♂, same data as the holotype, deposited in MUSM 0504913 ; 1♂ from Río Camisea , Cashiari, La Convención, Cusco, Peru, 11º51´51.3´´S, 72º46´45.6´´W, elev. 579m, v–vi.1997, S. Córdoba leg., deposited in MUSM 0 504905.

Etymology. The species epithet is a noun in apposition taken from the type locality. Diagnosis. Males of G. camisea can be distinguished from all other Glenognatha species by slender distal portion of the paracymbium ( Figs. 78H , 79C ).

Male (holotype). Habitus as in Figures 77 A –D . Carapace pale brown, darker on sides and along furrows, with a median lighter patch. Sternum brown, with darker bands towards the median region. Abdomen oval, dorsally with two dusky longitudinal bands on sides and one median posterior band that divides into two lateral bands that join medially in the posterior region. Silver guanine spots scattered in lighter dorsal regions and on lateral surfaces. Venter with a pale black median band and two lighter lateral bands. Legs yellow-brownish with distal parts of segments darker. Total length 1.62. Cephalothorax 0.80 long, 0.62 wide, 0.45 high. Abdomen 0.97 long, 0.80 wide, 0.82 high. Sternum 0.40 long, 0.45 wide. Eye diameters and interdistances: AME 0.08. ALE 0.07. PME 0.07. PLE 0.06. AME-AME 0.06, AME-ALE 0.04, PME-PME 0.04, PME-PLE 0.05, ALE-PLE 0.01. Clypeus height 1.17. Chelicerae with the same coloration of the cephalothorax. Three promarginal and four retromarginal teeth ( Figs. 77E–G ). Anterior tooth well-developed ( Fig. 77E, G ). Leg measurements: I: femur 1.02, patella 0.25, tibia 1.75, metatarsus 0.80, tarsus 0.57, total 3.72; II: 0.90, 0.25, 0.90, 0.81, 0.52, 3.38; III: 0.62, 0.20, 0.45, 0.52, 0.35, 2.15; IV: 0.85, 0.20, 0.71, 0.67, 0.42, 2.86. Metatarsus IV with one trichobothrium. DTS 0.10. DTE 0.36. Epiandrous fusules as in Figure 79D . Palp as in Figures 78E–H . Paracymbium distal portion slender ( Figs. 78H , 79C ).

Female. Unknown.

Variation. Male total length 1.62–1.75 (N = 6; average 1.66), cephalothorax length 0.75–0.85 (N = 6; average 0.79), femur I length 0.97–1.25 (N = 6; average 1.08).

Distribution. Known from Cusco state in Peru ( Fig. 133 ).

Material examined (N = 3). PERU: Cusco: La Convención, Río Camisea , 11º47´9.8´´S, 72º42´5.3´´W, elev. 474m, S. Córdoba leg., 1♂ ( MUSM 0504917 ) ;

La Convención, Echarate, C. N. Timpia, 12º6´S, 72º49´W, elev. 730m, 25–31.i.2010, E. Razúri & C. Espinoza leg., 1♂ (MUSM 0500942); La Convención, 12º19´21.26´´S, 73º2´44.08´´W, elev. 792m, 23.iv.2007, W. Paredes leg., 1♂ (MUSM 0504903).

Figures

FIGURE 77. Glenognatha camisea new species from Peru. A – D, male habitus (Paratype, MUSM 054913). A, dorsal. B, lateral. C, ventral. D, frontal. E – G, male left chelicerae (Paratype, MUSM 0504905). E, anterior. F, posterior. G, mesal. Scale bars, 200 µm (A – D) 100 µm (E – G). AT: anterior tooth. Prt: promarginal tooth. Ret: retromarginal tooth.

FIGURE 78. Glenognatha camisea new species from Peru. A – D, male left palp, schematic (Paratype, MUSM 054913). A, ventral. B, conductor, ventral. C, conductor, dorsal. D, embolus, ventral. E – H, male left palp (Holotype, MUSM 0505885). E, ventral. F, dorsal. G, prolateral. H, retrolateral. Scale bars, 100 µm. C: conductor. CB: cymbium. CRa: conductor retrolateral apophysis. E: embolus. EMg: embolic medial groove. P: paracymbium. T: tegulum. TO: tarsal organ.

FIGURE 79. Glenognatha camisea new species from Peru. A – C, male left palp. A, ventral. B, dorsal. C, anterior. D, epiandrous fusules (images by Ligia Benavides). Scale bars 100 µm (A – C) 10 µm (D). C: conductor. CB: cymbium. CRa: conductor retrolateral apophysis. E: embolus. EMg: embolic medial groove. P: paracymbium. T: tegulum. TO: tarsal organ.

FIGURE 133. Distribution of G. caparu new species, G. camisea new species, G. januari new species and G. caaguara new species.