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dc.contributor.authorFan Huangen_US
dc.contributor.authorWichai Srisukaen_US
dc.contributor.authorKittipat Aupaleeen_US
dc.contributor.authorThippawan Yasangaen_US
dc.contributor.authorRochana Phuackchantucken_US
dc.contributor.authorBenjawan Pitasawaten_US
dc.contributor.authorAnuluck Junkumen_US
dc.contributor.authorKwankamol Limsopathamen_US
dc.contributor.authorSangob Saniten_US
dc.contributor.authorJassada Saingamsooken_US
dc.contributor.authorHiroyuki Takaokaen_US
dc.contributor.authorAtiporn Saeungen_US
dc.description.abstractAntennae and maxillary palpi are the most important sensory organs involved in the behaviors of black flies. The ultrastructure of sensilla on these sensory appendages of two human-biting black fly species, Similium nigrogilvum and Simulium umphangense, was studied for the first time. Wild adult females of both species were collected in Umphang District, Tak Province, western Thailand. The morphology and distribution of sensilla were examined using scanning electron microscopy. Overall, the morphology of the antennae and maxillary palpi and distribution of sensilla are similar in the two species. Four major types of sensilla were found on the antennae of both species: sensilla basiconica (three subtypes), coeloconica, chaetica (four subtypes), and trichodea. However, sensilla basiconica subtype IV are only present on the antennal surface of S. nigrogilvum. Sensilla trichodea are the most abundant among the four types of sensilla that occur on the antennae of both species. Significant differences in the length of the antennae (scape and flagellomere IX), length of the maxillary palpi (whole and palpal segments I, III, IV and V), and the length and basal width of four sensilla types (trichodea, chaetica, basiconica, and coeloconica) were found. In addition, two types of sensilla were observed on the maxillary palpi: sensilla chaetica (three subtypes) and bulb-shaped sensilla. Differences were observed in the numbers of bulb-shaped sensilla in the sensory vesicles of S. nigrogilvum and S. umphangense. The findings are compared with the sensilla of other insects, and the probable functions of each sensillum type are discussed. The anatomical data on sensory organs derived from this study will help to better understand black fly behavior.en_US
dc.subjectAgricultural and Biological Sciencesen_US
dc.subjectImmunology and Microbiologyen_US
dc.titleUltrastructure of sensilla on the antennae and maxillary palpi of the human-biting black flies, Simulium nigrogilvum and Simulium umphangense, (Diptera: Simuliidae) in Thailanden_US
article.title.sourcetitleActa Tropicaen_US
article.volume232en_US of Medicine, Chiang Mai Universityen_US Malayaen_US Medical University for Nationalitiesen_US Sirikit Botanic Gardenen_US
Appears in Collections:CMUL: Journal Articles

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