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Australian wolf spider bites (Lycosidae): clinical effects and influence of species on bite circumstances

Isbister, GK and Framenau, VW (2004). Australian wolf spider bites (Lycosidae): clinical effects and influence of species on bite circumstances. Clinical Toxicology,42(2):153-161.

Document type: Journal Article
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Title Australian wolf spider bites (Lycosidae): clinical effects and influence of species on bite circumstances
Author Isbister, GK
Framenau, VW
Journal Name Clinical Toxicology
Publication Date 2004
Volume Number 42
Issue Number 2
ISSN 1556-3650   (check CDU catalogue open catalogue search in new window)
Start Page 153
End Page 161
Total Pages 9
Place of Publication Monticello
Publisher Dekker
Field of Research 1115 - Pharmacology and Pharmaceutical Sciences
HERDC Category C1 - Journal Article (DEST)
Abstract BACKGROUND: Necrotic arachnidism continues to be attributed to wolf spider bites. This study investigates the clinical effects of bites by wolf spiders in Australia (family Lycosidae). METHODS: Subjects were recruited prospectively from February 1999 to April 2001 from participating emergency departments or state poison information centers. Subjects were included if they had a definite bite by a wolf spider and had collected the spider, which was later identified by an arachnologist. Spiders were identified to the lowest taxonomic level possible and cephalothorax width was measured to correlate bite effects and spider size. RESULTS: There were 45 definite wolf spider bites (23 male and 22 female patients; age range 1 to 69 years, median age 28 years). Species level identifications (14 species) were possible for 31 of 43 spiders belonging to seven different generic groupings. Most bites were by spiders from four generic groupings, Tasmanicosa (including 'Lycosa') (15), Venatrix (8), Venator (10), and Hogna (7). Bites occurred more commonly in south-eastern Australia and occurred throughout the year, with 7 bites (16%) in late autumn or winter. In 7 cases (16%) the person was swimming in or cleaning a pool. Seventy-two percent of bites occurred on distal parts of limbs. Pain occurred in all bites and was severe in 11 cases (24%), with a median duration of 10 min (IQR: 2-60 min). Other effects included puncture marks/bleeding (33%), swelling (20%), redness (67%), and itchiness (13%). Minor systemic effects occurred in three patients (7%): nausea (two), headache (one) and malaise (one). There were no cases of necrotic ulcers [0%; 97.5% CI 0-8%]. Tasmanicosa spider bites caused significantly more itchiness and redness, and large spiders (
Keywords Australian
DOI   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
Additional Notes 3766 (Journal) DA - 20040624IS - 0731-3810 (Print)LA - engPT - Journal ArticlePT - Research Support, Non-U.S. Gov'tSB - AIMSB - IM
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Created: Mon, 17 Dec 2007, 09:02:11 CST