Description


A diary of my mothing activity covering highlights and photos from my moth trapping activities. Mainly Norfolk (UK), occasionally beyond. I may mention other wildlife sightings here, especially insects, but for birds see my birding diary.
Showing posts with label Chrysoperla lucasina. Show all posts
Showing posts with label Chrysoperla lucasina. Show all posts

Monday, 12 April 2021

Review of 2019 and 2020 - Green Lacewings (Chrysopidae) part 1: Chrysopa to Nineta

GREEN LACEWINGS (CHRYSOPIDAE)


Chrysopa commata - 8 in my garden moth trap between 29th May and 4th August 2019 but just one here in 2020, 14th August.  The species has been annual over the last 5 years and I recorded 8 in 2018 too.  Also one at the meadows on 3rd June 2020.

Chrysopa commata, North Elmham, 29th May 2019


Chrysopa commata, North Elmham Cathedral Meadows, 3rd June 2020



Chrysopa pallens - None.  I've not yet encountered this species but although its not commonly recorded there are enough records in Norfolk to think it feasible that one might turn up here.


Chrysopa perla - Found at the meadows on 27th May and 3rd and 20th June 2020.  None in 2019 and none in the garden where I have only recorded one before, in 2018.  I'd had 2 at the meadows in 2018 too - this species seems to avoid gardens, or possibly it's just that it doesn't come to light (and that's the main way I find things in my garden) - I don't think any of these 3 records were coming to light.

Chrysopa perla, North Elmham Cathedral Meadows, 27th May 2020


Chrysopa perla, North Elmham Cathedral Meadows, 3rd June 2020


Chrysopa perla, North Elmham Cathedral Meadows, 27th June 2020



Chrysoperla carnea - I check every male for Chrysoperla pallida, a very similar species that has not yet been recorded in Norfolk, but females of the two species cannot be separated.  The following records include both confirmed males and aggregate females on the basis that in the absence of any male pallida (here or anywhere in Norfolk), the number of any female pallida that might have crept in must be so small as to not skew the data.  I recorded a total of 74 here in 2019 and 98 in 2020, the vast majority of which were in my garden moth trap, with records in every month apart from January in 2019, but only April and June to November in 2020.  Peak counts of 7 on 25th July 2019 and 11 on 4th July 2020.  These compare to totals of 112 in 2018 with a peak count of 28 (in October) and 84 in 2017 (peak 13).  Elsewhere I recorded 17 at the meadows and one at Swanton Great Wood.

male Chrysoperla carnea, North Elmham Cathedral Meadows, 21st April 2019


male Chrysoperla carnea, North Elmham Cathedral Meadows, 21st May 2019


female Chrysoperla carnea agg. larva, North Elmham Cathedral Meadows, 20th June 2020 (bred through)


male Chrysoperla carnea, North Elmham Cathedral Meadows, 23rd June 2020



2 male Chrysoperla carnea, North Elmham, 24th June 2020


The following chart shows the distribution of my records of this species here in North Elmham between 2016 and 2020:




Chrysoperla lucasina - One in the garden moth trap on 23rd May 2020, my first since 2017 when I caught 3 here.  I sometimes worry that I might be overlooking this species among carnea as it's meant to be pretty common, but I do look out for them.  I have a few times picked out examples that appeared to be candidates for this species and then decided that they weren't in the end, which also made me wonder whether I'd identified the 2017 records correctly but looking back at my photos I think they're clear enough - clearer in fact than this one from 2020.

Chrysoperla lucasina, North Elmham, 23rd May 2020



Chrysopidia ciliata - None at home in 2019 or 2020 despite having had one in the garden trap in each of the previous 3 years (and 1-2 elsewhere each year).  Elsewhere one at the meadows on 26th June 2020 and one at Bintree Wood on 24th July 2020.


Chrysopidia ciliata, North Elmham Cathedral Meadows, 26th June 2020


Chrysopidia ciliata, Bintree Wood, 24th July 2020



Cunctochrysa albolineata - A fantastic year followed by a rubbish year!  A stark difference between my totals of 110 caught in my garden moth trap between 23rd June and 22nd August 2019 (making it my commonest lacewing in 2019) and just 7 here between 26th June and 22nd September 2020 (the last being the latest date I've recorded this species).  Peak counts in 2019 were 31 on 23rd July and 34 on 25th July but the species was recorded on 23 nights.  2019 was exceptional, with 21 being my previous best total (in 2017) but 2020 was worse than usual.  Elsewhere one next door and 5 at the meadows (plus a possible larva, see below).

