Showing posts with label Polyphemus Moth. Show all posts
Showing posts with label Polyphemus Moth. Show all posts

Friday, 16 July 2021

Some recent highlights of Newport Forest

 Newport Forest is ~45 ha (110 ac) along the south side of the Thames River, a bit downstream from Wardsville. It was always a mix of farmland and forest in its post-settlement days, with several creek systems meandering through on their way to the Thames. In 2000, it was on the market and Kee Dewdney and his wife Pat, acquired it for the purpose of retaining and restoring it closer to its natural environment. One of their goals was to document every living thing that could be found on the property and, with the help of others, have an amazing list of organisms.

A few years ago Kee and Pat transferred the title to the Thames Talbot Land Trust. The documentation of species and the overall management of this site continues. It is a private site with access only by permission. If you are interested in knowing more about the human and natural history of this site, as well as the Thames Talbot Land Trust, check out this link.

One of the things that highlights this site in spring is the impressive display of Virginia Bluebells. I have been there on several occasions to see the bluebells, and had featured this in an earlier blog post which you can check out here. 

 


I was invited there again this past July 4, but not to enjoy the bluebells. They were finished for the season weeks ago. The purpose this time was to document as many moth species as I could attract to my sheet. This would be the fifth time beginning in 2018 where I had set up one or more sheets in order to sample the moths. Since this coming week, from July 17-25, is National Moth Week, I thought it opportunistic to feature (mostly) some of the diversity of moths that I photographed that evening. With the breeding bird season winding down, although I really liked the image of the Acadian Flycatcher at the head of my blog for the past few weeks, I decided to change it to a very distinctive moth, the Spiny Oak-slug Moth, photographed at Newport.

The lights were on two different sheets, a few dozen metres apart and facing different directions. Due to the time of year, it wasn't really dark enough to put them on to any great effect until about 9:45 p.m. We had them on until about 12:15 a.m. Weather conditions are always a factor, and indeed we had to postpone our original night of a couple of weeks earlier due to the uncertain, and less than ideal, weather forecast. But on this night it was about as good as it can get: the temperature ranged from about 21-25C, there was high humidity and no wind. On top of that, there were no mosquitoes!

At the outset there were 6 of us to enjoy the show, but some had to leave a bit earlier than others, so they missed two of the larger moth highlights that came later to the party.

And so on with the show! In the ~2.5 hours that the lights were on, I managed to photograph over 100 species of moths. Given how fast and furious they were coming in at times, not to mention the fact that many are very small and could get easily missed with all the moth action, I strongly believe that there were likely a couple of dozen more that came and were not photographed. However, here are some of the most colourful or distinctive ones. They vary considerably in size, and you may be able to get a relative size of each of them based on the size of the weave of the sheet. Click on any photo to see it a bit larger.

Abbreviated Button Slug

American Lappet Moth

Aproned Cenopis
This next one is always a favourite to see. It gets its name, Banded Tussock Moth, due to the jagged bands going across its wings, as well as the shorter turquoise and pale yellow bands just behind its head.

Beautiful Sparganothis
There aren't any bogs nearby, but this next one is named the Bog Lygrophia.

Canadian Petrophila
An aquatic type of Crambid moth, this next one is the Chestnut-marked Pondweed Moth

Confused Eusarca
This next one is quite tiny. It is the Cream-edged Dichomeris.

Delicate Cycnia
Some don't have a widely known common name, as is the case for this next one. It just goes by its scientific name: Dichomeris ventrellus.
When you are walking through the grass and a small moth appears, flutters away and disappears beneath a blade of grass, it is likely a member of the Grass-veneer group. This next one is the Double-banded Grass-veneer.

Feeble Grass Moth

Forest Tent Caterpillar

Green Leuconycta
One of the highlights for any moth-er is to encounter one of the Underwing group, which often have brightly coloured hind wings that really get your attention when they are in flight. This next one is a Hawthorn Underwing, giving a glimpse of its orange and black hind, or under, wing.

Hickory Stem Borer
Identifying moths can be enormously challenging, even when there is a good field guide available. The colours and patterns are based on the tiny scales on the wings, which show wear and tear all too soon. And some species, like this next one, normally has quite a variety of colours and patterns even when it is fresh. These next three images are all of the same species, known as the Large Lace-border Moth,


At times there was quite a conglomeration of moths on the sheets, even in close proximity to each other. This next photo shows one example, and includes four of the species already featured above. Can you name them all?


Large Maple Spanworm

Lesser Maple Spanworm

Lobed Plume Moth

Mint-loving Pyrausta
This next one is extremely tiny, at  merely 4-5 mm. In fact if it hadn't been for the dark patch in the middle of its closed wings, I could easily have missed it altogether on the white sheet. It is a member of the White Eye-capped Moth group. I haven not been able to come up with a species name yet.

Pink-barred Pseudeustrotia

Red-fringed Emerald
Just before midnight, when the last two of our original group of six were thinking about packing it in, this large silk moth came fluttering in. It refused to land on the sheet, but kept fluttering along the ground, even bumping into us and then disappearing for a few moments. I got one quick shot when it lay on the ground for a couple of seconds.
Eventually it returned and decided to hang up under one of the wooden benches close by. It is a Polyphemus Moth, with an open wingspan of 100-150 mm.

Over my mothing time, I have photographed about 700 species. But considering there are over 3300 species in Ontario, there is a strong likelihood of finding a new one on any given outing, and this next one is an example of that. It is called the Sharp-lined Yellow.

