Glenognatha mendezi, 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: 59-65

publication ID

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

publication LSID

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

persistent identifier

http://treatment.plazi.org/id/8E0E8F67-7D28-FFC8-ACBA-0D9DFDB6D387

treatment provided by

Plazi

scientific name

Glenognatha mendezi
status

new species

Glenognatha mendezi  new species

( Figs. 45–49View FIGURE 45View FIGURE 46View FIGURE 47View FIGURE 48View FIGURE 49, 132View FIGURE 132)

Types. Male holotype from Hacienda San Pedro , Alto Queremal, Dagua, Valle del Cauca, Colombia, 3º29´5.42´´N, 76º42´W, elev. 1800m, 21.xi.2009, J. Méndez leg., deposited in ICN 5981View MaterialsGoogleMaps  ; Paratypes: 11♂ 9♀ from the type locality, 21–26.xi.2009, J. Cabra leg., deposited in ICN 5982; 1♀ from Río Dagua , Queremal, Valle del Cauca, Colombia, [3º30´N, 76º43´W], elev. [1512m], 19.vi.1970, deposited in MCZ 92671View MaterialsGoogleMaps  ; 1♂ 1♀ from Vereda Chicoral , La Cumbre, Valle del Cauca, Colombia, 3º34´N, 76º35.6´W, elev. 1800–2100m, 31.x.2009, J. Méndez leg., deposited in IBSP 163857View MaterialsGoogleMaps  ; 3♂ 1♀ from Bosque Integral Otonga , 4.5 Km from San Francisco de las Pampas, Cotopaxi, Ecuador, 0º25´17.3´´N, 78º58´56.9´´W, elev. 1670m, 8.xii.2009, A. J. Santos leg., deposited in UFMG 8975View MaterialsGoogleMaps  .

Etymology. The species epithet is in honor of Javier Méndez Narváez, collector of the holotype, esteemed colleague and friend. The name is a noun in genitive.

Diagnosis. Males of G. mendezi  can be distinguished from all other Glenognatha  species by having the Ret1 adjacent to the fang articulation ( Fig. 46BView FIGURE 46). Females are diagnosed by having few gland ducts (two to four) in the spermathecae ( Figs. 48E –FView FIGURE 48).

Male (holotype). Habitus as in Figures 45 A –DView FIGURE 45. Carapace yellow-brownish. Sternum dusky brown with darker edges and dusky bands oriented to the median region. Abdomen oval, with irregular pattern of two lateral black bands darker at posterior region. Silver guanine spots scattered in two longitudinal bands dorsally and in lateral surfaces. Venter without guanine spots. Legs brownish tan. Total length 2.39. Cephalothorax 0.97 long, 0.78 wide, 0.67 high. Abdomen 1.40 long, 0.88 wide, 0.92 high. Sternum 0.50 long, 0.52 wide. Eye diameters and interdistances: AME 0.06. ALE 0.05. PME 0.07. PLE 0.04. AME-AME 0.05, AME-ALE 0.1, PME-PME 0.09, PME-PLE 0.09, ALE-PLE 0.01. Clypeus height 2.50. Chelicerae with the same coloration of the cephalothorax, divergent, with three promarginal and four retromarginal teeth ( Figs. 46 A –CView FIGURE 46). Ret 1 adjacent to the fang articulation ( Fig. 46BView FIGURE 46). Leg measurements: I: femur 1.80, patella 0.35, tibia 1.92, metatarsus 1.72, tarsus 0.90, total 6.70; II: 1.72, 0.35, 1.77, 1.50, 0.80, 6.15; III: 1.15, 0.25, 0.77, 0.85, 0.47, 3.50; IV: 1.47, 0.25, 1.17, 1.07, 0.50, 4.47. DTS 0.18. DTE 0.67. Epiandrous fusules as in Figure 49MView FIGURE 49. Spinnerets as in Figures 49I –LView FIGURE 49. Palp as in Figures 47E –HView FIGURE 47. Embolus tip S-shaped ( Figs. 47 A, DView FIGURE 47, 49FView FIGURE 49), with projection beyond embolic opening ( Fig. 49HView FIGURE 49).

