Sandflies are small; a body size of about 3 mm in length is typical for many species, which aids them in escaping notice. Their bite is not always felt, but leaves a small, round, reddish bump that starts itching hours or days later. Use of insect repellent is recommended in areas where sandflies are present.
Diet and reproduction
Phlebotomine sandflies have a diet that includes both blood and plant-derived sugar meals. Phlebotomine females, and only females, suck blood from various mammals, reptiles, and birds, while both sexes consume sugary substances including nectar, honeydew, and phloem sap from plants.
Some species are selective about their hosts, whereas others bite any suitable host they find. Some species can produce one clutch of eggs before their first blood meal; such females are said to practise autogenous or partly autogenous reproduction. Other species need a blood meal before they can produce any eggs at all; they are said to practise anautogenous reproduction. As far as is known, all species need a blood meal for every following clutch of eggs. Proteins and other nutrients in the blood they eat enable the females to produce the proteins and fats necessary for them to produce eggs after using up their bodily food stores. In feeding on blood, the flies use their mouthparts to initiate bleeding from the host. They then suck up the exposed blood. Like practically all blood-feeding parasites, they inject biochemicals that inhibit blood clotting, plus some that stimulate host mast cells to produce histamine; this distends capillary vessels, thereby promoting blood flow.
One blood meal can support the production of about 100 eggs. Females lay their eggs in humid soil rich in organic matter. Laboratory colonies of various phlebotomine sandfly species have been established for experimental study.
A 2018 study showed that several sandfly species in different parts of the world displayed a notable preference for Cannabis sativa as part of their plant-derived diet, suggesting it might be highly attractive to them.
Methods for studying phlebotomine sandflies
Phlebotomine sandflies are small and fragile insects, requiring careful handling during specimen preparation. For taxonomic study, specimens are typically cleared and mounted on microscope slides, with the genitalia usually mounted separately to facilitate identification. Certain organs, such as the gut and salivary glands, may also be dissected and examined for the detection of parasites, including leishmaniasis agents such as Leishmania, as well as associated viruses.
12Azar, D.; Nel, A.; Solignac, M.; Paicheler, J.-C.; Bouchet, F. (1999). "New genera and species of psychodoid flies from the Lower Cretaceous amber of Lebanon". Palaeontology. 42 (6): 1101–1136. Bibcode:1999Palgy..42.1101A. doi:10.1111/1475-4983.00112. S2CID84535813.
↑Braverman, Y. Nematocera (Ceratopogonidae, Psychodidae, Simuliidae and Culicidae) and control methods Rev. sci. tech. Off. int. Epiz., 1994,13(4), 1175-1199
12345Galati, E.A.B. (1995). "Phylogenetic systematics of Phlebotominae (Diptera) with emphasis on American groups". Boletín de Dirección de Malariologia y Ssaneamiento Ambiental. 35 (Suplemento 1): 133–142.
12345Barretto, M.P. (1962). "Novos subgeneros de Lutzomyia Franca, 1924 (Diptera, Psychodidae, subfamilia Phlebotominae)". Revista do Instituto de Medicina Tropical de São Paulo. 4: 91–100.
↑Poinar Jr, George. "Palaeomyia burmitis gen. n., sp. n.(Phlebotominidae: Diptera) a new genus of Cretaceous sandflies with evidence of blood sucking habits". Proceedings of the Entomological Society of Washington.
↑Mangabeira, O. (1941). "5a contribuição ao estudo dos Flebotomus. Viannamyia n. subg. (Diptera: Psychodidae)". Memórias do Instituto Oswaldo Cruz. 36 (251–262).
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