Cunctochrysa albolineata, North Elmham Cathedral Meadows, 23rd June 2019


Cunctochrysa albolineata, North Elmham, 22nd September 2020


The following chart shows the distribution of my records of this species to date:



It's hard to find decent references to lacewing larvae and the ones I've seen are quite limited.  I think this larva found at the meadows on 3rd September 2019 is probably this species but I am not 100% certain.

possible Cunctochrysa albolineata, North Elmham Cathedral Meadows, 3rd September 2019



Dichochrysa flavifros - A total of 55 caught in my garden moth trap between 23rd June and 23rd October 2019 making it my best year so far (though only just ahead of 54 in 2017).  As with the last species 2020 wasn't nearly so good with just 10 between 5th July and 22nd August.  Peak counts in 2019 were 10 on 23rd July and 16 on 25th July.  None recorded elsewhere in 2019 but one at the meadows on 18th June 2020.

Dichochrysa flavifrons, North Elmham, 23rd Ocotber 2019


Dichochrysa flavifrons, North Elmham Cathedral Meadows, 18th June 2020


The following chart shows the distribution of my records of this species to date, a similar shape to the previous species:




Dichochrysa prasina - Totals of 10 caught in my garden moth trap between 29th June and 9th August 2019 and 6 between 3rd July and 10th August 2020.  The peak count of 3 on the 25th July 2019 was on the same day as the peak count of the previous two species but although 2019 was my best year to date for this species the difference between 2019 and other years wasn't so great.

Dichochrysa prasina, North Elmham, 19th July 2019


Dichochrysa prasina, North Elmham, 3rd July 2020



Dichochrysa ventralis - Singles caught in my garden moth trap on 19th and 25th July 2019 and 26th June and 31st July 2020.  I've recorded this species here in each year since 2016 but never more than twice.  Also one at Bintree Wood on 26th June 2020.


Dichochrysa ventralis, North Elmham, 19th July 2019 (the second photo taken through a glass pot in order to show its distinctive underside)



Dichochrysa ventralis, North Elmham, 26th June 2020


Dichochrysa ventralis, North Elmham, 31st July 2020



Nineta flava - None.  I think this must be one of the commonest lacewings that I'm yet to find.


Nineta vittata - Singles caught in my garden moth trap on 23rd July 2019 and 21st August 2020.  I've recorded this relatively large species here in each year since 2016 but with a total of only 8.  I'm yet to find any anywhere else.

Nineta vittata, North Elmham, 23rd July 2019



Nineta vittata, North Elmham, 21st August 2020 (with Chrysoperla carnea on the right in the second photo to show size comparison)


Next page: more Chrysopidae (the best ones!)

Sunday, 29 October 2017

Harlequin invasion and Vapourer

A walk at Massingham Heath on 2nd October didn't produce much wildlife interest - a Common Nettle-tap Anthophila fabriciana was the only moth recorded.  A poor catch at home that night consisted of Narrow-winged Grey Eudonia angustea, Setaceous Hebrew Character, Black Rustic, Red-line Quaker, Lunar Underwing, Sallow and Rosy Rustic.

The following night Large Wainscot was new for the year.  Apart from that it was no better than the night before: Light Brown Apple Moth Epiphyas postvittana, Feathered Thorn, Setaceous Hebrew Character, Green-brindled Crescent and 2 Lunar Underwings.

Large Wainscot, North Elmham, 3rd October


The next few nights didn't get much better:
  • 4th: Setaceous Hebrew Character, Lunar Underwing, Pink-barred Sallow, 2 Large Wainscots and the caddisfly Limnephilus lunatus
  • 5th: just single Lunar Underwing and Pink-barred Sallow.
  • 6th: Garden Midget Phyllonorycter messaniella, Rhomboid Tortrix Acleris rhombana, Narrow-winged Grey Eudonia angustea, Lunar Underwing and Limnephilus lunatus.
  • 7th: Light Brown Apple Moth Epiphyas postvittana, 3 Narrow-winged Greys Eudonia angustea, Common Marbled Carpet, Feathered Thorn, Lunar Underwing, Snout and the beetles Nicrophorus investigator and 2 Leistus spinibarbis.

At Cley on 7th this caterpillar was on the boardwalk to the central hides.  I wasn't sure what it was, even if it is a moth or sawfly.  Turns out it wasn't either - thanks to James again for letting me know it's a soldier beetle larva -  I'd never have guessed that!

soldier beetle larva, Cley, 7th October


There was a slight upturn on the night of Sunday 8th with a Spruce Carpet and my latest ever (first in October) Treble Brown Spot.  Not much else though: 3 Light Brown Apple Moths Epiphyas postvittana, Garden Rose Tortrix Acleris variegana, 2 Narrow-winged Greys Eudonia angustea, 2 Mallows, Common Marbled Carpet, 3 Lunar Underwings, Pink-barred Sallow and Snout.

