Posts Tagged 'beetles'

Insects of the Weekend

IMG_6273A mess of these sand wasps (Bembicini) were trying to dig into the little beach along the Hudson by Ossining train station. Sand seemed too loose, though, for their nest chambers.harvestmanMoth Night at the Greenbelt Nature Center with the Staten Island Museum on Saturday meant more than moths. This harvestman (Opiliones) has little red mites attached to its legs. Orthosoma brunneumBrown Prionid beetle (Orthosoma brunneum), I think. About 1.25″ long.IMG_6329A camel cricket, family Rhaphidophoridae. Not one of the noise-makers, this tree cricket is a great jumper; we found several on trunks (I rotated this image; the cricket was facing down initially). Its antenna are nearly three times the body length.Epimecis hortariaIt’s National Moth Week, which may be something of a hard sell. Most moths, after all, are modest studies in gray. The showy ones, like the Luna, are few and far between, especially in the city. A white sheet with black lights was set up, as was a trough of “moth bait,” a gooey sludge of banana, booze, and brown sugar allowed to fester in the sun for a while. Both of these attract different species. The Tulip-tree Beauty (Epimecis hortaria) above didn’t come directly to either, but roosted in the area.Lomographia vestaliataWhite Spring Moth (Lomographia vestaliata).moth1Toothed Brown Carpet (Xanthorhoe lacustrata). There are some 12,000 know species of Lepidoptera in the U.S. & Canada; less than 800 of these are butterflies; the rest moths, and I guess they ran out of common names…

Green June in July

Cotinus nitidaI saw this flying fairly low and slow, and waited a while to see if it would land. Waiting may be the essence of natural history observation. As it flew, my thought process was thus: too small for a cicada, too wide for a wasp. Once it landed, Japanese Beetle came to mind; but although similar, this is larger, and lacks the grooved elytra and the tufty bristles of that pest. This turned out to be the Green June Beetle (Cotinus nitida). Another foot soldier in the empire of beetles, the true earthlings (the rest of us just live here, wantonly slaughtering everything that moves). The Latin nitida means shiny, bright, handsome. Cotinus nitidaSeveral days later, I found another in a different borough.

Brooklyn’s Two-Spotted Continue

Two years ago, I stumbled upon some unfamiliar ladybugs. There were Two-spotted (Adalia bipunctata), which turned out to be rather rare. It was the first Brooklyn report for the species. Last summer, the site was inaccessible to civilians because of construction. This weekend I took a look at the trees, as I usually do. They have been quite active with Multicolored Asian Ladybugs (Harmonia axyridis) for the last couple of weeks. But hello! Something different from the very round, very large (for a ladybug) H. axyridis, a nuisance species, if not worse, spread by gardeners and garden-suppliers. Indeed, many think the spread of these beetles has been the cause, or one of the causes, of the decline of the likes of A. bipunctata and other now rare native species. Adalia bipunctataBut the Two-spotted is still in town. Adalia bipunctataWhile trying to get a live photo, the beetle flew down to my camera lens, so I snapped this pic with my phone.

From the Lost Lady Project, I’ve learned that A. bipunctata has been reported at four New York State sites. Like many native species, it has been declining in numbers for the last twenty years or more. The location here is tiny, just a few trees, and isolated from other bits of green. It shows the importance of having a variety of trees and plants in as many places as possible. But this location is much busier with humans than it used to be…

Only three other places in New York! This isn’t to say there aren’t more places, which haven’t been discovered because there aren’t as many people looking for lady beetles as, say, there are people enabling FIFA’s looting, and/or staring at their toenails, but it does suggest their specialness. Adalia bipunctataSpeaking of nails. The Two-spotted comes in a variety of color forms. This one, found at the same time, is particularly striking.

Lady-like

Harmonia axyridisThe Catalpa trees — both the Northern Catalpa (C. bignonioides) and the Southern (C. speciosa) are found in the park — are ladybug magnets. The large heart-shaped leaves are often sticky, perhaps from the excretions of aphids, a favorite ladybug food. Right now, the nymph stages of the lady beetles, these small but frightful looking creatures, are out and about. This is one of the Multicolored Asian Ladybeetle (Harmonia axyridis). Here’s a passel of them in their pupal stage, transforming into adults under a Catalpa leaf:Harmonia axyridisMetamorphosis is so wonderfully strange (to this mammal, anyway): the nymphs, which are actually larger than the adult, will completely transform into the more familiar round red (and other colored) beetles, their bodies chemically broken down and reformed while they are inside the pupa.lb1An earlier instar of the all too-common MAL? (This one is on a milkweed.) Ladybug nymphs typically have four instars, or stages, which they molt through as they grow.

