Glenognatha florezi, 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 : 26-31

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.5666928

persistent identifier

https://treatment.plazi.org/id/8E0E8F67-7D0B-FF96-ACBA-0E93FC93D364

treatment provided by

Plazi

scientific name

Glenognatha florezi
status

new species

Glenognatha florezi new species

( Figs. 14–18 View FIGURE 14 View FIGURE 15 View FIGURE 16 View FIGURE 17 View FIGURE 18 , 130 View FIGURE 130 )

Types. Male holotype from Laguna La Herrera , Mosquera, Cundinamarca, Colombia, [4º42´31.1´´N, 74º18´54.2´´W], elev. 2600m, 9.ii.2002, J. Martinez, C. Niño, A. Castañeda, G. Mora leg., deposited in ICN 5976 View Materials GoogleMaps ; Paratypes: 24 ♂ 14 ♀ same data as the holotype, deposited in ICN 5977 View Materials GoogleMaps ; 4♂ 4♀ same data as the holotype, deposited in IBSP 163855 View Materials GoogleMaps .

Etymology. The species epithet is in honor of Dr. Eduardo Flórez Daza (Universidad Nacional de Colombia) for his enormous contributions to Colombian arachnology. The name is a noun in genitive.

Diagnosis. Males of G. florezi resemble those of G. lacteovittata by the distal prolaterally oriented fold of the conductor lamina ( Figs. 16B View FIGURE 16 , 18 A View FIGURE 18 ). They are distinguished from the latter by the absence of filiform projections in the distal portion of the embolus ( Figs. 16D View FIGURE 16 , 18 A –E View FIGURE 18 ). Females resemble those of G. lacteovittata and G. boraceia by the median projection of the uterus externus ( Figs. 17 A –E View FIGURE 17 ); distinguished from the former by the presence of one posterior cheliceral bulge ( Fig. 15F View FIGURE 15 ) and from the latter by the position of the posterior bulge, which is located at the level of Ret3 and Ret4 as seen in mesal view ( Fig. 15F View FIGURE 15 ).

Male (holotype). Habitus as in Figures 14 A –D View FIGURE 14 . Carapace pale brown, darker along sides and median region. Sternum dusky brown. Abdomen oval, dorsally with irregular pattern of two longitudinal black bands that join medially forming thin transverse bands in the posterior region. Silver guanine spots scattered in dorsal and lateral surfaces. Venter with a dusky median band that ramifies towards the lateral surface into thin irregular bands. Legs light yellow-brownish with distal parts of segments darker. Tracheal spiracle well-sclerotized. Total length 3.90. Cephalothorax 1.62 long, 1.27 wide, 1.07 high. Abdomen 2.35 long, 1.87 wide, 1.75 high. Sternum 0.72 long, 0.82 wide. Eye diameters and interdistances: AME 0.11. ALE 0.09. PME 0.11. PLE 0.08. AME-AME 0.08, AME-ALE 0.07, PME-PME 0.10, PME-PLE 0.14, ALE-PLE 0.01. Clypeus height 2.40. Chelicerae with the same coloration of the cephalothorax. Three promarginal and four retromarginal teeth. ( Figs. 15 A –C View FIGURE 15 ). CFO well-developed ( Fig. 15 A View FIGURE 15 ). Leg measurements: I: femur 1.72, patella 0.52, tibia 1.67, metatarsus 1.22, tarsus, total 0.72; II: 1.67, 0.52, 1.60, 1.22, 0.72, 5.75; III: 1.15, 0.40, 0.97, 0.65, 0.52, 3.70; IV: 1.50, 0.45, 1.57, 1.20, 0.70, 5.42. Metatarsus IV with one trichobothrium. DTS 0.27. DTE 0.95. AG-FL triplet absent. Epiandrous fusules as in Figure 18H View FIGURE 18 . Palp as in Figures 16E–H View FIGURE 16 . Paracymbium with short distal portion ( Figs. 16H View FIGURE 16 , 18D View FIGURE 18 ). Conductor lamina with a distal prolaterally oriented fold ( Figs. 16B View FIGURE 16 , 18 A View FIGURE 18 ). Embolus with tooth-like projections ( Fig. 16D View FIGURE 16 ). Medial groove limited to the inner surface ( Fig. 18B View FIGURE 18 ).

