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Sahastata wunderlichi

Sahastata wunderlichi

Morocco, Egypt, Sudan, Chad
Status
Extinct

IUCN conservation assessment category

Habitat
Desert

Primary ecological niche & biome

Diet
Omnivorous

Dietary type and primary food source

Activity
Diurnal

Diurnal, nocturnal, or active patterns

Scientific Summary

GBIF Taxonomic Backbone & Wikipedia Registry Profile

Description. Male (Paratype, MACN-Ar 39465). Coloration pale yellowish cream, except where noted. Carapace with dark pigment around eyes and faint light brown median V-shaped pattern. Carapace with thick black setae interspersed with regular setae. Sternum with white markings posteriorly. Abdomen light yellowish brown. Total length 4.94. Carapace 2.44 long, 1.96 wide. Clypeus 0.3 long. Eye sizes and interdistances: AME 0.13, PME 0.14, ALE 0.198, PLE 0.18, AME-AME 0.06, PME-PME 0.156. Sternum length 1.19, width 1.06. Palp: femur length 3.64, height 0.37, tibia length 3.23, height 0.33. Leg I: fe 5.12, pa 1.12, ti 5.08, mt 5.9, ta 2.28. II: fe 4.1, pa 0.95, ti 3.77, mt 4.37, ta 1.81. III: fe 3.8, pa 0.75, ti 3.27, mt 4.3, ta 1.55. IV: fe 4.99, pa 1.07, ti 4.79, mt 5.85, ta 2.46. Abdomen: length 2.68, width 1.16. Palp with long and numerous macrosetae in several rows along femur ventral and dorsal sides. Leg macrosetae: fe I dp 8, v 31, with large patch with ~ 50 short retrolateral macrosetae; ti I r 0 - 1 - 1, v 2 - 2 - 2 - 2; mt I p 0 - 1 - 0, v 2 - 2 - 2 - 2 - 2 - 2 - 2; ta I v 4; fe II v 23, with a large patch with ~ 50 short prolateral macrosetae; ti II p 1 - 1 - 0, v 2 - 2 - 2; mt II p 1 - 0 - 1, r 0 - 0 - 1, v 2 - 2 - 2 - 2 - 2 - 2; ta II v 7; fe III d 5, dp 4, dr 1, v 11; ti III p 1 - 1 - 0, vp 1 - 1 - 0, r 1 - 1 - 0; mt III p 1 - 0 - 1, r 1 - 1 - 1, v 2 - 2 - 2 - 2 - 2 - 2, dr- 0 - 0 - 1; ta III v 11; fe IV d 8; ti IV vp 1 - 1 - 0; mt IV p 0 - 0 - 1, r 0 - 0 - 1, v 2 - 2 - 2 - 2 - 2; ta IV v 15. Palp (Fig. 20): femur 1.5 times longer than carapace, cymbium about as long as bulb, with dense fringe of setae, longer on ventral face, bulb piriform, simple, sperm duct with 3 coils, embolus with conspicuous, translucent keel short, tip bent. State of the specimen: good, left palp dissected, left leg I disarticulated from tibia, left leg IV disarticulated from trochanter. Female (Paratype, MACN-Ar 38366). Carapace brown, stippled with dark brown and with dark brown Vshaped median pattern. Labium, endites and sternum dark brown. Legs dark brown, with longitudinal brown stripes, gradually becoming yellow brown on tips, femora and tibia I and II hirsute, with long setae. Abdomen grayish, light brown. Total length 13.1. Carapace 4.17 long, 3.65 wide. Clypeus 0.72 long. Eye sizes and interdistances: AME 0.16, PME 0.23, ALE 0.28, PLE 0.23, AME-AME 0.068, PME-PME 0.22. Sternum 2.17 long, 2.02 wide. Palp: femur 2.51, height 1.02, tibia length 1.43, height 0.91. Leg I: fe 5.58, pa 1.85, ti 4.9, mt 4.58, ta 2.73. II: fe 4.39, pa 1.48, ti 3.51, mt 3.56, ta missing. III: fe 3.34, pa 1.45, ti 2.67, mt 2.91, ta 1.71. IV: fe 4.92, pa 1.56, ti 4.22, mt 3.96, ta 2.08. Abdomen: length 9.05, width 6.85. Palp macrosetae on ventral surface of tibia and tarsus. Leg macrosetae: ti I v 2 - 2; mt I p 0 - 0 - 2, v 2 - 2 - 2 - 2 - 2; ta I v 15; tiI II v 2 - 2; mt II p 0 - 0 - 2, r 0 - 0 - 1, v 2 - 2 - 2 - 2; fe III d 2 - 0 - 0; tiI III dr 1 - 1 - 0; mt III p 1 - 0 - 1, r 1 - 1 - 1, v 2 - 2 - 2 - 2; ta III v 12; fe IV d 3 - 0 - 0; ti IV vp- 1 - 1 - 1; mt IV p 0 - 0 - 1, r 0 - 0 - 1, v 2 - 2 - 2 - 2 - 2; ta IV v 14. Calamistrum with 3 rows with tightly packed and neatly arranged setae, rows with ~ 20 - 18 - 11 setae, prolateral one extending well beyond calamistrum crest. Endogyne (Fig. 23) without membranous portion, spermathecae digitiform, inner spermathecae with glandular pores throughout, outer spermathecae with glandular pores restricted to apex. State of the specimen: good, left leg I disarticulated from tibia, right legs II – III set apart for molecular work, genitalia dissected. Variation. Females (n = 3): total length 12.50 – 13.10 (12.87), carapace length 4.17 – 5.03 (4.67), femur I length 5.25 – 6.22 (5.68), femur / carapace ratio 1.09 – 1.34 (1.22). The genital morphology of females varies, especially regarding the length of the spermathecae.
Biology & Conservation

Ecologically, the conservation status of Sahastata wunderlichi is officially designated as Extinct. Current field registries estimate a global population composed of an unquantified number of individuals, making habitat preservation critical to maintaining their wild populations.

It is typically endemic to desert, showing great physiological synergy with its surroundings. In terms of dietary preferences, it relies primarily on a diet of diverse organic matter. It exhibits specialized adaptations centered around a its natural cycle activity pattern, optimizing its energy conservation and interactions within its native ecosystem.

Ongoing biological monitoring and ecological advocacy emphasize the importance of protecting this species. The stability of its food chain and the prevention of fragmentation in its primary range are vital for the continued survival of Sahastata wunderlichi.

Energy & Activity Profile
Habitat & Adaptation Index
Quick Facts
Native RangeMorocco, Egypt, Sudan, Chad
Habitat RangeDesert
Lifespan
StatusExtinct
ScientificSahastata wunderlichi
Registry Info
LifespanUnknown
KingdomAnimalia
FamilyFilistatidae