Posts Tagged 'insects'

Future Odes

Perithemis teneraEastern Amberwings (Perithemis tenera) in the reproductive wheel: the male holds the female by the back of the head; the female curves her abdomen up and forwards his genitalia, located (counterintuitively?) at the base of his abdomen. Pachydiplax longipennisA female Blue Dasher (Pachydiplax longipennis) dipping her abdomen down to lay fertilized eggs in a bit of water floating on a lily. Enallagma civileIn some species of Odonates, the male will continue to hold the female after mating and through the egg-laying process, precluding another male from mating with her, as with these Familiar Bluets (Enallagma civile). They can fly in tandem like this. Some species’ males will scoop out a previous male’s sperm from the female before adding his own with his specially equipped penis.Pachydiplax longipennisBlue Dasher females don’t seem to need chaperones. And look at all the eggs! Like pieces of short-grain rice, but much smaller. Of course, you know many will not make it to adulthood. These eggs were another post-photo discovery.

Orange Is the New Bluet

Enallagma signatumA male Orange Bluet (Enallagma signatum) in the afternoon sun.

Venation

Libellula vibransMale Great Blue Skimmer (Libellula vibrans).Plathemis lydiaCommon Whitetail (Plathemis lydia) male.Libellula pulchellaForewings of female Twelve-spotted Skimmer (Libellula pulchella). I found this with a little bit of thorax exoskeleton a few blocks from home. Extremely lightweight, and prone to blowing away in a weak breeze.Libellula pulchellaSome magnification. Tramea lacerataBlack Saddlebags (Tramea lacerata) female. Hindwings are especially wide on this species.

Eastern Forktail

Ischnura verticalisA male Eastern Forktail (Ischnura verticalis) showing off the characteristic and unique solid green shoulder markings and blue on segments 8 and 9. An inch long; you really have to get close to see the jewel-llike details. And, oh, look, an exuvia I didn’t even notice in the background when I took this picture.

Fragile Forktails

Ischnura positaA mature female Ischnura posita. Ischnura positaAn immature female. Inch-long damsels, these. Eat more mosquitos, ladies!

Ischnura positaA mature male. The exclamation mark on the shoulder is tell-tale for this species, but it can fade with age.

Hanging the Night

Libellula pulchellaThis Twelve-spotted Skimmer (Libellula pulchella) was parked just off the path around 730pm, so I think it was roosting for the night. The black markings looked velvety in the light.Libellula pulchellaThis is a mature male. If you counted the white spots, too, he would be a twenty-spotted skimmer. To matters more confusing, this species used to be known as the Ten-spot… can you guess why?

USDA Prime

Harmonia axyridisNot only does the Multicolored Asian Ladybeetle (Harmonia axyridis) come in multiple colors, they’re also found with a variable number of spots. Or none at all. That’s me in the reflection of those high-gloss elytra.

(Post title refers to the first release of the species in the U.S., which was done by the USDA. Subsequent releases may have been accidental.)


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