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Other Spiders


For a spider bite to be regarded as a definite bite (by a particular type of spider), all of the following must occur:

  • Evidence of a bite: clinical effects at the time or soon after the bite, including discomfort or pain;
  • Collection of the spider at the time or immediately after the bite;
  • Identification of the spider by an expert arachnologist.

Discomfort or pain always occurs with spider bites; their absence goes against the diagnosis. Other important local effects include:

  • Fang marks/bleeding are indicative of fang size and so the size of the spider;
  • Erythaema/red mark;
  • Itchiness (immediate or delayed);
  • Swelling/oedema is uncommon.

Over 80% of bites are caused by 6 major families of spiders:

  • Orb weavers (Araneidae )
  • Huntsmen (Sparassidae )
  • White-tail spiders (Lamponidae :Lampona spp.)
  • Redback spiders (Latrodectus hasselti) and cupboard spiders (Theridiidae )
  • Wolf spiders (Lycosidae )
  • Jumping spiders (Salticidae )

The majority of cases of bites involving these spiders result in local pain alone. Systemic effects are rare and mild.

Medscape Spider Slide Show

wikitox/ · Last modified: 2018/09/01 09:00 by

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