Scanning electron microscopy of eggs of Ochlerotatus (Protomacleaya) terrens Walker

Journal of the American Mosquito Control Association
Jeronimo AlencarJacenir Santos-Mallet

Abstract

Observations on the morphological ultrastructure of eggs of Ochlerotatus (Protomacleaya) terrens (Diptera: Culicidae) were conducted by using scanning electron microscopy. Morphometry of the principal structures was obtained with the aid of Semafore analysis software. Eggs of Oc. terrens from females caught in the Biological Reserve of Tinguá, State of Rio de Janeiro, Brazil, were utilized. The eggs presented elliptical outlines, with a length of approximately 649.0 microm and width of 168.7 microm. The egg index (length to width ratio) was 3.85 microm. The exochorion had hexagonal and sometimes pentagonal ornamentation. Inside the chorionic cells were small, well-distributed tubercles with a large range of sizes. The micropylar apparatus, located in the anterior region of the egg, presented a collar with a poorly visible frame, with borders of indeterminate extent and margins without a defined transition area, and a thickness of approximately 1.8 microm. The micropyle was plugged.

References

May 1, 1991·Journal of Medical Entomology·J R Linley, D D Chadee
Jul 1, 1968·Canadian Journal of Zoology·K S Kalpage, R A Brust
Oct 22, 2003·Revista de saúde pública·Jeronimo AlencarJacenir R Santos-Mallet
Feb 5, 2005·Journal of Medical Entomology·Jeronimo AlencarJacenir R Santos-Mallet

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Citations

Dec 14, 2011·Micron : the International Research and Review Journal for Microscopy·Juliana Barreto PachecoJeronimo Alencar
Apr 29, 2008·Journal of the American Mosquito Control Association·Jeronimo AlencarJacenir Reis Dos Santos-Mallet
Jul 24, 2010·Journal of the American Mosquito Control Association·Jacenir Reis Dos Santos-MalletCarlos Brisola Marcondes
Dec 11, 2019·Journal of Medical Entomology·Francisco Augusto da Silva FerreiraWanderli Pedro Tadei

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Methods Mentioned

BETA
scanning electron microscopy

Software Mentioned

Semafore

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