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Lutzomyia shannoni : ウィキペディア英語版 | Lutzomyia shannoni
''Lutzomyia shannoni'' is a species of fly in the subfamily Phlebotominae, the phlebotomine sand flies. It is native to the Americas from the southeastern United States to northern Argentina. It has a disjunct distribution, and is only found in regions with suitable climates, habitat types, and host animals.〔Ferro, C., et al. (1998). (Life cycle and fecundity analysis of ''Lutzomyia shannoni'' (Dyar) (Diptera: Psychodidae). ) ''Mem Inst Oswaldo Cruz, Rio de Janeiro'' 93(2), 195-99.〕 It is well known as a vector of the vesicular stomatitis virus, which causes the disease vesicular stomatitis in animals, particularly livestock.〔 ==Description== This insect belongs to the order Diptera, the true flies. The adult has wings less than 3 millimeters long, which are held erect. It has a narrow silvery-brown body and long legs. It is a sexually dimorphic species; the male has a slender abdomen with large terminalia at the end, and it lacks mandibles, while the female has mandibles and a wider abdomen.〔Mann, R. S., et al. (A Sand Fly, ''Lutzomyia shannoni'' Dyar (Insecta: Diptera: Psychodidae: Phlebotomine). ) EENY-421. Entomology and Nematology. Florida Cooperative Extension Service. University of Florida IFAS. 2009.〕 Only the female feeds on the blood of vertebrates, which requires mandibles. The abdomen becomes distended with the ingestion of a blood meal.〔 The dark brown eggs are elongated in shape, about 0.3 millimeters long by 0.1 millimeters wide. The newly emerged larva is up to about 0.7 millimeters in length, not counting the two long, thin caudal setae, which are twice the length of the body. The new larva is cream-colored with a light brown, well-developed head.〔 By the second and third instars, there are four caudal setae.〔 The fourth instar larva is around 5 millimeters long including the caudal setae, which are about as long as the body.〔 The pupa resembles a butterfly chrysalis.〔
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