Wildlife Articles

Wildlife Articles


On this Page:   The Wall Lizards Podarcis of the Iberian Peninsula    Anthophora plumipes    A guide to Norfolk's Crickets     Nick's Beemails,   Wasp Spider , Ivy Bee


All content and images are ©Perry Fairman Ecological Experiences unless otherwise indicated

Wall Lizards Introduction



In May 2018 a trip to Spain see (The Spanish Pyrenees, Belchite Plains & the Ebro Delta) included three main areas: Spanish Pyrenees, Belchite Plains and the Ebro Delta.  Several species of Lizards were seen and photographed here, as they had been in previous visits to Spain.

In all cases, I am lucky enough to have someone to identify these Lizards in Mike Linley who is a very well respected Herpetologist and wildlife film-maker.

On returning from the trip I consulted Mike and was given privy to a distribution map, that at the time had yet to be published.  With his help and from the map's details I was able to identify the Wall Lizards I had seen.

I hope that in publishing this map and introduction from Mike it may help others, in going some way to identifying what they see on the Iberian Peninsular.


The Wall Lizards Podarcis of the Iberian Peninsula

MIke Linley


Many of the reptiles observed by birdwatchers as they travel through Spain and Portugal are both relatively easily observed and readily identifiable. Not so the ubiquitous “Wall Lizard”, often spotted either basking in the sun or scuttling up the favoured habitat of rocks, walls, and buildings.

When I was a schoolboy a single species, Lacerta muralis, was said to be distributed over much of Europe, including the whole of Spain and Portugal. But even then, on my family holidays, it was clear to me that there was a huge variety in their colouration and markings depending on their location. Now, after several years of work, a friend of mine, Vicente Sancho and others, has separated and identified the species that occur throughout the Iberian Peninsula, all now assigned to the Genus Podarcis.

The geography of Iberia, high mountains and sierras, rivers and valleys have led to isolation and speciation over millions of years and several ‘ice ages’. Below is the distribution map of Podarcis in Spain and Portugal which you might find useful on your travels in the future. 

If you’d like to read more and see photographs of the species, you can view them here.

https://esoescomotodo.jimdofree.com/reptiles/podarcis-hispanica/


Mike Linley.

Anthophora plumipes is the name I have always known this Bee as, after identifying it some years ago from Michael Chinery’s book: ‘Collins Guide to the Insects of Britain and Western Europe’. Since those days, the vast majority (if not all!) of Bees have ‘common names’, but I can’t see how the name of Hairy-footed Flower Bee really helps to identify it, or to narrow it down as a ‘flower bee’! 

However, this attractive and in my mind charismatic Bee is very sexually dimorphic (males and females appearing completely different) early-emerging species (March-early June). 

I will leave the description to Dr. Nick Owens from his book, ‘The Bees of Norfolk (pp 174 and for further information), which says:

Females have black hair except for the hind tibia and tarsus, which have orange pollen collecting hairs and the tongue is very long in both sexes.

Males are largely ginger-brown and are often mistaken for Carder Bumblebees. They have a large area of pale yellow on the long face and a pale yellow marking beneath the antennal scape. They often have long hairs on the mid tibia, giving the species its common name.

I usually see these Bees visiting Flowering Currant flowers or those of Three-cornered Leeks in my garden in Martham, Norfolk but for a more comprehensive look at A. plumipes flower preferences see:

The Foraging Preferences of the Hairy-footed Flower Bee (Anthophora plumipes (Pallas 1772) in a suburban garden, by Maggie Frankum, 3 Chapel Lane, Knighton, Leicester LE2 3WF

This will also give you an idea of what plants to include in your garden, in order to attract these Bees.

In addition to A. plumipes flower preferences, there is also a way to encourage them to nest in your garden (which I have only recently learnt about), via ‘Mud Bricks’ (Cobs) ‘invented’ by John Walters.

Dr. Nick Owens first told me about these structures and suggests the following:

‘You need just clay soil, dead grass, pebbles/gravel and water. Mix it in a bucket then make a mould for the brick/s out of wood or tiles. It needs to be about 15 cm from front to back. Leave it in the sun to dry then push a bamboo cane in to make holes of about 5 – 10 cm deep while the brick is still soft. The Bees will use the holes and excavate brood cells leading from these.’ 

I can see different ‘recipes’ evolving over time for these excellent additions to the garden for our declining Bee population, but for John Walter’s ‘recipe’ see his You Tube video.

As a former teacher, I can see the benefit of these ‘Bee-bricks’ for informing school pupils about Solitary Bees and the creation of them is a very good practical lesson along with continued observation and differing levels of theory for differentiation purposes.

Thanks to Dr. Nick Owens for telling me about the ‘mud brick’ nesting site and his knowledge.  Also, to John Walters for his terrific invention and enhancement of gardening for Bees and Maggie Frankum for her article on Foraging Preferences.

