egg sac


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egg sac

n.
The silken pouch in which many spiders deposit their eggs. Also called egg case.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
For continuous dependent variables (time to copulate, copulation duration, time to first oviposition, egg sac mass, female lifespan), analysis was through parametric tests.
At this time of year, the larger females are always found close to the tiny egg sac that contains the young spiders, which will hatch next spring.
When wolf spider mothers lay eggs, they wrap them in spider silk to form an egg sac. They carry the egg sac on their back and protect it aggressively.
Former chef Gemma, of Annfield Plain, County Durham, said: "As I peeled the banana, a white egg sac broke and hundreds of little spiders were crawling on my hands and arms and down my pyjamas.
Former chef Gemma, of Annfield Plain, Co Durham, said: "As I peeled the banana a white egg sac, which I had not noticed before, broke and hundreds of little spiders were crawling on my hands and arms and down my pyjamas.
Females are the only ones to build orb webs, and they do so for female reasons: every summer they lay an egg sac. During winter, spiders are inactive, close to the ground and out of sight.
One possible reason for its success lies in its fecundity, as it can produce an egg sac every four days during its earliest ovipositions and averages 22 egg sacs in a lifetime (Bouillon and Lekie 1961).
The whole process doesn't take long because quite soon, she will fly along the river course dipping her egg sac in the surface water and depositing her eggs into the river.
The egg sac, irregular in shape, about the size of a tennis ball, is often seen in the garden, suspended by silk threads.
As a child, I lived in an old house covered in vines, and twice I watched an egg sac burst and release hundreds of baby spiders across the room and over my head.
vagans females make a large silken egg sac 4-5em in diameter, containing around 500 eggs.