Monday, 27 April 2020

40 Flies

I had a day off work today and, despite it being sunny, it was blooming chilly in the NE wind. However, the Swallows are back and the Common Sandpipers are calling so it must be springtime. Actually, I even heard a lamb yesterday, thinking about it.

I took a quick wander along the track through Uig Wood, lots of flowers and a bit of blossom starting to show at last. I did spy a handful of small flies tucked deep inside Dandelion heads, but it was too breezy and cold to bother swiping around with the net. Happily, I did spy one fly that was well worth stopping to admire


Male Tipula vittata sunning itself on a dock leaf

I was pretty sure I knew the species, but vaguely remembered that there is a lookalike species, so I jammed it into my largest pot and took it back for a closer inspection. 


It's a very smart beast!
Easy to see why they call this family the Long-palped Craneflies!

The confusion species with Tipula vittata is Tipula lateralis, which I now realise is a far smaller insect. It has a somewhat similar pattern to the wingtip, though less well-marked and not as extensive. Below is the wing membrane of today's Tipula vittata, firstly against a pale background and then against a darker background to highlight the dark and pale markings



Tipula vittata - note the pale markings which extend to the wingtip itself

And this is the wing membrane of Tipula lateralis, from a specimen I collected here in May 2019

Similar, but the pale markings only head downwards and not across the wingtip

But the most obvious difference, when placed side by side, is the larger size of vittata (left) compared with lateralis (right)




So that's one more species added to The Grand Fly and Beetle Challenge and it just so happens to be my 40th species of fly for the year. That's not very many, considering it is almost May, but things have yet to really start emerging up here. The weather has been brilliant for much of the past week, but it's gone cold again now thanks to that northerly wind. I have tomorrow off work too, I may swipe that net a bit more and see if I can't find a few more identifiable flies for the tally. Last night The Ghost began taunting me: 

Been doing flies today, starting to hunt you down....

I don't know why he always has to talk in italics, he's just a bit weird like that. 

Anyway, I reckon I have at least twenty more fly species in the Backlog Box that I can identify, plus there's a whole shedload that are beyond my current capabilities (lack of magnification and keys being the main issues), hence need specialist attention. Stuff like the Sciaridae, Mycetophilidae, Ceratopogonidae, Chironomidae (those are all nematocerans) and there's a small but growing haul of Sphaeroceridae too.  

Roll on number 50 and then it'll be a race to see who hits 100 first! Of course, I'm completely whupping his arse when it comes to the beetles. As the lyrics say I WANT MORE!!!! 




Edit - The Ghost has now seen this post and responded accordingly:

I've gone from 20-something to 36 in the last 24 hours and I've only done the syrphids I had awaiting attention. You're going down...

Now I don't know about you guys, but I call that Fighting Talk. That Backlog Box is getting hammered tonight! 

8 comments:

  1. Still feel that Ribbons is the only song on this album that really stands up to the test of time (also maybe Something fast). I've been backing slowly away from the flies (hovers don't count) but there a few in a store box awaiting a tentative name. How's that beetle list coming on?

    ReplyDelete
    Replies
    1. Beetles are coming along kinda slowly. Well, actually they're coming in too fast seeing as I get dozens from every grass heap sieve-session. I'm just losing the will to live staring at 1-3mm beetles is all, ha! Oxytelus laqueatus swept a week ago was number 111 for the year and that was a week ago. Backlog box is looking good though :(

      Delete
    2. That's good going. I'm kind of hoping that the next couple of day's forecasted rain gives me the chance to tackle the backlog of grass heap beetles. Those ptilids don't dissect themselves.

      Delete
  2. I like that wing comparison. Also it shows how the discal and the open area differ in size between the species and on how long the vein is between the two on vittata.

    ReplyDelete
    Replies
    1. Glad you like it Ali, I hadn't realised just how much of a size difference there was between them (the body is much larger too). This could be the year I make headway into Tipulidae. Mind you, I may have said something similar last year too :D

      Delete
  3. Been doing lots of flies recently, now on 198 species for the year. I don't really look at nematocera, but so far this year have seen 8.44% of the calyptrates on the British list, not bad for so early in the season...
    Beetle recording is a bit pathetic though, seems to have taken a back seat at the moment.

    ReplyDelete
    Replies
    1. I dare say that what you call pathetic, the rest of us would call pretty decent. I reckon you'll have identified more fly species by the middle of June than I will have identified in my entire life!

      Delete
    2. Thus far, I mean. I intend to improve :D

      Delete

The Results are In

Just a very brief post, firstly to say thank you to everybody who has taken the time to read this blog throughout the year. I definitely sho...