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Solenopotes capillatus
The little blue cattle louse is the common name for the ''Solenopotes capillatus'' in the United States but is known as the tubercle-bearing louse in Australia. 〔Lloyd, J. E., et al. (2001). (Persistent efficacy of doramectin topical solution against induced infestations of ''Bovicola bovis'' and ''Solenopotes capillatus''. ) ''Veterinary Parasitology'' 102(3), 235-41.〕 This louse is the smallest of the sucking lice that occur on cattle and is a relatively immobile species. They are found all around the world in distribution but are restricted mainly to areas with domestic livestock. The little blue cattle louse is most often found on the head of its host, primarily the face and jaw region, but sporadically is found on other body parts. It is relatively immobile so typically will not relocate on its host’s body. The louse is spread by direct contact and is considered an ectoparasite.〔"Ectoparasites - Solenopotes." Ectoparasites - Solenopotes. Merial, n.d. Web. 21 Oct. 2013.〕
Symptomatically this louse can cause irritation, restlessness, and possibly a decrease in milk production. The louse is also known to cause alopecia (hair loss) from scratching that can lead to infection. Heavy infestation can cause anemia from blood loss.〔Juneau, K. J. and P. E. Kaufman. (''Solenopotes capillatus'' (Enderlein). ) Publication Number EENY-422. Entomology and Nematology. University of Florida IFAS. 2007.〕
The louse's life cycle consists of three instars and for completion of the cycle, from egg to egg, is between 27 to 29 days.〔Grubbs, M. A., et al. (2007). (Life cycle details of ''Solenopotes capillatus'' (Anoplura: Linognathidae). ) ''Journal of Economic Entomology'' 100(2), 619-21.〕 The adult louse has a short broad head, broad sensorial on segments 4 and 5 of its antennae. It has a hexagonal shaped sternal plate on the thorax and prominent abdominal spiracles. Its hind and middle legs are the same length while its front tarsal claws smaller.〔
==References==
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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