Straight-lined Plagodis
The moths don't always come to the sheet. Sometimes they alight on something nearby, such as the Polyphemus Moth did. Or in the case of this next one, it landed at the edge of the wheel-well of my vehicle.
The Saw-wing

Three-patched Bigwing
Names are quite intriguing, but not surprising since there are over 3300 species in Ontario alone, and believed to be over 160,000 species in the world. It must be hard to come up with meaningful names at times. I'm not sure what this next one did to deserve its name, the 'Ugly-nest Caterpillar Moth'.

Walnut Caterpillar
Just as we were packing up things, this next moth came to one of the sheets. Like the Polyphemus Moth, it fluttered and bounced around, getting caught in the grass at times, but we waited it out. It eventually came to rest on the sheet, so naturally we were able to get some photos. This is a Walnut Sphinx.

There are lots of critters that come to the lights besides moths, but moths were our main focus. However here are a couple of other things that caught our attention. This first one is a member of the Tabanid group, those biting deer flies that can be so annoying on hot sunny days. This one was content just to rest on the sheet....

...as was this large Reddish-brown Stag Beetle. It arrived shortly after we put the lights on, and remained for the entire time. In fact it was hard to get it to release its grip when we took the sheet down, but it was better left at Newport rather than taking it home.

We hope to have another moth night, perhaps in August at a time which we have not sampled before.


Additional note: Please be advised that if you are a subscriber to this blog, the blog site has indicated that sometime after July it will no longer be providing automatic email notices of when this blog is published. I will try and get a subscriber's list assembled and let you know, but in the meantime, if you would like to be advised of the publication of future posts of Nature Nuggets, let me know via this email: prairietramper@gmail.com.

The blog post appears to still have the email subscription function. The blog feeder has just indicated that it will discontinue after July.






 

Thursday, 19 November 2020

Creatures That Saw The Light, Part I....

 ...and came to check it out! Of course I am talking about black lighting, mainly for moths, but also for whatever creatures of the night are drawn to the brightly lit white sheet. It is always amazing how these interesting critters respond to the wavelengths of light that are not as well seen by humans. Just another fascinating aspect of nature!

Moore Wildlife Area is a fascinating area more or less in central Lambton County, owned/managed by the St. Clair Region Conservation Authority. I had the privilege of setting up my black lights there on three different occasions this year. A couple of times were just from the parking lot, but that is pretty good in itself. In fact I found the first Canadian record of a moth there last year, right at the parking lot. 

With the Sydenham River traversing this wildlife area, and this river is well known for rare aquatic species, I did set up on one occasion right along the edge of the river, which included an overlook of the river and had good visibility to the woodland as well. I came across, and photographed, well over 100 species of moths, as well as a variety of non-moth species. Some moths were rather worn and difficult to identify, so the totals may increase as people much more expert than I am, eventually identify them on iNaturalist or Bugguide. At any rate, what follows is a few of some of the more colourful or patterned moths. They are shown in alphabetical order based on their common name.

I thought this first one, an American Idia, was really nicely patterned and showed well on the piece of wood that it came to visit nearby. Not all moths land on the white sheet, but may land on a nearby tree or even on the ground or grass.


Arcigera Flower Moth

Close-banded Yellowhorn

On the evening I set up by the river, the midges were quite abundant. It was sometimes hard to get a photo of a moth, such as this Common Lytrosis, without being deluged with midges!


Common Spring Moth
This next one is probably a Crocus Geometer. There is another one in that complex that is sometimes difficult to separate, and some moth-ers lump them together. But I think this one is pretty colourful and relatively distinctive with this pattern.
I always like seeing this next one come in to the light. It is delicate, as its name states, and the golden yellow edge to the wing and the head is quite attractive.
Delicate Cycnia

Dimorphic Macalla Moth

Fervid Plagodis

Green Leuconycta

Gray Marvel
You have likely all seen those Woolly Bear caterpillars crawling around late in the season. Well if they survive and turn into adults, this is what they will look like, and are known as the Isabella Tiger Moth.

Julia's Dicymolomia

Lappet Moth

Large Maple Spanworm

Least-marked Euchlaena

Little Virgin Tiger Moth
This next one is very small, as you can see by the nymphal form of the midges in close proximity. It is the Metallic Casebearer.

Oak Leaf Shredder

Pearly Everlasting

Pink-barred Pseudostrotia
The Silk Moths always garner attention, and are a highlight to have come in to the light. This one did come in to the light, but eventually landed on the grass, and then for the longest time, clung to the bottom of a nearby tree. It is a Polyphemus Moth, and one of the largest of the large silk moth group with a wing span of up to 15 cm (6").

Red-fringed Emerald
The Papaipema genus is fascinating, and fun to try and figure out. It was a member of this genus that I photographed in 2019, that turned out to be the first record for Canada. The one shown next is more distinctly marked, and is known as the Rigid Sunflower Borer.

Sparganothis Fruitworm Moth

White-spotted Leafroller Moth

As mentioned, there are always a few non-moth creatures that come to the white sheet. Here are a few. Some are really small, like this first one, the Citrus Flatid Planthopper.

The occasional Deer Fly, shown next, stopped in, but they don't seem to be interested in biting after dark.

Fire-coloured Beetle
There were several leafhoppers on most nights, and they are all small, with some only about 5 mm in total length. This one doesn't have a common name, but is called Ponana quadralaba.

Northern Flatid Planthopper
This next one is known as Say's Mantidfly. It is considered fairly rare in Ontario. I have had them come to lights at several locations.
Not sure who comes up with names. This next one is the Two-spotted Slope-rumped Beetle.

Two-striped Planthopper
A peculiar looking beetle is this next one, a weevil in the Curculio genus. The very long snout is used to penetrate things like acorns.