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sphaerularia bombi
''Sphaerularia bombi'' is an entomopathogenic nematode. It is parasite of bumblebees. It infects and sterilizes gynes or potential queens of bumblebees.
==Life Cycle==
''Sphaerularia bombi'' is a nematode that infects hibernating bumblebees. Bumblebees start seeking out a hibernation site for the winter season during fall and autumn. ''S. bombi'' would cause the infected bee multiple fail attempts to burrow into the ground, and with each fail attempt hundreds of 3rd stage larvae would be discharged from the bee’s anal opening. The larvae would eventually develop into the 4th larvae stage, this is the period where the infected bee dies. When a healthy bee finds its hibernation site, the 3rd stage larvae would infect the bee by penetrating it. The bee emerges to the surface during the spring season, and by that time the nematodes has developed into a mature female producing eggs within the bumblebee; 1st larvae stage. The eggs then hatches and molts into the 2nd larvae stage, which then rapidly molts into the 3rd larvae; the 3rd larvae stage is the infective stage for ''S. bombi''. These 3rd stage larvae would be in the bee’s hemocoel, midgut, and hindgut.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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