Glenognatha iviei Levi, 1980

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 : 121

Glenognatha iviei Levi, 1980

( Figs. 98–99 , 134)

Glenognatha iviei Levi, 1980: 69 , figs. 285–289 (male holotype from Gulfport, Mississippi, United States of America, 18.viii.1922, W. Ivie leg., deposited in AMNH, examined); World Spider Catalog 2015.

Diagnosis. Males of G. iviei can be differentiated from all other Glenognatha species (except G. heleios ) by the presence of a small pointed basal apophysis on the paracymbium ( Fig. 99H ); distinguished from G. heleios by the strongly curved Prt1 ( Fig. 98D ) and by the coiled embolus ( Fig. 99D ).

Description. male described by Levi (1980). Additional data.

Male (holotype). Habitus as in Figure 98 . Cephalothorax 0.42 high. Abdomen 0.78 long, 0.48 wide, 0.58 high. Sternum 0.38 long, 0.32 wide. Eye diameters and interdistances: AME 0.07, ALE 0.04, PME 0.08, PLE 0.04. AME-AME 0.07, AME-ALE 0.03, PME-PME 0.05, PME-PLE 0.06, ALE-PLE 0.005. Clypeus height 1.80. Three promarginal and four retromarginal teeth. Anterior tooth present ( Fig. 98D ). Leg measurements: I: femur 0.75, patella 0.25, tibia 0.77, metatarsus 0.62, tarsus 0.37, total 2.77; II: 0.67, 0.22, 0.65, 0.52, 0.32, 2.40; III: 0.42, 0.17, 0.33, 0.33, 0.22, 1.50; IV: 0.58, 0.17, 0.47, 0.45, 0.25, 1.93. Femur III and IV without trichobothria. DTS 0.03. DTE 0.22. Palp as in Figures 99E–H . Conductor retrolateral apophysis rounded. Embolus coiled ( Fig. 99D ).

Female. Unknown

Distribution. Known only from the type locality ( Fig. 134).

Figures

FIGURE 98. Glenognatha iviei from USA (Holotype, AMNH). Male habitus. A, dorsal. B, lateral. C, ventral. D, frontal. Scale bars, 200 µm. AT: anterior tooth. Prt: promarginal tooth.

FIGURE 99. Glenognatha iviei from USA (Holotype, AMNH). A – D, male left palp, schematic. A, ventral. B, conductor, ventral. C, conductor, dorsal. D, embolus, ventral. E – H, male left palp. E, ventral. F, dorsal. G, prolateral. H, retrolateral (arrow, paracymbium basal apophysis). Scale bars, 100 µm. C: conductor. CB: cymbium. CRa: conductor retrolateral apophysis. E: embolus. EMg: embolic medial groove. P: paracymbium. T: tegulum.