Histopathological effects of ectoparasites on integument were examined for a wild population of the side-blotched lizard Uta stansburiana. These included the trombiculid Neotrombicula californica, the pterygosomatid mite Geckobiella texana; the macronyssid mite Ophionyssus natricis (Macronyssidae) and the ixodid tick Ixodes pacificus. A diffuse inflammatory response occurred at the site of chigger and tick attachment which consisted of histiocyte, heterophil, fibroblast and lymphocyte infiltration that often extended into the dermis. Granuloma formation also was noted. The most prevalent parasite was N. californica which frequently occurred in large aggregations above the eyelids. Ectoparasites were most abundant from February through April.
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1 January 1991
INTEGUMENTAL LESIONS CAUSED BY ECTOPARASITES IN A WILD POPULATION OF THE SIDE-BLOTCHED LIZARD (UTA STANSBURIANA)
Stephen R. Goldberg,
Charles R. Bursey
Journal of Wildlife Diseases
Vol. 27 • No. 1
January 1991
Vol. 27 • No. 1
January 1991
chigger
ectoparasite
Geckobiella texana
granuloma
histopathology
Iguanidae
Inflammation