Showing posts with label Comma. Show all posts
Showing posts with label Comma. Show all posts

Tuesday, 23 July 2013

Summery wildlife garden

A walk around the lush meadows of the wildlife garden yielded a number of invertebrate sightings. The day flying Six Spot Burnet moths, with their bright red-pink and dark metallic wings feasted on the knapweed (above).
A Meadow Brown feeds on the abundant oregano.
I caught a Small Skipper and a Six spot burnet on knapweed.
These are two shots of Small Skippers, one of my favourite butterflies. The way they carry their wings, held at different angles, instead of pressed together like other butterflies, is quite characteristic.

On the grass, there were many nursery webs of the nursery web spider Pisaura mirabilis. With a bit of patience, the guarding females could be spotted on or under the tents. She guards the eggs, and then the spiderlings which hatch inside the nursery web and remain in it for a few days.
A female Pisaura mirabilis.
My first summer generation Comma Butterfly.
And the first Gatekeepers. These two weren't wasting any time and were mating
Male Gatekeeper.
A Ringlet sat atop a ragwort inflorescence. Once I got closer, I realised the butterfly was dead, prey for a spider that often builds its web under flowers, Enophlognatha ovata.
This large hoverfly is one of my favourites, Chrysotoxum festivum. I often see a male hovering over the pond in the wildlife garden.
I took this shot on the 9th of July this year of the hovering male.
And in the oregano, a cuckoo bumblebee, Bombus ruderarius rupestris which parasitizes the similar looking Bombus lapidarius.

Sunday, 7 October 2012

Loving the ivy

The late flowers of the ivy are a bug magnet in the autumn, when other sources of nectar are scarce. I have posted before on ivy fest season, but today I came across some new ivy visitors in a large ivy just starting to bloom in my local cemetery. Speckled Wood butterflies rarely visit flowers, as they usually feed on honeydew produced by aphids up in trees. So, I was pleasantly surprised to see two individuals feeding on ivy together with a Comma and many Droneflies.
Speckled Wood and Comma
Comma
Dronefly Eristalis tenax
Male wasp
Helophilus
Yellow dung fly?

Saturday, 15 September 2012

A stop for a comma

Before today, I had only seen a Comma butterfly, Polygonia c-album, this year, but today I saw four. Two of them nectared on a large flowering ivy. This fresh individual sat on a rowan leaf and groomed its tongue after feeding on a budlleia in my garden. Although the bright orange upperside of the Comma is striking, I love the mimetic, subtle tones of its underwings. Their dark brown tones and the scalloped edges make them resemble a withered leaf, and there is a strong contrast with their white legs and the neat C on its hindwing. This one offered a wonderful photo opportunity with with ripe rowan berries as a background.

Sunday, 12 September 2010

September bugs

There is a definite autumnal feel these days. Shorter days, ripening berries and leaves already changing colour. September, however, is a month plentiful on all sorts of bugs. During a walk in our local Millennium Wood, Oppy Wood today, we spotted five butterfly species, Comma, Speckled Wood, Small Tortoiseshell, Red Admiral and Large White. We watched Commas and Speckled Woods sucking the sweet juice of ripe Blackberries.


There were plenty of Daddy Long Legs (tipulidae). Some of them mating.
A couple of Migrant Hawkers patrolled above our heads. A male (top) eventually stopped to rest, hanging from some low branches. He let me get really close to him for some shots.
There also were grasshoppers about - possibly Lesser Marsh Grasshopper, Chorthipphus albomarginatus - 7 spot ladybirds, froghoppers and wolf spiders.
A male Lesser Marsh Grasshopper

Thursday, 23 October 2008

City butterflies: the Comma

11 September 2006, comma basking on clematis
I have recorded 18 species of butterflies since 2003 in the city of Hull. Four of these I see occasionally, or I have seen just once (White Letter Hairstreak, Brimstone, Orange Tip or Small Copper), species that are more at ease in the countryside. This leaves 14 species that are common enough in the city streets, parks and gardens. One of the most obvious October butterflies is the Comma, Polygonia c-album. This species is recognized by their bright orange background with dark marks and an unique ragged edge-looking wings. Its underside is quite dark in the overwintering generation, with a clear white 'c' in the hind wing: once it closes its wings, it looks like a withered old leaf. Its legs have elegant white stockings. I find the comma difficult to tell apart in flight from the Small Tortoiseshell.
10th October 2008, Comma basking on apple tree
 There are not many sources of nectar around in October; I have recorded commas feeding on Ivy, Buddleia and Cherry Laurel this autumn. In her treasure trove Butterfly Garden webpage, the late Linda Walls also cites Verbena, which flowers in October. The butterflies around this month are the overintering generation. They still fly on sunny days on the look out for nectar sources in preparation for winter. Although the odd individual interrupts overwintering on sunny winter days, they should wake up again at the end of March, ready to mate and lay their eggs.
25th September 2008, Comma feeding on cherry laurel 
The photos above show individuals from the overwintering generation. The one below is the only one I've got from a summer generation ('hutchinsoni'), taken on 8/07/07. Note that its underwings are much paler than the overwintering form.

The following graph shows my sightings for a OS grid square in Hull. it shows the butterfly overwinters from October to late March - frost season here - and the hibernating generation mates and dies off during april. No adults are seen in May and June, but the 'hutchinsoni' or summer generation emerges lays eggs and dies off in July. Finally, September sees a new generation of commas, which are non-reproducing and will overwinter.


Wednesday, 24 September 2008

Ivy fest!

The end of September is the time of the year when I like to visit an old ivy growing on a south-facing brick wall. Today was the first day I saw it flowering for good. Ivy (Hedera helix) is an unusual plant in that its flowering season starts with the beginning of autumn. Given the scarcity of alternative sources or nectar at a this crucial time of the year - when many insects are getting ready for winter dormancy, egg laying or migration, this marks a food bonanza for many insects, the final feast of the year. Drone flies (Eristalis) and green and bluebottles, hover-flies, wasps, honey bees, queen bumblebees, butterflies (Red Admirals, Small Tortoishells, Painted Ladies, Large and Small Whites, Commas) buzz on the green-yellow ivy flowers.
Myathropa florea
Helophilus pendulus

Syrphus sp.

Bluebottle, Calliphora vomitoria
Eristalis tenax
Above, an illustration of the diversity of hoverflies who use Ivy

Red Admiral
Comma
And all them must keep watch for garden spiders, who never say no to a juicy hover-fly...
By the beginning of December the Ivy flowers are gone and the berries start to grow.
 This is one of the last ivy blooms of the year, with a late red admiral (photo taken 30/10/2006):