Once emerged, the adult beetle will harden, darken, and get spotted. Here’s another adult on a Catalpa leaf so sticky it’s glistening:Harmonia axyridisThe pale things are aphids.

Milkweed, Milkweed Beetles

milkweed

Locust Borers

Megacyllen robiniae…making more Locust Borers (Megacyllen robiniae). This wasp-like longhorn beetle feeds on goldenrod and lays its eggs on Black Locust (Robinia pseudoacacia) trees, into which the larvae bore…

Some Southwestern Insects

Aglais milbertiMilbert’s Tortoiseshell (Aglais milberti). I’ve only identified a couple of the following, so holler if you know any of them.
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Battus philenorPipevine Swallowtail (Battus philenor).i16i10This katydid was dropped in front of me by a surprised Western Tanager. I think the katydid was surprised too, if not in shock.i5Like the chimney-shaped ant colony entrance, this is another sign of an insect, in this case a gall-maker (evidently several species make willows produce these cone-like structures).

British Bugs

A selection of the insects spotted on my Dartmoor walk, most of which I can’t identify, so if you know ‘em, holler below in the comments.Calopteryx virgoThis one was easy to look up. (And be sure to click on the image to get a closer look at the wings.) There are only two damselfly species with colored wings over there. This is the (obviously) Beautiful Demoiselle (Calopteryx virgo), even though this is the male of the species. I found this one in Lustleigh’s small park.wingsSeveral days later I came across just the wings of this species at Dartmeet. I wonder what the story here was?Calopteryx splendensThis, seen also in Lustleigh, is the female Banded Damoiselle (Calopteryx splendens), the other colored-wing species.beetles2

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truebug

moth

Pyrrhosoma nymphulaLarge Red Damselflys (Pyrrhosoma nymphula), mating at the pond at Yarner Woods. Props to the British Dragonfly Society for ID help on the odes. Feel free to throw in your two pence worth of ID help for the rest of these. Vanessa atalantaBut you need no introduction to the circumpolar Red Admiral (Vanessa atalanta).combAnt working on some kind of comb, in the middle of the path.

High Gloss Lady

My “Year of the Ladybug” continues. Or, should I say, Year of the Aphids? Since it is the aphids, those little buggers, who have ushered in the ladies. This glossy creature is the Polished Lady Beetle, Cycloneda munda, a species new to me.Also known commonly as the Red Lady Beetle and the Immaculate — that is, spotless — Ladybug. There are three species of Cycloneda in North America, with C. munda being the one found here in the North East.
One of the larva stage C. mundas, no orisons here, with a crunchy aphid at the business end. Photographed yesterday, in a drizzly, foggy, damp, humid, clammy Brooklyn Bridge Park, where the polish on the adult beetle shone out like a lighthouse.

Brooklyn Bridge Park

It’s the middle of September, but Brooklyn Bridge Park is still hopping. And flitting. And flirting. And… but see below.

Noted yesterday, most often spotted first by my eagle, or should I say bug? -eyed companions:Gray Hairstreak, Strymon melinus, a small butterfly that looks like it could be going either way.Baby Gray Catbird, Dumetella carolinensis. A wasp-mimicking beetle. At over an inch long, this striking creature is the Locust Borer, Megacyllene robiniae. It’s one of the longhorn beetles; its larva bores into black locusts, while adults like this one eat goldenrod pollen. The beetle was made for this park with its black locust trees and goldenrod galore. Here’s a view of the striped underside:Meanwhile, the breeding season is most definitely not over:Bluet damselflies mating. The bright male clasps the female right behind the head. The female curves her abdomen around underneath herself to latch onto the second abdominal segment of the male, where he keeps his business (“anterior laminae”) for the ol’ genetic transfer.Larva of Large Milkweed Bug, Oncopeltus fasciatus. Adult:Not to be confused with the Small Milkweed Bug. The Large is a real aggregator:For those of you who love a good swarm.

And what all the fuss is about, milkweed seeds:Intrigued by what you see? Want to learn more? I will be leading a tour of the park’s “Birds, Bugs, and Bees” on September 29th. It’s free, but you need to do be a park volunteer to take part.


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