A Harbour Porpoise was about the only non-avian interest at Burnham Overy on 9th October.  That night at home I caught 3 Light Brown Apple Moths Epiphyas postvittana, 3 Garden Rose Tortrixes Acleris variegana, 2 Narrow-winged Greys Eudonia angustea, 2 Mallows, Common Marbled Carpet, Shuttle-shaped Dart, 2 Lunar Underwings, Pink-barred Sallow, Straw Dot, Chrysoperla carnea agg. (lacewing) and 3 Limnephilus lunatus (caddis).

The conditions around lunchtime on Tuesday 10th October must have been just right for ladybirds to be looking for somewhere to hibernate as between about 1 pm and 2 pm at least 36 Harlequin Ladybirds entered my study through the window which was only open a crack.  There were loads more outside that didn't find their way in too.  Among them all was a single 2-spot Ladybird, the first I've recorded here this year (though I'm pretty sure one that came in to hibernate towards the end of last year was still lurking in a corner into January at least).

That night there were 2 new moths for the year - one a lovely species I've only caught here once before and the other a very common and rather less attractive species - Vapourer and November Moth.



Vapourer, North Elmham, 10th October


November Moth (male, 8th sternite checked), North Elmham, 10th October


Other moths that night were 2 Light Brown Apple Moths Epiphyas postvittana, 6 Narrow-winged Greys Eudonia angustea, Mallow, Common Marbled Carpet, Feathered Thorn, Shuttle-shaped Dart, Large Yellow Underwing, 2 Setaceous Hebrew Characters, 2 Green-brindled Crescents, Lunar Underwing, Straw Dot and Snout.  Other insects included Chrysoperla carnea (lacewing), Limnephilus flavicornis, Limnephilus lunatus, 2 Limnephilus vittatus (caddisflies) and Lamprotettix nitidulus (leafhopper).

The following night there were 5 Narrow-winged Greys Eudonia angustea, Mallow, November Moth, Feathered Thorn, Beaded Chestnut, 2 Lunar Underwings and Barred Sallow, the last of which was new for the year.  No caddisflies, lacewings, bugs or beetles.

Barred Sallow, North Elmham, 11th October


It was just as quiet the next evening but still one new for the year - Yellow-line Quaker.  The others were 6 Narrow-winged Greys Eudonia angustea, Feathered Thorn, 2 Green-brindled Crescents, Lunar Underwing, Limnephilus lunatus, 2 Halesus radiatus (caddisflies) and Harpalus rufipes (beetle).

Yellow-line Quaker, North Elmham, 12th October


A Firethorn Leaf-miner Phyllonorycter leucographella was new for the year on 13th October.

Firethorn Leaf-miner Phyllonorycter leucographella, North Elmham, 13th October


This was one of a surprisingly good haul of micro moths which included several species I hadn't seen since the summer. Yellow-spot Tortrix Pseudargyrotoza conwagana is one I'd not seen anywhere near this late before and as it was fresh it must have been an unusual second-generation.  I had seen late Long-horned Flat-body Carcina quercana before but it's another one that the textbooks say should stop flying in August. Gold Triangle Hypsopygia costalis is another one that must be starting to have a second generation - this was my first in October while the Double-striped Tabby Hypsopygia glaucinalis is a bit more established at this time of year.  The other micros were more expected: 4 Garden Midgets Phyllonorycter messaniella, 2 Garden Rose Tortrixes Acleris variegana, 3 Narrow-winged Greys Eudonia angustea and Common Plume Emmelina monodactyla.

Yellow-spot Tortrix Pseudargyrotoza conwagana, North Elmham, 13th October


Long-horned Flat-body Carcina quercana, North Elmham, 13th October


Bizarrely given the nunber of micros, macros were few and far between and every one of them was a noctuid (at least in old taxonomy).  At least with just singles of each it felt like there was some variety among them: Shuttle-shaped Dart, Black Rustic, Brown-spot Pinion, Beaded Chestnut, Barred Sallow, Large Wainscot, Burnished Brass, Straw Dot and Snout.

Beaded Chestnut, North Elmham, 13th October


There was some interest among the other insects too.  Two lacewings were both Chrysoperla but unusually only one was carnea, the other being Chrysoperla lucasina - just my third.  There weren't many caddisflies but they included my first ever Brown Sedges Anabolia nervosa, a male and a female, along with more usual Mottled Sedge Glyphotaelius pellucidus and Limnephilus vittatus.

Chrysoperla lucasina, North Elmham, 13th October


Brown Sedge Anabolia nervosa (male), North Elmham, 13th October


Bugs and beetles consisted of Pinalitus cervinus, 2 Kybos sp. (probably betulicola), Edwardsiana sp., Aphodius rufipes and Orange Ladybird.




Orange Ladybird, North Elmham, 13th October