Atrax christenseni
Newcastle Funnel-Web Spider (Atrax christenseni) Identification
A range-restricted Atrax funnel-web from around Newcastle, New South Wales; treat any plausible funnel-web encounter or bite as an emergency rather than trying to name it from a photo.
Medical emergency potentialThe Newcastle funnel-web spider, Atrax christenseni, is a distinct Atrax species described in 2025 after genetic and anatomical work separated the former broad Sydney funnel-web concept into three species. The examined material came from a small area around Newcastle, not from the whole Hunter or eastern Australia. It is a large glossy dark funnel-web, but those features identify a high-priority safety group rather than this exact species. A robust dark spider, silk-lined ground retreat and Newcastle-area location can support a cautious possible match; adult anatomical work is needed to separate A. christenseni from other Atrax. Do not handle, provoke or collect one for identification. Treat any suspected bite from a plausible funnel-web as an Australian medical emergency.
Quick identification
- Large, robust mygalomorph with a glossy dark brown to black carapace
- Rear spinnerets can appear finger-like at the abdomen tip
- A silk-lined ground burrow or sheltered crevice is useful context
- A Newcastle-area New South Wales locality supports a possible match but cannot prove the species
- Mature male Atrax have a conspicuous spur on the second leg, but this is not a safe field check
What to check next
Keep clear, note the broad locality and photograph only with zoom if it can be done without moving the spider or its retreat. Do not try to inspect the leg spur, spinnerets or fangs. If an indoor spider must be isolated for immediate safety, use a deep smooth-sided container and rigid card only when it can be done without close handling; otherwise use a trained professional. A suspected bite takes priority over identification.
When to seek medical help
Treat a suspected bite from this spider, or from any big dark funnel-web-type spider in eastern Australia, as an emergency. Call 000 immediately. Keep the person still and lying down, apply a pressure-immobilisation bandage and splint if trained and equipped, and follow emergency instructions. Do not wash the bite, cut it, suck it, use ice or a tourniquet, or delay first aid to catch the spider. A safe photo can help later, but hospital clinicians decide treatment.
Where it is usually seen
Documented Atrax christenseni material is from a small Newcastle-area range in New South Wales. It is associated with silk-lined ground burrows and sheltered spaces such as soil beneath rocks. A dark spider beside a pool, in a shoe, garden or house may be a wandering funnel-web or another mygalomorph; that setting alone does not establish the species.