Masteria colombiensis Raven, 1981

Passanha, Victor & Brescovit, Antonio D., 2018, On the Neotropical spider Subfamily Masteriinae (Araneae, Dipluridae), Zootaxa 4463 (1), pp. 1-73: 24-25

publication ID

http://doi.org/ 10.5281/zenodo.1441911

publication LSID

lsid:zoobank.org:pub:20E7F0F5-7592-47CE-B67F-36DE0124E76F

persistent identifier

http://treatment.plazi.org/id/03D95431-A227-8E7B-FF36-4911FBD57D85

treatment provided by

Plazi

scientific name

Masteria colombiensis Raven, 1981
status

 

Masteria colombiensis Raven, 1981 

( Figs 13View FIGURE 13, 29EView FIGURE 29, 33View FIGURE 33)

Masteria colombiensis Raven, 1981: 61  , figs 13–18, 20, 22.

Types. COLOMBIA. ♂ holotype  , ♀ paratype, Sierra Nevada de Santa Marta (11°14’10”N; 74°12’6”W), San Pedro, Magdalena, 29.III.1975. J. A. Kochalka leg., deposited in AMNH, examined).GoogleMaps 

Diagnosis. Males of M. colombiensis  resemble those of M. downeyi  , M. lewisi  , M. yacambu  n. sp., M. amarumayu  n. sp., M. mutum  n. sp. and M. aguaruna  n. sp. in the piriform bulb, and differ in the coiled distal area of the embolus ( Fig. 13B –CView FIGURE 13). The female genitalia are similar to those of M. amarumayu  n. sp., M. mutum  n. sp. and M. aguaruna  n. sp. in the bilobed spermathecae, with the conical ectal lobe. The female differs from those of other species in the short duct on the ental spermathecal lobe ( Fig. 13D –EView FIGURE 13).

Description. Male (Holotype). Color: Carapace and legs orange and abdomen light brown. Total length 3.88. Carapace 1.80 long, 1.40 wide. Abdomen 2.08 long. Fovea 0.12. Clypeus 0.04. Ocular tubercle 0.22 long, 0.60 wide. Eyes: eight, posterior row strongly recurved ( Fig. 13AView FIGURE 13). AME 0.02, ALE 0.19, PME 0.06, PLE 0.09. Basal segment of chelicerae with nine retrolateral teeth, with 15–20 smaller mesobasal teeth. Labium 0.14 long, 0.34 wide. Sternum 0.48 wide, 1.05 long. Palp: femur 1.00/ patella 0.62/ tibia 0.88/ tarsus 0.48/ total 2.98; Legs I: femur 1.46/ patella 0.94/ tibia 1.34/ metatarsus 1.16/ tarsus 0.96/ total 5.86; II: 1.20/ 0.68/ 0.90/ 0.86/ 0.68/ total 4.32; III: 1.04/ 0.64/ 0.84/ 1.06/ 0.66/ 4.24; IV: 1.56/ 0.80/ 1.48/ 1.52/ 0.90/ 6.26; Leg formula 4123; Spination: see Raven (1981). Tibia I: P1 a conical and strong spur, P2 with a strong spine with slightly projected base below P1 and P3, and P3 two spines sharing the same projected base. Metatarsus I with flattened basal spine and basal depression associated with prolateral processes of tibia I ( Figs 13FView FIGURE 13, 29EView FIGURE 29). Palpal tibia twice length of cymbium, with row of elongated ventral and dorsal setae. Cymbium as long as wide with four apical spines and one on prolateral lobe. Bulb piriform with elongated tegulum, short embolus, half length of tegulum and apically tapering ( Fig. 13B –CView FIGURE 13). PLS: basal, medial and apical, 0.72 0.62, 0.62 long.

Female (Paratype). Color: Carapace in dorsal and ventral views and legs yellowish brown, abdomen light brown. Total length 6.06. Carapace 2.76 long, 2.06 wide. Abdomen 3.30 long. Fovea 0.20. Clypeus 0.03. Ocular tubercle 0.29 long, 0.37 wide. Eyes: eight, posterior row strongly recurved. AME 0.02, ALE 0.20, PME 0.08, PLE 0.14. Basal segment of chelicerae with 11 prolateral teeth and 10 smaller mesobasal teeth. Labium 0.28 long, 0.52 wide. Sternum 1.20 wide, 1.50 long. Palp: femur 1.52/ patella 0.89/ tibia 1.37/ tarsus 1.21/ total 4.99; Legs I: femur 2.22/ patella 1.27/ tibia 1.94/ metatarsus 1.75/ tarsus 1.21/ total 8.39; II: 2.00/ 1.02/ 1.37/ 1.40/ 1.02/ 6.81; III: 1.90/ 0.86/ 1.33/ 1.52/ 0.98/ 6.59; IV: 2.35/ 1.40/ 1.94/ 2.03/ 1.17/ 8.89. Leg formula 4123. Spination: see Raven (1981). Palpal claw with 17 teeth. Spermathecae, the ectal lobe conical, high, with large and interspaced glands, and small glandular area. Ental lobe short, globose, with short duct connected to ectal lobe ( Fig. 13D –EView FIGURE 13). PLS: basal, medial and apical, 0.98, 0.79, 0.83 long.

Distribution. Colombia, Magdalena, Sierra Nevada de Santa Marta ( Fig. 33View FIGURE 33).

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Dipluridae

Genus

Masteria

Loc

Masteria colombiensis Raven, 1981

Passanha, Victor & Brescovit, Antonio D. 2018
2018
Loc

Masteria colombiensis

Raven, 1981 : 61