Tityus asthenes

Tityus asthenes

"Tityus asthenes" is a significantly venomous scorpion endemic to South America. Sometimes it is known as Peruvian black scorpion.
Tityus asthenes - UV light - portrait, Sani Lodge, Ecuador A decent-sized beautiful scorpion, like a compact tank. As per usual, I've assessed its danger only months after the event. The description that its venomous but not aggressive matches our experience though. Included are some UV shots, have a look at this tag for more UV captures:

https://www.jungledragon.com/tag/52117/ultra_violet_light.html

https://www.jungledragon.com/image/131483/tityus_asthenes_sani_lodge_ecuador.html
https://www.jungledragon.com/image/131479/tityus_asthenes_-_portrait_sani_lodge_ecuador.html
https://www.jungledragon.com/image/131482/tityus_asthenes_-_uv_light_sani_lodge_ecuador.html
https://www.jungledragon.com/image/131480/tityus_asthenes_-_uv_light_-_frontal_sani_lodge_ecuador.html
 Ecuador,Ecuador 2021,Geotagged,Sani Lodge,South America,Spring,Tityus asthenes,Ultra Violet Light,World,Yasuni National Park

Appearance

"Tityus asthenes" has a black to dark brown color, only on the tarsus, the pedipalpal fingertips and the mesosomal tergites are lighter than the rest of the body, the younger specimens have more yellowish and variegated pigmentation. The female basal lamellae are dilated in most specimens. Its total length varies from 60 to 75 mm, its pedipalpal fingers have 17 rows of granules, and both sexes have 18 to 22 pectinal teeth. This species has sexual dysmorphism, adult males are longer and thinner, with pedipalps and metasomal segments, although less marked than in "T. obscurus". Juveniles are sexed by checking the exúvil for the dilated basal middle lamellae, indicating the females. Males mature at instar 6, although this can also occur at instar 5, females also mature at instar 6.
Tityus asthenes, Sani Lodge, Ecuador A decent-sized beautiful scorpion, like a compact tank. As per usual, I've assessed its danger only months after the event. The description that its venomous but not aggressive matches our experience though. Included are some UV shots, have a look at this tag for more UV captures:

https://www.jungledragon.com/tag/52117/ultra_violet_light.html

https://www.jungledragon.com/image/131479/tityus_asthenes_-_portrait_sani_lodge_ecuador.html
https://www.jungledragon.com/image/131482/tityus_asthenes_-_uv_light_sani_lodge_ecuador.html
https://www.jungledragon.com/image/131480/tityus_asthenes_-_uv_light_-_frontal_sani_lodge_ecuador.html
https://www.jungledragon.com/image/131481/tityus_asthenes_-_uv_light_-_portrait_sani_lodge_ecuador.html
 Ecuador,Ecuador 2021,Geotagged,Sani Lodge,South America,Spring,Tityus asthenes,World,Yasuni National Park

Behavior

This species does not dig burrows, they hide during the day, their habits are mainly nocturnal, they do not actively feed, they usually attack by ambush, waiting for their prey to pass by to attack. These scorpions are relatively non-aggressive towards humans, when they feel threatened they can flee or react very quickly, juveniles are more nervous than adults.
Tityus asthenes - portrait, Sani Lodge, Ecuador A decent-sized beautiful scorpion, like a compact tank. As per usual, I've assessed its danger only months after the event. The description that its venomous but not aggressive matches our experience though. Included are some UV shots, have a look at this tag for more UV captures:

https://www.jungledragon.com/tag/52117/ultra_violet_light.html

https://www.jungledragon.com/image/131483/tityus_asthenes_sani_lodge_ecuador.html
https://www.jungledragon.com/image/131482/tityus_asthenes_-_uv_light_sani_lodge_ecuador.html
https://www.jungledragon.com/image/131480/tityus_asthenes_-_uv_light_-_frontal_sani_lodge_ecuador.html
https://www.jungledragon.com/image/131481/tityus_asthenes_-_uv_light_-_portrait_sani_lodge_ecuador.html
 Ecuador,Ecuador 2021,Geotagged,Sani Lodge,South America,Spring,Tityus asthenes,World,Yasuni National Park

Habitat

"Tityus asthenes" is a Latin American species which can be found in Peru.
Tityus asthenes - UV light, Sani Lodge, Ecuador A decent-sized beautiful scorpion, like a compact tank. As per usual, I've assessed its danger only months after the event. The description that its venomous but not aggressive matches our experience though. Included are some UV shots, have a look at this tag for more UV captures:

https://www.jungledragon.com/tag/52117/ultra_violet_light.html

https://www.jungledragon.com/image/131483/tityus_asthenes_sani_lodge_ecuador.html
https://www.jungledragon.com/image/131479/tityus_asthenes_-_portrait_sani_lodge_ecuador.html
https://www.jungledragon.com/image/131480/tityus_asthenes_-_uv_light_-_frontal_sani_lodge_ecuador.html
https://www.jungledragon.com/image/131481/tityus_asthenes_-_uv_light_-_portrait_sani_lodge_ecuador.html
 Ecuador,Ecuador 2021,Geotagged,Sani Lodge,South America,Spring,Tityus asthenes,Ultra Violet Light,World,Yasuni National Park

Uses

"Tityus asthenes" is a venomous species and should not be disturbed, the LD50 value for its venom is 4.14 mg / kg. Its venom is mainly composed of excitatory neurotoxins. The main symptoms can include edema, local pain and paresthesia, the systemic symptoms are characterized by vomiting, profuse sweating, drooling, breathing problems, tachycardia and abdominal pain.

References:

Some text fragments are auto parsed from Wikipedia.

Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassArachnida
OrderScorpiones
FamilyButhidae
GenusTityus
SpeciesT. asthenes
Photographed in
Ecuador