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western conifer seed bug : ウィキペディア英語版
western conifer seed bug

The western conifer seed bug, ''Leptoglossus occidentalis'', sometimes abbreviated as WCSB, is a species of true bug (Hemiptera) in the family Coreidae. It was originally native to the warm-temperate western USA (California, Oregon and Nevada) but has in recent times expanded its range and become an invasive species in parts of Europe.
This species is sometimes colloquially called "the leaf-footed bug", but actual leaf-footed bugs are an entire group of species in ''Leptoglossus'' and related genera of the Coreidae; see for example the Florida leaf-footed bug, ''L. phyllopus''.
Western conifer seed bugs are sometimes mistakenly identified as stink bugs because of the unpleasant aroma they emit when disturbed.
==Description==
The average length is 16-20 millimeters, with males being smaller than females. They are able to fly, making a buzzing noise when airborne. Western conifer seed bugs are somewhat similar in appearance to the wheel bug (''Arilus cristatus'') and other Reduviidae (assassin bugs). These, being Cimicomorpha, are not very closely related to leaf-footed bugs as Heteroptera go; though both have a proboscis, but only the assassin bugs bite even if unprovoked, and ''L. occidentalis'' like its closest relatives can be most easily recognized by the expanded hindleg tibiae and by the alternating light and dark bands which run along the outer wing edges on the flaring sides of the abdomen. Their primary defense is to spray a bitter, offending smell, though sometimes they can smell pleasantly of apples, bananas or pine sap; however, if handled roughly they will stab with their proboscis, though they are hardly able to cause injury to humans as it is adapted only to suck plant sap and not, as in the assassin bugs, to inject poison.

Leptoglossus occidentalis MHNT Profil.jpg|Profile
Leptoglossus occidentalis MHNT abdomen.jpg|Abdomen
Cabeza de un Leptoglossus occidentalis, Hartelholz, Múnich, Alemania, 2014-04-05, DD 01.JPG|Detail of the head


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「western conifer seed bug」の詳細全文を読む



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