Thursday, 28 July 2016


A new species of hoverfly to add to the valley list Helophilus hybridus i found today feeding on hogweed in field next to the cottages at shwt at first i thought it was Helophilus trivittatus because it had the larger yellow abdomen markings that you expect from these 2 species but smaller on the more common H.pendulus. The difference between the three is trivittatus lacks the strong black facial stripe that the other two have. This species had a strong facial stripe so to separate it from the common H.pendulus you need to check the hind tibia. In H.pendulus the apical  is a third black but in H.hybridus the apical is half or more black as shown in pictures below

as you can see on the hind tibia on above image the black extends over half way compared to the pendulus below

Helophilus pendulus

Thursday, 21 July 2016

Merthyr mawr moth light 19/7/16.

      Small purple barred

         Pseudopostega crepusculella

        Scorched carpet

     Chinese character

       Lesser stag beetle

     Pyrausta ostrinalis

     Epagoge grotiana

    Double kidney

      Shore wainscot

      Four spotted footman

     Agonopterix liturosa

      131 species in my traps, with more in George's, which were up on the limestone crag. A warm
      night, still 20 degrees at 3AM when we were leaving. My actinic was full of hundreds of the
      ground beetle Harpalus rufipes, which reduced the catch in that trap greatly.

Friday, 15 July 2016

Merthyr mawr warren moth light. 13/7/16.

      MV light on site

     Brown scallop

    Female glow worm

      Rosy footman

      Garden tiger

    Buff tip

     Barred yellow


      Coleophora lixella

      Archers dart.
      106 species in total.

Friday, 8 July 2016

CWMDU today

I came across this Physocephala rufipes - Thick headed fly that belongs to the conopidae family feeding on bramble its the second time i've had this species with only a dozen records on NBN gateway for Glamorgan

Monday, 4 July 2016

Llangynwyd yesterday.

        White plume moth

          Grapholita janthinana

         Chrysotoxum bicinctus

       Episyrphus balteatus

          Leucozona laternaria

        Volucella bombylans.

Sunday, 3 July 2016

Aberbaiden lanes yesterday and cwmdu today

A walk along woodland between road and opencast produced some interesting species of flies and hovers, after checking every Rhingia campestris over the years for the rarer rostrata i eventually come across one here to my delight. Also i came across a new hoverfly for the valley and a lifer for myself in Criohina berberina, although i was unable to get a photograph as proof so i wont be adding it to valley list until i can get photographic evidence, so hopefully another visit on another day one may show up.Also..........

Tabanus sudeticus

Rhingia rostrata

Chrysotoxum festivum

not sure on this one but i believe it to be the rare hybomitra distinguenda yellow horned levels horsefly waiting for it to be confirmed 

Chrysops viduatus square spot deerfly

Keeled skimmer
 Parhelophilus species a hint of tubercule hair present but not enough to convince the experts

Tacchina grossa

tree bumble bee ? Bombus hypnorum


 Xanthagramma stackelberg

Xylota xanthocnema