A guide to Norfolk's Bush Crickets


Bush Crickets have very long antennae, often exceeding the body length. Females have a ‘blade-shaped’ ovipositor at the end of the abdomen for egg-laying.  Adults can be found between July and November, although the nymph stages can be found before this, particularly Dark Bush Crickets.


Oak Bush Cricket Meconema thalassinum

A small delicate Cricket, which is mainly pale green with a yellowish-white stripe on the dorsal side of the body, found in woodlands, hedgerows and gardens. Can be seen during the day but also at night when I have seen them coming through an open window, drawn by the light.


Great Green Bush-cricket Tettigonia viridissima

A large Cricket, which has a pale brown stripe along its back, and the wings exceed the length of the abdomen. Found in grassland, overgrown hedgerows with Brambles and also in reedbeds. Only found in a few places in Norfolk, particularly around the Reedham area.



Dark Bush-cricket Pholidoptera griseoaptera

A bulky dark brown Cricket found in woodland edges and hedgerows (where it tends to favour Brambles) and rough grassland. I have had this cricket turn up in the kitchen sink after being drawn to light on one occasion.


Roesel’s Bush-cricket Metrioptera roeselii

A dark brown dorsal area with a cream margin around the sides of the dark pronotum and three pale spots on the sides of the thorax are what to look for in this species. It is found in rough grassland and indeed lush grassland especially next to water (e.g. Thompson Common’s Pingos) and in roadside vegetation.


Bog Bush-cricket Metrioptera brachyptera

A brown and green cricket with green underside and the rear side of the pronotum has a cream edge. Look for this cricket in damp heathlands (e.g. Holt Lowes). Due to the habitat preference, this species is much localised.



Long-winged Cone-head Conocephalus discolour

A slender green cricket with a brown dorsal stripe.  The long brown wings extend beyond the abdomen. Found in both dry and damp grasslands, reedbeds, heathland and woodland edge. Once uncommon in Norfolk but it has extended its range quite considerably. I saw my first one ever when it landed on my arm at Horsey!


Short-winged Cone-head Conocephalus dorsalis

A small, slender green cricket, with a brown dorsal stripe and wings, which only stretch half way along the abdomen (unlike Long-winged Cone-head). Found in Sand dunes (e.g. Winterton North Dunes along the pool edges), marshes and along the edges and in reedbeds (e.g. Hickling Weaver’s Way).


Speckled Bush Cricket Leptophyes punctatissima

This is a bulky, green cricket with a brown dorsal stripe and dark speckles over the whole body. Woodlands, hedgerows and gardens are favoured and again like some of the aforementioned species Brambles are a good place to look.


These series of Beemails from Nick (2020) can now be used as a guide to Bees during their flight times at different months of the year (Scroll down to find the month or period you require).


Nick is the Norfolk County Recorder for Bumblebees- records of Bombus species can be sent to him with photographs (where possible) at: owensnw7@gmail.com

All Images on Nick's Beemails ©Nick Owens

September-October


There are three Colletes species (plasterer bees) which are active in late summer: the Ivy Bee (Colletes hederae), the Heather Bee (Colletes succinctus) and the Sea Aster Bee (Colletes halophilus). All nest in large aggregations, sometimes in the thousands. The three species look very similar, with rich brown hair on the thorax and a white stripy abdomen. They are best distinguished by the pollen they are collecting. Males and females are very similar but males have longer antennae and lack pollen-collecting hairs (the scopa) on their hind legs. The Ivy Bee reached Norfolk in 2013 and is now very common throughout the county. Nests are often made on banks or lawns with their large numbers producing an audible buzz. The bees are very unlikely to sting. They collect pollen almost entirely from Ivy. The Heather Bee is a well-established species but confined largely to heathland and heather covered dunes such as those at Winterton. They take pollen from Ling Heather but also sometimes from other flowers. The Sea Aster Bee can be found wherever there is a large amount of this plant growing on saltmarshes or the edge of brackish lagoons on the coast. Pollen is taken almost entirely from Sea Aster.

Epeolus Variegated Cuckoo Bees (such as Epeolus cruciger) are cleptoparasites of Colletes species, laying eggs in the pollen collected by their host.


July and August


July and August see the appearance of several summer bees which specialise in particular flowers. Norfolk is a good place to find two Andrena species which are scabious specialists: they take pollen only from Knautia arvensis Field Scabious, Scabiosa columbaria Small Scabious or Succisa pratensis Devilsbit Scabious. The Large Scabious Bee Andrena hattorfiana is easily recognised by its large loads of pink pollen when foraging on Field Scabious. The Small Scabious Bee Andrena marginata more often uses Small Scabious which has pale pollen. It is sometimes accompanied by the very rare Nomad bee Nomada argentata. The Brecks and the coast are the best places to look, but the Large Scabious Bee is also present in Earlham Cemetery. Another Andrena to look out for, which first appeared in Norfolk this year, is Andrena florea the Bryony Mason Bee – a specialist on White Bryony flowers.

