Striamea gertschi Raven, 1981

Passanha, Victor & Brescovit, Antonio D., 2018, On the Neotropical spider Subfamily Masteriinae (Araneae, Dipluridae), Zootaxa 4463 (1), pp. 1-73: 57-61

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-A208-8E5F-FF36-4BABFDBD7AD1

treatment provided by

Plazi

scientific name

Striamea gertschi Raven, 1981
status

 

Striamea gertschi Raven, 1981 

( Figs 37View FIGURE 37, 39View FIGURE 39)

Striamea gertschi Raven, 1981: 57  , figs 1–7, 12, 19, 21, 23.

Types. Colombia. ♂ holotype  , ♀ paratype, Sierra Nevada de Santa Marta (11°14’10”N; 74°12’6”W), San Pedro, Magdalena, 04-16.V.1975, J. A. Kochalka leg. deposited in AMNH, examined.GoogleMaps 

Diagnosis. Females of Striamea gertschi  differs from those of Striamea magna  in being two to three times smaller in size and in having elongated spermathecae ( Fig. 37F –GView FIGURE 37).

Redescription. Male (Holotype). Color: Chelicerae light brown, carapace in dorsal view with 6–7 brown radial markings, interleaved with radial light brown markings, abdomen in dorsal view with 5–6 pairs of ovoid markings, spinnerets light brown, brown legs, carapace and abdomen in ventral view brown ( Fig. 34BView FIGURE 34). Total length 3.30. Carapace 1.70 long, 1.44 wide. Abdomen 1.60 long. Fovea 0.15. Clypeus 0.03. Ocular tubercle 0.29 long, 0.35 wide. Eyes: 8, anterior row straight, posterior recurved ( Fig. 34BView FIGURE 34). AME 0.03, ALE 0.14, PME 0.09, PLE 0.14. Basal segment of chelicerae with 10 prolateral teeth and 10 smaller mesobasal teeth. Labium 0.15 long, 0.31 wide. Sternum 0.88 wide, 1.05 long. Palp: femur 0.88/ patella 0.50/ tibia 0.90/ tarsus 0.40/ total 2.68; Legs I: femur 1.56/ patella 0.90/ tibia 1.40/ metatarsus 1.40/ tarsus 0.94/ total 6.20; II: 1.32/ 0.70/ 0.90/ 1.10/ 0.74/ total 4.76; III: 1.26/ 0.60/ 0.94/ 1.10/ 0.72/ 4.62; IV: 1.68/ 0.80/ 1.50/ 1.74/ 0.94/ 6.66; Leg formula 4123; Spination: see Raven (1981). Metatarsus I with apical ventral megaspine ( Fig. 37DView FIGURE 37). Metatarsus I with 12–14 grouped microspines retrolaterally ( Fig. 37EView FIGURE 37). Palpal tibia 2.5 times length of cymbium, with basal depression, five strong and robust subdistal spines and curved and elongated distal spine ( Fig. 37CView FIGURE 37). Cymbium with short prolateral lobe and three apical spines. Palpal bulb piriform with short tegulum, flattened and curved embolus, largest than length of tegulum, with conical tip ( Fig. 37A –BView FIGURE 37). PLS: basal, medial and apical, 0.44 0.30 0.50 long.

Female (Paratype). Coloration as in male. Total length 3.74. Carapace 1.90 long, 1.52 wide. Abdomen 1.84 long. Fovea 0.07. Clypeus 0.14. Ocular tubercle 0.25 long, 0.38 wide. Eyes: eight, posterior row recurved ( Fig. 34BView FIGURE 34). AME 0.04, ALE 0.15, PME 0.10, PLE 0.14. Basal segment of chelicerae with 10 prolateral teeth and 10–12 smaller mesobasal teeth. Labium 0.22 long, 0.44 wide. Sternum 0.96 wide, 1.20 long. Palp: femur 0.96/ patella 0.60/ tibia 0.80/ tarsus 0.80/ total 3.16; Legs I: femur 1.62 / patella 0.96/ tibia 1.36/ metatarsus 1.22/ tarsus 0.96/ total 6.12; II: 1.20/ 0.70/ 0.86/ 0.90/ 0.64/ 4.30; III: 0.84/ 0.70/ 0.84/ 1.00/ 0.64/ 4.02; IV: 1.60/ 0.80/ 1.40/ 1.40/ 0.74/ 5.94; Leg formula 1423. Spination: see Raven (1981). Palpal claw with 14 teeth. Spermathecae unilobed, with elevated glandular region at base, sinuous, and elongate ducts ( Fig. 37F –GView FIGURE 37). PLS: basal, medial and apical, 0.64, 0.42, 0.60 long.

Distribution. Colombia ( Fig. 39View FIGURE 39).

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Dipluridae

Genus

Striamea

Loc

Striamea gertschi Raven, 1981

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

Striamea gertschi

Raven, 1981 : 57