ID#: 20853
Description: Caption:
This photograph depicted a jet black female northern black widow spider, Latrodectus variolus, that was motionless on a branch, which was coated with what appeared to be fuzzy web material. Note the characteristic red-colored hourglass located on her inferior abdominal surface. What is important in this species, is that the hourglass is bisected, forming two triangles, their apices pointing towards each other. Though the L. variolus bite is poisonous, it only occurs infrequently, for its timidity forces it to flee from a threatening situation it perceives posed by humans.
High Resolution: Click here for hi-resolution image (18.35 MB)
Content Providers(s): CDC/ M. Parsons
Creation Date: 1966
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.