Female (paratype ICN 5982). Coloration and general habitus as in male ( Figs. 45E –HView FIGURE 45). Sternum dusky brown with darker edges. Venter with a lighter patch between the gonopore and the openings of the book lungs. Total length 2.27. Cephalothorax 0.95 long, 0.78 wide, 0.55 high. Abdomen 1.32 long, 1.15 wide, 1.20 high. Sternum 0.50 long, 0.52 wide. Eye diameters and interdistances: AME 0.06. ALE 0.05. PME 0.07. PLE 0.04. AME-AME 0.05, AME-ALE 0.09, PME-PME 0.1, PME-PLE 0.09, ALE-PLE 0.01. Clypeus height 2.08. Chelicerae with the same coloration of the cephalothorax, with three promarginal and four retromarginal teeth ( Figs. 46D –FView FIGURE 46). Leg measurements: I: femur 1.65, patella 0.35, tibia 1.77, metatarsus 1.50, tarsus 0.80, total 6.07; II: 1.50, 0.35, 1.77, 1.50, 0.80, 5.92; III: 1.00, 0.25, 0.77, 0.97, 0.47, 3.47]; IV: 1.45, 0.22, 1.20, 1.02, 0.47, 4.37. DTS 0.16. DTE 0.39. Tracheal system as in Figures 48G –JView FIGURE 48. Uterus externus with a median projection ( Figs. 48 A, CView FIGURE 48).

Variation. Male total length 1.8-2.2 (N = 10; average 2.0), cephalothorax length 0.7-1.0 (N = 10; average 0.9), femur I length 1.3-2.0 (N = 10; average 1.6). Female total length 1.7-2.4 (N = 10; average 2.2), cephalothorax length 0.7-1.0 (N = 10; average 0.9), femur I length 1.2-1.6 (N = 10; average 1.4). Male specimens from Costa Rica and Nariño state in Colombia have short and less divergent chelicerae.

Distribution. Known from southwestern Colombia, northwestern Ecuador and Costa Rica ( Fig. 132View FIGURE 132).

Additional material examined (N = 81). COSTA RICA: Punta Arenas  / Alajuelas: Monte Verde Biological Reserve , [10º18´25.36´´N, 84º48´34.36´´W], elev. [1431m], 2.ii.1979, J. Coddington leg., 5♂ ( MCZ 125511View Materials)GoogleMaps  ; Monteverde Cloud Forest Reserve, [10º18´N, 84º48´W], elev. 1580m, vii.1978, C. L. Craig & P. Klass leg., 1♂ ( MCZ 125510View Materials). San JoséGoogleMaps  : Rio Hondura, 10º N, 84º ´W, elev. 1200m, 30.iii.1991, W. Eberhard leg., 3♂ ( MCZ 125522View Materials)  ; iii.1986, W. Eberhard leg., 1♀ ( MCZ 125475View Materials). COLOMBIA  : Nariño: Barbacoas, Altaquer, Reserva Ñambi, [1º15´N, 78º7´W], elev. 1450m, 10.iv.2010, E. Flórez y Est. Tax. Animal UN leg., 2♂ 2♀ ( ICN 4501View Materials)GoogleMaps  ; Ricaurte, R. N. La Planada , [1º34´10´´N, 77º31´12´´W], elev. 1850m, 13.i.1992, C. Valderrama leg., 1♂ ( ICN 4519View Materials)GoogleMaps  ; Ricaurte, R. N. La Planada , [1º34´10´´N, 77º31´12´´W], elev. 1850m, 23.i.1992, C. Valderrama leg., Bosque nublado, tela casi horizontal sobre hojas grandes a 130cm del suelo, diámetro tela 7cm, 2♀ ( ICN 4495View Materials)GoogleMaps  ; [Ricaurte], La Planada, 7km S. Chocones , [1º30´7.59´´N, 77º31´27.98´´W], elev. 1800m, vii.1986, W. Eberhard leg., 1♂ ( MCZ 125509View Materials)GoogleMaps  , 4♂ 4♀ 1 immature (MCZ 125508); 1♀ (MCZ 125507). Valle del Cauca: Cali, Bosque San Antonio, 3º37´N, 76º34´W, elev. 1800–2100m, ix.2009, J. Cabra leg., 1♂ ( ICN 5983View Materials)GoogleMaps  ; La Cumbre, Vereda Chicoral , 3º34´N, 76º35.6´W, elev. 1800–2100m, ix.2009, J. Mendez leg., 4♂ 4♀ 3 immature ( ICN 5984View Materials)GoogleMaps  ; 31.x.2009, J. Mendez leg., 14♂ 22♀ 4 immature (ICN 5985); ca. El Saladito , [3º29´1.29´´N, 76º36´52.32´´W], elev. 1800m, 1♂ ( MCZ 125506View Materials).GoogleMaps 

MCZ

Museum of Comparative Zoology

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