Tag Archives: ovipositing eggs

Dance of the Halloween Dragonfly

It’s not always the case that a wild creature’s name befits its appearance but I think whoever gave the Halloween Pennant its common name was spot on. The male is the darker orange dragonfly, on top.

Mating Behavior and Oviposition

The mating behavior of Halloween Pennants is similar to that of other dragonfly species. The male will use his cerci (paired appendages on the rear segments) to grasp the female behind her head so that they are hooked together. The female will then curl her abdomen forward so that her genital opening comes into contact with the male genitalia, which are located closer to the male’s thorax than to the tip of the abdomen (Cordero-Rivera and Córdoba-Aguilar 2010). This is known as the wheel formation, as the dragonfly bodies form a closed circle. In a study done in south Florida, Celithemis eponina were observed mating only between 8:00 and 10:30 AM (Miller 1982; Dunkle 1989).

After copulation, the female lays eggs in water, while the male remains with the tip of the male’s abdomen attached to the female’s head (Taber 2005).

Internet Archive Royalty Free Music: Jena-Pierre Rampal, Francoise Bonnet Fantaisie brillante sur des thèmes de l’opéra “Carmen” de Bizet – ℗ 1965

Halloween Pennant Dragonflies Mating image courtesy wiki commons media from the Herrick Lake Forest Reserve

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Mama Monarchs!

Have you noticed how lush our gardens are this year? Perhaps it’s because we never had a sudden deep, deep freeze this past winter but whatever the reason, the blossoms and growth of flowering and fruiting trees, hydrangeas, roses, lilacs, milkweed, and butterfly bushes (to name a few) haven’t looked this grand in a number of years. And our wildflower meadows are also simply spectacular with blossoms. For the past month while looking after the Plovers, we have been delighted with the rich honey-hay smell wafting down to the beach from the Common Milkweed blooming widely across the dunes.

We’ve had a bunch of Mama Monarchs flitting through our milkweed patches and ovipositing a treasure trove of golden drops over the past several weeks. She gently curls her abdomen, ovipositing one egg at a time, while simultaneously, each egg attaches with a quick drying sticky glue. I was showing a friend how to look for the eggs and she was amazed at how teeny they are. Only about the size of a pinhead, we most often find them on the tender new growth emerging in the center of the plant or on the leaves more towards the top of the plant. Wild Monarchs deposit one egg at a time. You can see in the pairs of photos the egg she deposited after carefully inspecting each leaf.

Monarchs held in captivity in breeding cages and tents are observed dumping quantities of eggs in large clusters (not one at a time) on milkweed plants as they are not free to travel around to investigate foliage. This is one reason why Monarch diseases are on the rise. Captive reared Lepidoptera also diminish genetic diversity, weakening a species. If you would like to raise Monarchs, it is highly recommended by organizations such as Monarch Watch and The Xerces Society to raise in small batches, only ten or so at a time, from eggs collected in your garden, not purchased over the internet and from butterfly farms.