Soldier Fly

A male Beris morrisii (Diptera: Stratiomyidae).

The scutellum has 6 spines which are enmeshed in long pale hairs:

A ventral view of the genitalia (actually of another specimen caught at the same time):

Specimens collected in the Wilderness, Whiteknights Park, Reading, UK, on 2017-08-04.


Robber Fly

A male Neoitamus cyanurus (Diptera: Asilidae).

A lateral view:

And a lateral view of the genitalia:

Specimen collected in the Wilderness, Whiteknights Park, Reading, UK, on 2017-08-04.


Anthomyiid Fly

A male Anthomyia plurinotata (Diptera: Anthomyiidae). This is the third member of this species I have come across after the male I collected back in 2014 and the female I photographed back in 2013.

Specimen collected in The Wilderness, Whiteknights Park, Reading, UK on 2017-04-22.


Tachinid Fly

A male Linnaemya vulpina (Diptera: Tachinidae) with 2 missing legs.

Specimen caught on Roseberry Common, North Yorkshire, UK, on 2016-08-23.


Early Season Anthomyiid Flies

I spent most of Sunday the 5th of March trying to identify some Anthomyiid flies I had caught the day before.  There were 4 clean-looking light grey females with yellow halteres and 10 rather grubby little males.  I was using some draft keys produced by Michael Ackland.  I chose first to run the females through his partial key to species females.  The first 3 all ran through to different species in spite of all looking very similar.  None of these species had I come across before and I couldn't get any confirmation from photos on so I had very little confidence in them as identifications.  I eventually gave up and turned to the males. 

I picked out a male with a largish head and with Ackland's draft key to males it ran straight through to Egle ciliata.  A quick check on revealed several very similar images so I took this as a good identification.  The second male ran through to Lasiomma seminitidum which I had also never heard of.  The 3rd, 4th and 5th did the same and from the look of the remaining males it seemed likely that they would also go to the same species.  With so many males of the same species there must surely been some females around?  I went back and ran the first female through the draft female key backwards from Lasiomma seminitidum and it matched every couplet.  The other females did the same.

So what I had was 4 females and 9 males of Lasiomma seminitidulum along with the 1 male of Egle ciliata.  But how come I had not even heard of such an obviously common fly before?  More or less as a last resort I decided to look up Lasiomma in the Genera Characteristics section of Ackland's draft key.  There it stated: "L. seminitidum being one of the earliest species to emerge in early March".  Then I realised I hadn't wasted my day.