Morphological study of the larval spiracular system in eight Lutzomyia species (Diptera: Psychodidae)
Mem. Inst. Oswaldo Cruz
;
93(1): 71-9, Jan.-Feb. 1998. ilus, tab
Article
in English
| LILACS
| ID: lil-201997
ABSTRACT
The morphology of the spiracles of fourth instar larva in eight sandfly species were examined by light and scanning electron microscopy. Species studied were: Lutzomyia longipalpis (Lutz & Neiva) L. ovallesi (Ortiz), L. youngi Feliciangeli & Murillo, L. evansi (Nuñez-Tovar), L. trinidadensis (Newstead), L. migonei (França), L. absonodonta Feliciangeli, and L. venezuelensis (Floch & Abonnenc). In larvae of all eight species both thoracic and abdominal spiracles are located at the top of a globular bulge. Their structure consists of a spiracular plate with a sclerotized central portion and a rose-like peripheral portion. The latter has circularly arranged papillae, separated from each other by elongated septa. Each papilla is longitudinally crossed by a fine cleft dividing it into two identical parts. The taxonomic and adaptative value of spiracular morphology is discussed.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Psychodidae
/
Larva
Limits:
Animals
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
1998
Type:
Article
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