Female (paratype ICN 5977). Coloration and general habitus as in male ( Figs. 14E–H View FIGURE 14 ). Abdomen with three longitudinal black bands, one median bifurcated at the anterior region and two laterals. Total length 3.85. Cephalothorax 1.60 long, 1.30 wide, 0.80 high. Abdomen 2.65 long, 2.00 wide, 1.75 high. Sternum 0.80 long, 0.82 wide. Eye diameters and interdistances: AME 0.10. ALE 0.08. PME 0.11. PLE 0.08. AME-AME 0.1, AME-ALE 0.07, PME-PME 0.12, PME-PLE 0.11, ALE-PLE 0.01. Clypeus height 2.20. Chelicerae with the same coloration of the cephalothorax. Three promarginal and four retromarginal teeth ( Figs. 15D–F View FIGURE 15 ). Basal segment of the chelicerae with a distinct posterior bulge ( Figs. 15F View FIGURE 15 ). Leg measurements: femur 1.45, patella 0.55, tibia 1.25, metatarsus 1.07, tarsus 0.57, total 4.90; II: 1.47, 0.50, 1.15, 1.07, 0.65, 4.85; III: 1.07, 0.42, 0.87, 0.60, 0.50, 3.47; IV: 1.50, 0.30, 1.37, 1.07, 0.45, 4.70. Metatarsus IV with one trichobothrium. DTS 0.52. DTE 0.87. Spinnerets as in Figures 17F–H View FIGURE 17 . PMS with four ( Fig. 17G View FIGURE 17 ) to five AC spigots. AG-FL triplet absent ( Fig. 17H View FIGURE 17 ). Tracheal system as in Figure 18E View FIGURE 18 . Genitalia without spermathecae ( Figs. 17 A –E View FIGURE 17 ). UE with a median projection ( Figs. 17D–E View FIGURE 17 ).

Variation. Male total length 3.2–4.1 (N = 10; average 3.6), cephalothorax length 1.5–1.7 (N = 10; average 1.6), femur I length 1.5–1.8 (N = 10; average 1.7). Female total length 3.5–4.2 (N = 10; average 3.8), cephalothorax length 1.5–1.7 (N = 10; average 1.6), femur I length 1.2–1.7 (N = 10; average 1.4).

Distribution. Known only from Cundinamarca and Boyacá states in Colombian central Andes ( Fig. 130 View FIGURE 130 ).

Additional material examined (N = 178). COLOMBIA: Boyacá: Paipa , Laguna de Sochagota, [5º46´1.1´´N, 73º7´36.78´´W], elev. 2500m, 8.vii.2000, V. Rodríguez & E. Flórez leg., 1♂ ( ICN 5102 View Materials ) GoogleMaps . Cundinamarca: Mosquera, La Herrera , [4º42´31.1´´N, 74º18´54.2´´W], elev. 2600m, 9.ii.2002, J. Martinez, C. Niño GoogleMaps , A. Castañeda , G. Mora leg., 43♂ 18♀ 53 immature ( ICN 2 View Materials 136) ; 43♂ 4♀ 8 immature (ICN 1973); 2♂ 2♀ (IBSP 163856); Mosquera, Corpoica, [4º45´N, 74º20´W], elev. 2600m, v–vi.1997, L. Benavides leg., 2♂ (ICN 4451); Bogotá, Universidad Nacional, Arboretum [4º38´33.77´´N, 74º4´55.09´´W], elev. 2600m, 21.ii.2009, F. Bagon leg., 1♀ ( ICN 5100 View Materials ) GoogleMaps ; Bogotá, Universidad Nacional, Instituto de Ciencias Naturales [4º38´N, 74º4´W], elev. 2600m, 9.ix.1992, C. Martinez & A. Ordoñez leg., 1♂ ( ICN 6433 View Materials ). GoogleMaps

DTE

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

ICN

Instituto de Ciencias Naturales, Museo de Historia Natural

PMS

Prirodonamen Muzej Skopje

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Tetragnathidae

Genus

Glenognatha