Calendar. The structures I mentioned above are the typical structures you find on most insect eggs. Log In. Many aquatic insect eggs don’t have aeropyles at all and depend on oxygen flowing directly through the shell. Upcoming Events National Moth Week photos of insects and people. « Bug Girl’s Blog, Circus of the Spineless #60! There’s a lot of variation, but they all share a common goal: allowing oxygen to enter the egg. Step 3 They will help you identify the eggs and the insect… Those lines represent the micropyles: Eggshells are meant to contain the animal growing inside them and protect them from the environment. Sorry, your blog cannot share posts by email. To identify an egg is not that easy. The arrow in the image above points to an aeropyle on the chorion of Abedus herberti and you can see several of them dotting the surface of the egg. ), but those polygons represent the shape of cells that are involved in building the chorion and they’re visible on many insect eggs. Other pests can be identified by their larvae, if their eggs are too small or aren't noticeable. Would love to see a pic of a hydropyle to compare structure with the other two entry paths you showed for sperm and for air. Nice! That area is called the micropylar region. Steve Schwartzman These eggs, resembling a ninja’s iron spike ball, belong to the stink bug (Podisus maculiventris). © 2009-2016 C. L. Goforth. The pattern of polygons strikes me as similar to the patterns I’ve noticed (and been surprised to find) on the surface of ice that has coated plants during an ice storm. Sperm have to get inside the eggs to fertilize them and have to go through the shell to do so. There is a second micropyle to the left. You NEVER cease to amaze me. The momma stink bug actually has the ability to choose the color of her eggs. Dennis, Pingback: Circus of the Spineless #60! Respiration plays a big role, and I’ve done the morphology work to figure out how oxygen gets into the eggs. They’re a whole lot bigger than most other insect eggs, so they’re very easy to work with. This blog is a great discovery for me …. Insect Eggs Identification Photos . Insect eggs come in a wide variety of shapes, sizes and colours. Okay, first things first! Let’s zoom back out a bit and take a look at the structure of the top of the egg again: In this image you can see the fine structure of the chorion and see all the little polygons that cover the surface of the egg. Most are found in clusters, but others are found singly. These are an artifact of the chorion production process in females. Flea Egg Characteristics. Stock Images by Lauriebarr 2 / 753 Yellow color insect eggs on a white background Pictures by Berkay 0 / 0 insect eggs on a green leaf. The arrow in the photo above shows one micropyle within the micropylar region of Abedus herberti. Part I | Ask an Entomologist. Geometric patterns pop up everywhere in nature. Here's how to add your images. The eggs of some insect pests hatch within hours, which can make identification difficult. The insect developing inside the eggs require parental care and cannot survive without it in the wild (you can get them to hatch without the parents under certain laboratory conditions) and the exact locations of the structures on the eggs you’ll see here are different from many other insect species. If you need expert professional advice, contact your local extension office. Mar 5, 2014 - INSECTS EGGS | Garden Insect Eggs Pictures . Still others might have horns or other structures that allow them to respire more efficiently. Let’s start with a cluster of eggs: Some insects lay their eggs in clusters and others will lay them one by one and really spread them out. George Sims. Notice the area indicated by the arrow. Water bugs also usually have plastron networks that may be responsible for their survival while they are underwater. Female insects produce the eggs, but the chorion is deposited before the eggs are fertilized. Change ), You are commenting using your Google account. I HAVE BEEN WORKING ON THE EM STRUCTURE OF ODONATE EGGS SINCE LAST 20 YEARS +, AND HAVE DESCRIBED THE ULTRA STRUCTURE OF MANY LIBELLULIDS, A COUPLE OF AESHNIDS AND A GOMPHID OF INDIA.. But How? I too study something tangential to the morphology that I’ve done. It’s true, patterns are everywhere. We did feel compelled to get you a proper identification and we believe we have properly identified this as the Egg Mass of an Apple Snail in the genus Pomacea, and there are several invasive species.