Glenognatha heleios Hormiga, 1990

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 : 120-121

Glenognatha heleios Hormiga, 1990

( Figs. 93–97 , 134)

Glenognatha heleios Hormiga, in Hormiga & Döbel, 1990: 197 , figs. 1–14 (male holotype from Tuckerton, Ocean Co., New Jersey, United States of America, 1.xi.1984, H. Döbel leg., deposited in USNM, examined; Paratypes from the same locality, 6♀ 6♂, 9.x.1984, 3♀ 4♂, 7.xi.1984, H. Döbel leg., deposited in USNM; 1♀ 1♂, 9.x.1984, H. Döbel leg., deposited in AMNH; 1♀ 1♂, 9.x.1984 H. Döbel leg., deposited in MCZ, all examined); Hormiga et al. 1995: 326, figs. 7H–I; Cabra-García et al. 2014: 1029, figs. 1K, 4D, 6 A, 8B; World Spider Catalog 2015.

Diagnosis. Males of G. heleios can be easily distinguished from all other Glenognatha species (except G. iviei ) by the presence of a small pointed basal apophysis on the paracymbium ( Figs. 95F , 97H ); distinguished from G. iviei by the slightly curved Prt 1 ( Fig. 94 A ) and by the uncoiled embolus distal portion ( Figs. 95D , 97E–G ). Females resemble those of G. foxi and G. hirsutissima by having a basal constriction on the spermathecae ( Figs. 96D–E ); distinguished from the former by the absence of CFO ( Figs. 94D–F ) and from the latter by the absence of macrosetae on the ventral surface of femur III.

Description. Male and female described by Hormiga & Döbel (1990). Additional data. Habitus as in Figure 93 . Femur III and IV without trichobothria. Male and female with three promarginal and four retromarginal teeth ( Fig. 94 ). Male chelicerae with anterior tooth and CFO ( Fig. 94 A –C ). Palp as in Figures 95E–H . Conductor retrolateral apophysis rounded ( Figs. 95B–C ). Embolus curved prolaterally ( Figs. 97 A, E ). Female tracheal system as in Figures 96F–H . Spermathecae with a basal constriction ( Figs. 96D–E ). UE entire ( Fig. 96 A –C ).

Variation. See Hormiga & Döbel (1990).

Distribution. Known in New Jersey state in United States of America ( Fig. 134).

Additional material examined (N = 18). UNITED STATES OF AMERICA: New Jersey: Ocean Co., Tuckerton, [39º36´N, 74º20´W], elev. [1m], 7.xi.1984, H. Döbel leg., 4♂ 7♀ ( USNM) ; 28.vii.1984, H. Döbel leg., 3♂ ( USNM) ; 25.ix.1984, H. Döbel leg., 2♂ ( USNM) .

New records. UNITED STATES OF AMERICA: New Jersey: Oceanville , [39º28´N, 74º27´W], elev. [12m], 26.ix.1949, P. F. Springer leg., 1♀ 1♂ ( AMNH).

Figures

FIGURE 93. Glenognatha heleios from USA. A – D, male habitus (AMNH). A, dorsal. B, lateral. C, ventral. D, frontal. E – H, female habitus (Paratype, AMNH). E, dorsal. F, lateral. G, ventral. H, frontal. Scale bars, 200 µm. TS: tracheal spiracle.

FIGURE 94. Glenognatha heleios from USA (AMNH). A – C, male left chelicerae. A, anterior. B, posterior. C, mesal. D – F, female left chelicerae. D, anterior. E, posterior. F, mesal. Scale bars, 100 µm. AT: anterior tooth. CFO: cheliceral fang outgrowth. Prt: promarginal tooth. Ret: retromarginal tooth.

FIGURE 95. Glenognatha heleios from USA (Paratype, 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 (arrow, paracymbium basal apophysis). G, prolateral. H, retrolateral. Scale bars, 100 µm. C: conductor. CB: cymbium. CRa: conductor retrolateral apophysis. E: embolus. ED: ejaculatory duct. EMg: embolic medial groove. P: paracymbium. T: tegulum. TO: tarsal organ.

FIGURE 96. Glenognatha heleios. A – C, female genitalia. A, dorsal. B, ventral. C, lateral. D – E, spermathecae and copulatory duct. F – H, female tracheal system. F, dorsal. G, median and lateral trunks. H, tracheal spiracle, posterior view. Scale bars, 1 0 0 µm (F), 20 µm (A – C), 10 µm (D – E, G – H). CD: copulatory duct. LSD: long-stem ducts. LT: lateral trunk. MC: membranous chamber. MT: median trunk. S: spermathecae. TAG: tracheal atrium gland. UE: uterus externus.

FIGURE 97. Glenognatha heleios. A – D, male left palp. A, ventral. B, dorsal. C, retrolateral. D, anterior. E – G, embolus and conductor. E, ventral. F, dorsal. G, retrolateral. H, paracymbium (arrow, paracymbium basal apophysis). Scale bars, 100 µm (A – D, H), 20 µm (E – G). C: conductor. CB: cymbium. CRa: conductor retrolateral apophysis. E: embolus. EMg: embolic medial groove. P: paracymbium. T: tegulum.