External morphology of sensory structures of fourth instar larvae of neotropical species of phlebotomine sand flies (Diptera: Psychodidae) under scanning electron microscopy
Mem. Inst. Oswaldo Cruz
;
96(8): 1103-1108, Nov. 2001. ilus, tab
Article
in English
| LILACS
| ID: lil-304648
ABSTRACT
In the present study, some morphological structures of antennae, maxillary palps and caudal setae of fourth instar larvae of laboratory-reared phlebotomine sand flies (Lutzomyia longipalpis, L. migonei, L. evandroi, L. lenti, L. sericea, L. whitmani and L. intermedia) of the State of Ceará, Brazil, were examined under scanning electron microscopy. The antennal structures exhibited considerable variation in the morphology and position. A prominent digitiform distal segment has been observed only on the antenna of species of the subgenus Nyssomyia. The taxonomic relevance of this and other antennal structure is discussed. The papiliform structures found in the maxillae and the porous structures of the caudal setae of all species examined may have chemosensory function. Further studies with transmission electron microscopy are needed to better understand the physiological function of these external structures
Full text:
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Index:
LILACS (Americas)
Main subject:
Phlebotomus
/
Sense Organs
Limits:
Animals
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2001
Type:
Article
Affiliation country:
Brazil
/
China
Institution/Affiliation country:
Instituto Nacional de Pesquisas da Amazônia/BR
/
Keele University/GB
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