| Issue |
Ann. Parasitol. Hum. Comp.
Volume 49, Number 6, 1974
|
|
|---|---|---|
| Page(s) | 741 - 750 | |
| DOI | https://doi.org/10.1051/parasite/1974496741 | |
| Published online | 11 October 2017 | |
Mémoire
The migratory Pathway of a Filarial Parasite (Breinlia sergenti) in a Mosquito Host (Aedes togoi)*
Les voies de migration larvaire d’une Filaire parasite (Breinlia sergenti) chez Aedes togoi.
Department of Parasitology, Faculty of Medicine, University of Singapore, Sepoy Lines, Singapore 3, Republic of Singapore.
A detailed observation on the site of development and the path of migration of the larvae of Breinlia sergenti (a filaria of slow loris) in Aedes togoi is presented. The larvae develop in the fat-body of mosquitoes. They are distributed abundantly in the fat-body of the abdomen and there is a scarcity of the larvae in the fat-body of the thorax and the head region. The majority of the larvae migrate into the head alongside the oesophagus and the thoracic ganglia. After entering the head, the mature larvae congregate in the large subcibarial haemocoelic space situated at the root of the proboscis. They then continue to migrate through the root of the proboscis into the lumen of the labium, where the infective larvae lie parallel to each other among the fascicles of the mouthparts in a unidirectional manner. The head of the larva is always directed towards the labella. In some heavily infected mosquitoes, the infective larvae are found to be coiled in the lumen of the labella.
Résumé
La description détaillée du lieu de développement et des voies de migration des larves de Breinlia sergenti chez Aedes togoi est donnée. Les larves se développent dans le corps gras des Moustiques. Leur distribution est abondante dans le corps gras de l’abdomen, rare dans celui du thorax et de la région céphalique. La majorité des larves migrent vers la tête en longeant l’œsophage et les ganglions lymphatiques. Après la pénétration dans la tête, les larves mûres s’accumulent dans le grand espace hémocœlique subcibarial à la base du proboscis qu’elles traversent ensuite. Puis elles poursuivent leur migration vers la lumière du labium où elles s’allongent parallèlement, la partie antérieure toujours dirigée vers les labelles. Chez certains Moustiques très infestés, les larves infestantes se trouvent enroulées dans la lumière des labelles.
© Masson, Paris 1974, transferred to Société Française de Parasitologie
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