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First Record of the Mediterranean Recluse Spider Loxosceles rufescens (Araneae: Sicariidae) from Iran
Tekijät: Zamani A, Rafinejad J
Kustantaja: IRANIAN SCIENTIFIC SOCIETY MEDICAL ENTOMOLOGY
Julkaisuvuosi: 2014
Journal: Journal of Arthropod-Borne Diseases
Tietokannassa oleva lehden nimi: JOURNAL OF ARTHROPOD-BORNE DISEASES
Lehden akronyymi: J ARTHROPOD-BORNE DI
Vuosikerta: 8
Numero: 2
Aloitussivu: 228
Lopetussivu: 231
Sivujen määrä: 4
ISSN: 2322-1984
Verkko-osoite: http://jad.tums.ac.ir/index.php/jad/article/view/202
Tiivistelmä
Loxosceles rufescens, commonly known as the Mediterranean Recluse or Mediterranean Fiddle-Back Spider is recorded from Iran for the first time. The genus Loxosceles contains 100 described species, two of them (including L. rufescens) are cosmopolitan. All Loxosceles species tested so far possess necrotic venoms, which is a unique characteristic among the Order Araneae. Considering this characteristic, it is of medical/arachnological importance to determine a specific geographical distribution of these spiders. Collecting methods include visual inspection and direct hand collecting. All the specimens were collected in Tehran, Iran.Six specimens of both sexes were collected from parks, houses and apartments. The characteristics of the genus, which are the arrangement of six eyes in three pairs and also the violin shaped mark on the cephalothorax, as well as the short tibia of adult male palpi with narrow base and it's embolus which is about as long as the width of the globular bulb were observed and recorded. Having the cytotoxicity of the venom and its urban distribution in mind, L. rufescens is probably among the more important spider species of Iran. Since there are no reports of loxoscelism from Iran, we assume that the bites are either infrequent or misdiagnosed. Therefore further studies are needed to clarify the medical importance of this species.
Loxosceles rufescens, commonly known as the Mediterranean Recluse or Mediterranean Fiddle-Back Spider is recorded from Iran for the first time. The genus Loxosceles contains 100 described species, two of them (including L. rufescens) are cosmopolitan. All Loxosceles species tested so far possess necrotic venoms, which is a unique characteristic among the Order Araneae. Considering this characteristic, it is of medical/arachnological importance to determine a specific geographical distribution of these spiders. Collecting methods include visual inspection and direct hand collecting. All the specimens were collected in Tehran, Iran.Six specimens of both sexes were collected from parks, houses and apartments. The characteristics of the genus, which are the arrangement of six eyes in three pairs and also the violin shaped mark on the cephalothorax, as well as the short tibia of adult male palpi with narrow base and it's embolus which is about as long as the width of the globular bulb were observed and recorded. Having the cytotoxicity of the venom and its urban distribution in mind, L. rufescens is probably among the more important spider species of Iran. Since there are no reports of loxoscelism from Iran, we assume that the bites are either infrequent or misdiagnosed. Therefore further studies are needed to clarify the medical importance of this species.
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