The first new species of 2026

 To reach my aim of 100 species I am clearly going to have to see quite a few that will be new for me. Today I achieved the first of these, though I have to say I didn't notice at the time.


Sweeping and searching along a Blackthorn hedge at Weston Moor I couldn't decide on the species for an apparent Eristalis hovering in front of me. Thinking that I must still be very poor at these I took it home and was delighted when I discovered that it was a Greater Spring Blacklet (Cheilosia grossa).

I used a bit of CO2 to slow it down, popped it into my lightbox and fired of a few photos as it woke up.



Cheilosia grossa female

I had noticed what looked like Spear Thistle near the hedge so this was presumably the source  of this individual

Back in the garden I was surprised to see a Tiger Marsh hoverfly as it seemed too early but then noticed that a second person had reported one today on the UK hoverflies Facebook group.



I am very aware that this will probably be the species that I see most in the year but its good to see my first. 


It also gave me the opportunity of learning again how to tell males from females as the eyes are separate in both. In males, like this, the eyes start parallel at the rear then diverge towards the antennae.


Warm weather this week at least gives me the chance of reaching 10 species before the month is out though again, every Platycheirus I saw today was albimanus. Someone in Bristol saw a large bumblebee mimic yesterday and I was sorely tempted to head for the site and try and twitch it as if it was a vagrant bird........  but that way lies madness  !

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