ovisac


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ovisac

(ō′vĭ-săk′)
n.
An egg-containing capsule, such as an ootheca or a Graafian follicle.
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References in periodicals archive ?
Crawlers used in this experiment were obtained from newly developed ovisacs which were transferred from the rearing area to glass tubes (5 cm ht X 1 cm diam) closed with Parafilm[R] and checked daily until the eggs hatched (after hatching nymphs tend to cluster under the ovisac, which is easily seen through the glass).
Quintero, reared from pupae found on insect body or from ovisac of Crypticerya multicicatrices Kondo & Unruh (Hemiptera: Monophlebidae) on Caesalpinia peltophoroides Benth.
3) creamy white oblong eggs in 3-5 white waxy ovisacs produced under the abdomen at different time intervals during oviposition period.
These results suggest that the distance from the ovisac to the center of the bromeliad may influence the type of maternal behavior seen.
Several semithin (1-[micro]m) sections were cut, followed by at least 10-20 ultrathin (70-[micro]m)sections until the entire roots and ovisac regions were sectioned.
They also produce a large ovisac full of eggs that appear to provide nutrition for crabs.
The ovisacs were carefully teased open with blunt probes under a stereomicroscope and the number of eggs present in each ovisac counted.
Newly oviposited nymphs in ovisacs from each of the gravid females were removed daily and the total number of immature per ovisac was counted.
On the basis of these observations, Southward (1999) has proposed that eggs are fertilized either in the ovisac just before spawning or externally as the eggs are released.