North Cave Wetlands – 17/06/2016

A cloudy overcast day with a northerly breeze blowing. Very little activity on the dragonfly front with only a handful of Blue-tailed Damselflies Ischnura elegans, Azure Damselflies Coenagrion puella and a single Common Blue Damselfly Enallagma cyathigerum found. An exuvia on the most easterly dragonfly pond was the only clue to any larger species presence, the exuvia proving that Emperor Dragonfly Anax imperator has emerged from this pond. As this species spends up to four years in the larval stage, this individual could be the first Emperor to emerge from this pond. My records indicate that 2011 was the first year that dragonflies were recorded at these ponds.

Blue-tailed Damselfly - Ischnura elegansBlue-tailed Damselfly – Ischnura elegans

Azure Damselfly - Coenagrion puellaAzure Damselfly – Coenagrion puella

Emperor Dragonfly - Anax imperator (Exuvia)Emperor Dragonfly – Anax imperator (Exuvia)

On the lepidoptera front, I never saw a single butterfly as I walked around due to the dull conditions, though several micro moths were photographed for ID later. See photos below.

7.001 Nemophora degeerellaNemophora degeerella

49.157 Plum Tortrix - Hedya prunianaPlum Tortrix – Hedya pruniana

49.166 Celypha lacunanaCelypha lacunana

49.265 Eucosma canaEucosma cana

49.285 Epiblema scutulanaEpiblema scutulana

49.379 Pammene auranaPammene aurana

72.031 BF2069 The Cinnabar - Tyria jacobaeaeCinnabar – Tyria jacobaeae

The overcast but mild conditions seemed to favour the beetles, with plenty to find on this visit. Found two Common Malachite Beetles Malachius bipustulatus on this visit, after finding my first ever on a recent previous visit this year. Both were found on vegetation to the south and west of Carp Lake. Looking at the distribution map on the NBN Gateway seems to indicate that this is a species spreading eastwards into the East Riding. Always nice to see representatives of the Longhorn Beetles with a few of both Golden-bloomed Grey Longhorn Beetle Agapanthia villosoviridescens (a mouthful in both English and scientific name) and Wasp Beetle Clytra arietis. Several Soldier beetles noted including Cantharis Livida, Cantharis rustica and Cantharis cryptica. The later, following a prompt, needs careful checking to separate it from Cantharis pallida, the key indicator being the maxillary palps which are pale at the tip in cryptica, but darker in pallida. The Nettle Weevils Phyllobius pomaceus are now loosing their scales, most now having large black patches where the scales have rubbed off. A few Small Green Nettle Weevils Phyllobius roboretanus were also present, though these do need checking underneath to rule out a very similar species. One of our largest weevils, Liophloeus tessulatus, was found on the brambles to the south of Carp Lake. A few small beetles found on Sallows appear to be Blue Willow Beetle Phratora vulgatissima, though this has still to be confirmed, which may not be possible without dissection. The final two include Oedemera lurida, which again seems to be a species spreading north, along with Harlequin Ladybird Harmonia axyridis, probably the most well known recent invasive beetle to the British Isles.

Common Malachite Beetle - Malachius bipustulatusCommon Malachite Beetle – Malachius bipustulatus

Golden-bloomed Grey Longhorn - Agapanthia villosoviridescensGolden-bloomed Grey Longhorn – Agapanthia villosoviridescens

Wasp Beetle - Clytus arietisWasp Beetle – Clytus arietis

Cantharis lividaCantharis livida

Cantharis rusticaCantharis rustica

Cantharis crypticaCantharis cryptica

Phyllobius pomaceusPhyllobius pomaceus

Phyllobius roboretanusPhyllobius roboretanus

Liophloeus tessulatusLiophloeus tessulatus

Blue Willow Beetle - Phratora vulgatissimaBlue Willow Beetle – Phratora vulgatissima

Oedemera luridaOedemera lurida

Harlequin Ladybird - Harmonia axyridisHarlequin Ladybird – Harmonia axyridis

Several fly species were active and some photographed, at least the ones which I thought I had a chance of identifying. All these shown below, along with our largest millipede species, which can often be found climbing vegetation during the day.

Poecilobothrus nobilitatusPoecilobothrus nobilitatus

Twin-lobed Deerfly - Chrysops relictusTwin-lobed Deerfly – Chrysops relictus

Terellia ruficaudaTerellia ruficauda

Chloromyia formosaBroad Centurian – Chloromyia formosa

Eupeodes corollaeEupeodes corollae

Leucozona lucorumLeucozona lucorum

Striped Millipede - Ommatoiulus sabulosusStriped Millipede – Ommatoiulus sabulosus

Finally the birding highlights included the Scaup type hybrid on Reedbed Lake, though asleep when I observed it. A Corn Bunting Emberiza calandra was on the northern hedge, it’s song likened to the sound of jangling keys, alerting me to its presence, though just to far away for a decent photo. The Mediterranean Gulls Larus melanocephalus were on Main Lake and two Common Terns Sterna hirundo were over Carp Lake.

Scaup type hybird! amongst Tufted DuckScaup type hybird! amongst Tufted Duck

Sedge Warbler - Acrocephalus schoenobaenusSedge Warbler – Acrocephalus schoenobaenus