first record of the mediterranean recluse spider loxosceles rufescens (araneae: sicariidae) from iran.
نویسندگان
چکیده
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 103 accepted 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 importance to determine a specific geographical distribution of these spiders. collecting methods include visual inspection and direct hand collecting. all of the specimens were collected in tehran.six specimens of both sexes were collected from parks, houses and apartments. the characteristics of the genus, which are the unique arrangement of six eyes in three diads, the violin shaped mark on the cephalothorax, and 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 degree of this species.
منابع مشابه
First Record of the Mediterranean Recluse Spider Loxosceles rufescens (Araneae: Sicariidae) from Iran
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 103 accepted 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 character...
متن کاملMediterranean Recluse Spider, Loxosceles rufescens (Araneae: Sicariidae) from Charkhab Cave, Southern Iran
BACKGROUND The best-known dangerous spiders belong to the six genera. The genus Loxosceles or violin spiders are well known for their ability to cause skin necrosis or loxoscelism. All Loxosceles species have medical importance due to their necrotizing venom. The present article reports the occurrence of L. rufescens in Charkhab Cave, south of Iran (Larestan). METHODS The specimens were colle...
متن کاملmediterranean recluse spider, loxosceles rufescens (araneae: sicariidae) from charkhab cave, southern iran
background: the best-known dangerous spiders belong to the six genera. the genus loxosceles or violin spiders are well known for their ability to cause skin necrosis or loxoscelism. all loxosceles species have medical importance due to their necrotizing venom. the present article reports the occurrence of l. rufescens in charkhab cave, south of iran (larestan). methods: the specimens were coll...
متن کاملInfluence of spider silk on refugia preferences of the recluse spiders Loxosceles reclusa and Loxosceles laeta (Araneae: Sicariidae).
In a previous experimental study, recluse spiders Loxosceles reclusa Gertsch and Mulaik and Loxosceles laeta (Nicolet) (Araneae: Sicariidae) preferred small cardboard refugia covered with conspecific silk compared with never-occupied refugia. Herein, we investigated some factors that might be responsible for this preference using similar cardboard refugia. When the two Loxosceles species were g...
متن کاملBrown widow spider bite (Loxosceles sp., Araneae, Sicariidae): A case report from Kashan, Iran
A 48-year-old woman who worked as a cleaner in a Kashan University of Medical Sciences dormitory received a spider bite while collecting garbage on a summer afternoon. She feltimmediate irritation on her arm. She noticed a spider, which she removed and killed. The irritation, itching, and redness on her arm continued. Her hand became edematous and painful after four days and she suffered from i...
متن کاملPeriodicity of Molting and Resumption of Post-Molt Feeding in the Brown Recluse Spider Loxosceles reclusa (Araneae: Sicariidae)
The periodicity of molting and resumption of feeding after molting was investigated in the brown recluse spider, Loxosceles reclusa Gertsch and Mulaik (Sicariidae). Spiders molted almost every hour of the day but there was a tendency to molt more frequently between 8 A.M. and 1 A.M. Spiderlings resumed feeding after 20 hrs post-molt with feeding occuring more frequently around the 43rd hour and...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
journal of arthropod-borne diseasesجلد ۸، شماره ۲، صفحات ۲۲۸-۲۳۱
کلمات کلیدی
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023