Morphological aspects of immature stages of Migonemyia migonei (Diptera: Psychodidae, Phlebotominae), an important vector of Leishmaniosis in South America, described by scanning electron microscopy
Fig 6
Scanning electron microscopy of the mouthparts of fourth instar larva of Migonemyia migonei.
Head of fourth instar in ventral view. Forehead exhibits two weakly brush-like trichoid sensilla (wb-lts) inserted between and slightly forward of the antennae (ant), and long trichoid sensilla (lts) that are inserted further down toward the mouthparts, cs- campaniform sensilla; 1b –labrum; mb—mandible; mx—maxilla; me—mentum; m—mentum; s1-s6– mandible setae; mp—maxillary palpus; sts—short trichoid sensilla. The setae were numbered according to the chaetotaxy proposed herein: (1 = wb-lts) frontoclipeal anterior setae (weakly brush-like trichoid sensilla); (2 = b-lts) frontoclipeal posterior setae with barbed shape (brush-like trichoid sensilla); (3 = lts) the genal anterior seta with a simple spine form (long and bare trichoid sensilla); (4 = b-lts) the genal medial seta is barbed and brush-like trichoid; (6) the postgenal and (7) subgenal setae are simple (6 and 7 = bare trichoid sensilla; Scale bar: 20 μm).