North Cave Wetlands – 04/06/2019

A mainly overcast morning with a light south-easterly breeze blowing. Temperature around 14 degrees C.

A good morning spent hunting invertebrates, with plenty of personal first (NEW), site firsts (NFS) and firsts for the year (NFY). The True Bugs are a group I’m trying to focus on, so it was nice to find my first Squashbug for the site, Coriomeris denticulatus found along the northern path. A couple of Mirid Bugs were found along the western path, Psallus cf. ambiguus and Psallus cf. varians, a tricky genus so awaiting confirmation on these two. Having done well with other Shieldbugs, Elasmostethus interstinctus Birch Shieldbug has eluded me at Cave, finally being added to my site list. Other Birch related species added included Kleidocerys resedae Birch Catkin Bug and Oncopsis cf. flavicollis, the latter quite a variable species and possibly confused with another species. Stenodema laevigata and Leptopterna dolabrata Meadow Plant Bug were site firsts, with a small cluster of around 20 Picromerus bidens Spiked Shieldbug nymphs being the first of the year. On the beetle front Anaspis cf. regimbarti was a new species awaiting confirmation. Otiorhynchus singularis Clay-coloured Weevil was a first for the site, with Bruchus cf. rufimanus Bean Seed Beetle and Oedemera lurida being the first of the year. A few new Leipdoptera for the year with Ochlodes sylvanus Large Skipper and Polyommatus icarus Common Blue representing the butterflies. Hedya pruniana Plum Tortrix, Tyria jacobaeae Cinnabar, Syndemis musculana Dark-barred Twist and Micropterix aruncella White-barred Gold representing the moths, the latter a new species for me. A couple of Wasps Argogorytes fargeii and Ectemnius continuus were NFY, along with Sawfly Arge cyanocrocea. A few more Hoverflies now appearing with a Eumerus sp, Helophilus hybridus and Syrphus ribesii NFY. Other flies included the first of the ‘biting brigade’ Chrysops relictus Twin-lobed Deerfly and the first Soldierfly Chloromyia formosa Broad Centurion.

Away from the inverts. Lissotriton vulgaris Smooth Newt in the eastern Dragonfly Pond were NFY, accompanied by good numbers of Triturus cristatus Great Crested Newt. Bird-wise two drake Anas penelope Wigeon are unusual for the time of year on Reedbed Lake, where a drake Anas querquedula Garganey was also present. Cettia cetti Cetti’s Warbler still singing around the reserve and it looks like a few pairs of Sterna hirundo Common Tern have settled on Cell A of Dryham Ings.

Beetles (15)
Adalia decempunctata – 10-spot Ladybird
Agapanthia villosoviridescens
Agelastica alni – Alder Leaf Beetle
Anaspis cf. regimbarti (NEW)
Bruchus cf. rufimanus – Bean Seed Beetle (NFY)
Cantharis livida
Clytus arietis – Wasp Beetle
Coccinella septempunctata – 7-spot Ladybird
Harmonia axyridis – Harlequin Ladybird
Malachius bipustulatus – Malachite Beetle
Oedemera lurida (NFY)
Otiorhynchus singularis – Clay-coloured Weevil (NFS)
Phyllobius roboretanus – Small Green Nettle Weevil
Propylea quattuordecimpunctata – 14-spot Ladybird
Pyrochroa serraticornis – Common Cardinal Beetle

Butterflies (5)
Anthocharis cardamines – Orange-tip
Ochlodes sylvanus – Large Skipper (NFY)
Pararge aegeria – Speckled Wood
Pieris napi – Green-veined White
Polyommatus icarus – Common Blue (NFY)

Moths (9)
Celypha lacunana – Common Marble
Epiblema costipunctana – Ragwort Bell
Epiblema scutulana – Thistle Bell
Hedya pruniana – Plum Tortrix (NFY)
Micropterix aruncella – White-barred Gold (NEW)
Syndemis musculana – Dark-barred Twist (NFS)
Tyria jacobaeae – Cinnabar (NFY)
Zygaena filipendulae – Six-spot Burnet (NFY)
Zygaena lonicerae – Narrow-bordered Five-spot Burnet

Dragonflies (7)
Brachytron pratense – Hairy Dragonfly
Coenagrion puella – Azure Damselfly
Enallagma cyathigerum – Common Blue Damselfly
Erythromma najas – Red-eyed Damselfly
Ischnura elegans – Blue-tailed Damselfly
Libellula quadrimaculata – Four-spotted Chaser
Pyrrhosoma nymphula – Large Red Damselfly

True Bugs (12)
Cercopis vulnerata
Coriomeris denticulatus (NEW)
Elasmostethus interstinctus – Birch Shieldbug (NFS)
Grypocoris stysi (NFY)
Kleidocerys resedae – Birch Catkin Bug (NFS)
Leptopterna dolabrata – Meadow Plant Bug (NFS)
Oncopsis cf. flavicollis (NFS)
Palomena prasina – Green Shieldbug
Picromerus bidens – Spiked Shieldbug (NFY)
Psallus cf. ambiguus (NEW)
Psallus cf. varians (NEW)
Stenodema laevigata (NFS)

Bees & Wasps (6)
Bombus pascuorum – Common Carder Bee
Bombus lapidarius – Large Red-tailed Bumblebee
Bombus hypnorum – Tree Bumblebee
Arge cyanocrocea (NFY)
Argogorytes fargeii (NFY)
Ectemnius continuus (NFY)

Grasshoppers & Crickets (1)
Leptophyes punctatissima – Speckled Bush-cricket

Hoverflies (10)
Cheilosia variabilis
Eristalis intricarius
Eristalis tenax
Eumerus sp. (NFY)
Helophilus hybridus (NFY)
Parhelophilus sp.
Pipizella sp.
Platycheirus sp.
Syrphus ribesii (NFY)
Tropidia scita

Other Flies (2)
Chloromyia formosa – Broad Centurion (NFY)
Chrysops relictus – Twin-lobed Deerfly (NFY)

Amphibians (2)
Lissotriton vulgaris – Smooth Newt (NFY)
Triturus cristatus – Great Crested Newt

Birds (4)
Anas penelope – Wigeon
Anas querquedula – Garganey
Cettia cetti – Cetti’s Warbler
Sterna hirundo – Common Tern

NEW – First time ever recorded
NFS – First time recorded on site
NFY – First site record for the year
.cf – Confident Id of Genus, though species only likely correct, or awaiting confirmation.