Indusium: the case made by an insect larva: a membranous layer of the embryo of Locustidae below the serosa. Explanation of Terms Used in Entomology John. serosa: the outer membrane that envelops the forming embryo, the amnion and the remainder of the egg. Explanation of Terms Used in Entomology John.
Parakeets need a varied but balanced diet and plenty of water. Dehydration can kill your bird quickly, so always make sure there's water in her cage. Instead of buying a standard bird seed, look for a seed mix that is designed specifically for parakeets. These often contain dried fruit and other nutrition your bird needs, such as calcium -- low blood calcium can cause sudden death. Give her some small pieces of fresh, raw fruits and vegetables to help round out her diet. Don't leave fruit in her cage all the time, though.
Here are some other fruit and vegetables you should also keep off of your pet birdâs plate. (For a full list of bad foods, check this list here.) The avocadoâs pit contains an oil that leaches a toxin called persin into the fruit. Signs of avocado toxicity include lethargy, anorexia, breathing difficulty and sudden death. Some birds have tasted avocado with no ill affects; however, that can depend on the variety of avocado and the bird species.