Over 50,000 views of this blog, I hope people have enjoyed it as much as I have enjoyed it. This year I’ve had no time what so ever since starting my new job working for the NHS in the operating theatre. Hopefully once things settle down I will have time to do some recording next year.

Autumn is here RA1

Autumn is now here and most hymenoptera are gone, my last walk I saw very few bees at all, Hornets and wasps were plentiful as their colonies are now at full strength. Loads of ladybirds around especially if you use a sweep net.

Crossocerus binotatus- RA1-Quy Fen

A scarce yellow-marked Crossocerus, closely resembling the relatively frequent C. dimidiatus, but typically with entirely yellow tibiae.

Recorded widely, though sparingly, across England, with one record from Scotland (Murroch Glen, Dunbartonshire, 1903). Abroad, known from central Europe and the Caucasus (Lomholdt, 1975-76).

Status (in Britain only)
Listed as Notable B by Falk (1991) (now known as Scarce (Nb)). There is no evidence of a particularly strong decline, though it has never been a common insect.

Associated with dead wood and timber, with British records from a variety of situations, including woodland, parkland, wetland, non-intensive agricultural settings and even gardens.

Flight period
Univoltine; early June to early September.

Prey collected
Medium-sized flies such as lauxaniids and rhagionids.

Nesting biology
Nesting occurs in burrows in dead wood and timber, including fallen logs, rotten stumps, fence posts and building timbers.

Flowers visited
No information available. Males may ‘swarm’ around trees and bushes in a similar manner to C. dimidiatus.

As you can see not many records from East Anglia

Mimumesa dahlbomi – RA1

Mimumesa dahlbomi

The only confirmed record on iRecord and NBN and only one other record which is unconfirmed.

Widespread but local throughout England and Wales to Glamorgan and north to Inverness-shire. There is also one record from Ireland.

The species is common across Europe (Lomholdt 1984)

Status (in Britain only)
Not listed in Shirt (1987) or by Falk (1991) and is not thought to be scarce or threatened.

Else & Felton (1994) indicate a varied habitat selection, including open woodland, heathland and coastal locations. Associated with dead wood habitats for nest sites.

Flight period
Richards (1980) cites May to September.

Prey collected
Nymphs of homopteran bugs within the families Delphacidae and Cicadellidae (Richards 1980). Lomholdt (1984) notes that up to 38 prey specimens have been provided for one larva.

Nesting biology
Widely quoted as nesting in old beetle holes in dead wood and this is undoubtedly typical, but John Felton (Else & Felton 1994) has observed a specimen leaving a burrow in the soil.

Not my photo,

Specimen retained for county records.

A day of wasps- Quy Fen

Wasps are hunting their prey from flies to the smaller lasioglossum bees to caterpillars. Until this year I had never seen a Nysson sp of wasp in the last two months I’ve seen two species one rare and loads of Nysson trimaculatus.