All Categories:


Close-up of a male and female tick : Free Stock Photo
Title: Close-up of a male and female tick
Description: This photograph depicts a dorsal view of both a female (Lt), and male (Rt) Rocky Mountain wood tick, Dermacentor andersoni. This tick specie is a known North American vector of Rickettsia rickettsii, which is the etiologic agent of Rocky Mountain spotted fever. Note the smaller size of the female's scutum compared to the male's larger scutum. From the Latin word for 'shield', the scutum, i.e., dorsal shield, covers only a small part of the female's dorsal surface, thereby, enabling her abdomen to expand, becoming engorged during feeding. The male's scutum covers his entire dorsal surface, and is mottled with brown markings overall, while the female's small scutum sports an almost entirely a cream-colored gray surface.
By: CDC/ Dr. Christopher Paddock acquired from Public Health Image Library (Website)
Views: 414
Downloads: 17
Keywords: Animals, Bites, Bugs, Insects, Pests, Ticks
License: Public Domain
By downloading this image, you agree to abide by the terms of use of this license.
PD Info: This image is licensed under Public Domain.
This image is a work of the United States government. A work of the United States government, as defined by United States copyright law, is 'a work prepared by an officer or employee of the U.S. government as part of that person's official duties.' In general, under section 105 of the Copyright Act, such works are not entitled to domestic copyright protection under U.S. law.
License Info
Download: Largest
Size: 6000 x 3000
File size: 2.6 MB
File type: jpg
Download: Small
Size: 958 x 479
File size: 95.6 KB
File type: jpg
Similar Photos:
Free Stock Photos: Tick
(22 results)
Popular | Newest | Downloads | Views