Definition
Evarcha denticulata is a species of jumping spider belonging to the family Salticidae. It is known from South Africa and was formally described in the scientific literature in the early 2010s.
Overview
The species is part of the genus Evarcha, which comprises widely distributed African and Asian jumping spiders. E. denticulata was identified based on morphological characteristics distinct from other congeners and added to the regional arachnological fauna. The description was published by arachnologists who specialize in African Salticidae, expanding the known diversity of the genus in the southern African region.
Etymology / Origin
The specific epithet denticulata is derived from the Latin denticulatus, meaning “having small teeth.” This name refers to the denticulate (tooth‑like) structures observed on the male’s embolic (part of the copulatory organ) morphology, which are a diagnostic feature of the species.
Characteristics
-
Taxonomy:
- Kingdom: Animalia
- Phylum: Arthropoda
- Class: Arachnida
- Order: Araneae
- Family: Salticidae
- Genus: Evarcha
- Species: E. denticulata
-
Morphology:
- Size: Small to medium for jumping spiders, with adult body length typically ranging between 4–6 mm.
- Coloration: Generally exhibits a brownish‑gray dorsal coloration with variable patterning; the abdomen may show faint mottling.
- Sexual Dimorphism: Males possess a distinctive embolus with fine, tooth‑like projections (the “denticulata” feature). Females lack this structure but can be differentiated by the shape of the epigyne.
- Vision: Like other Salticidae, it has large anterior median eyes providing acute vision for hunting.
-
Behavior:
- Predatory Strategy: Actively hunts by leaping onto prey, relying on visual cues.
- Habitat: Recorded from shrubland and open forest floor litter, often under stones or within low vegetation.
-
Distribution:
- Known only from South Africa, with type specimens collected in the Gauteng Province (specific locality details are provided in the original description).
Related Topics
- Genus Evarcha – A diverse group of jumping spiders with over 70 described species, many of which are African endemics.
- Salticidae – The largest family of spiders, characterized by their jumping behavior and well‑developed vision.
- Arachnology of Southern Africa – Studies focusing on the taxonomy, ecology, and biogeography of spiders in the region, including ongoing surveys that continue to discover new species.
Note: The information presented reflects the currently published description of Evarcha denticulata. Further research may expand knowledge of its distribution, ecology, and evolutionary relationships.