ID#: 10521
Caption:
Magnified 500X, this is the third of four scanning electron microscopic (SEM) images that are representative of successively greater magnifications of the thoracic region of an unidentified mosquito discovered in the suburbs of Decatur, Georgia. At a magnification 5X greater than PHIL 10519, and twice that of 10520, this SEM depicts the morphology of this region focusing on the anatomical feature known as the spiracle, which is one of two orifices located on the thorax through which the insect breaths. Note that PHIL 10522 is at an even greater magnification of the spiracle. There are eight additional spiracles located on the abdominal region as well. You’ll also note the presence of numerous setae, or sensorial hairs, as well as many light-weight scales, all of which are composed of the same material as the exoskeleton itself, a substance known as chitin.
High Resolution: Click here for hi-resolution image (5.5 MB)
Content Provider(s): CDC/ Janice Haney Carr
Creation Date: 2008
Photo Credit: Elizabeth Perez
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.