Other pollen specialists in Norfolk include three members of the Blunthorn Bees – Melitta species: Melitta haemorrhoidalis Gold-tailed Melitta, Melitta leporina Clover Melitta and Melitta tricincta Red Bartsia Melitta. The first takes pollen from Harebells and other Campanulaceae, the second favours White Clover while the third takes pollen only from Red Bartsia.  All three species seem to be steadily increasing in the county. Again they have a specific Nomad cleptoparasite, Nomada flavopicta.

                  Andrena hattorfiana F.                        Andrena marginata F.

                  Nomada argentata                                Melitta leporina M.

                  Dasypoda hirtipes F.                      Panurgus banksianus M.

                                             Megachile ligniseca F.

Two rather local bee species to be looked for are Dasypoda hirtipes Pantaloon Bee and Panurgus banksianus Large Shaggy Bee. Both specialise on yellow Asteraceae such as Field Sowthistle and Common Catsear.

Other bees to look for in the summer months are the Leaf-cutter Bees Megachile species and of course bumblebees, including cuckoo bumblebees. Leaf-cutters often nest in bee hotels, constructing their nests out of pieces of leaf cut from roses and other plants. ï»¿

May and June

In May and June the spring Andrenas and their Nomads mostly fade away. Some will have a second brood in the summer. In their place several Mason Bees (Osmia species) appear and, a little later, Leafcutter Bees (Megachile species) as well as Hoplitis claviventris (Welted Mason Bee) and Heriades truncorum (Large-headed Resin Bee). 
These three groups belong to the Megachilidae, a family which collects pollen on hairs beneath the abdomen rather than on the legs. The veins on the wing have two submarginal cells (the cells below the one on the top edge) rather than the three submarginals seen in several other bee families such as Andrena and Lasioglossum
The images opposite (M.=male, F. =female show the Osmia species you are likely to find in Norfolk and the notes (below) give some identification clues. 
Osmia bicolor is slowly spreading through Norfolk from the Brecks, so worth keeping a look-out for its nest in a snail shell covered in a camouflage of stems. Also, I am looking for information about the leaves that are used for the mastic which four of these Osmia species use to make their cell partitions. Please let me know (owensnw7@gmail.com) if you are able to identify a Mason Bee and the plant it is gathering leaves from. 
Some types of leaves may help to reduce parasite or fungal attack. Also look out for cleptoparasitic bees in the genus Stelis (Dark Bees) and Coelioxys (Sharp-tail Bees) attending Osmia and Megachile nests. 

Nick Owens

      Osmia leaiana F. & M.
Just to reiterate:
Nick is looking for information about the leaves that are used for the mastic, which four of these Osmia species use to make their cell partitions. 
Please let Nick know by emailing him at owensnw7@gmail.com if you are able to identify a Mason Bee and the plant it is gathering leaves from. 
Thank you, 
Perry.
Osmia bicolor near nest 
                       Osmia bicolor M.                                    Osmia bicornis M. & F.
 Osmia caerulescens F. collecting leaf mastic for nest      Osmia caerulescens F.
                  Osmia caerulescens F.                                 Osmia caerulescens M. 
                            Osmia leaiana F.                        Osmia leaiana F. sealing nest with mastic
                       Osmia spinulosa F.                                Osmia spinulosa-mating
Osmia species in Norfolk

Scientific name         Falk & Lewington name        Scopa         Eye-colour female   Eye-colour male         Nest              Nest partitions   Bee Hotel       Pollen                       Notes
   
Osmia caerulescens   Blue Mason Bee                      Black               Dark                      Green               Cavity in stems      Leaf mastic         Yes          Varied Female       large head blue tint
Osmia leaiana           Orange-vented Mason Bee    Orange             Dark                      Dark                Cavity in stem        Leaf mastic         Yes          Asteraceae            Female heavily punctured
Osmia spinulosa        Spined Mason Bee                 Orange             Blue                       Blue                Snail shell             Leaf mastic                         Asteraceae            Male spine underbody
Osmia bicolor            Red-tailed Mason Bee           Orange             Dark                      Dark                Snail shell             Leaf mastic                         Fabaceae              Nest wig-wam of stems
Osmia bicornis           Red Mason Bee                      Pale orange     Dark                       Dark                Cavity in stems      Mud                    Yes           Varied                   Female horns

April 
 
There are a lot of solitary bees on the wing now. I have seen Gwynne’s Mining Bee Andrena bicolor, Large Gorse Mining Bee A. bimaculata, Clarke’s Mining Bee A. clarkella, Short-fringed Mining Bee A. dorsata, Yellow-legged Mining Bee A. flavipes, Tawny Mining Bee A. fulva, Orange-tailed Mining Bee A. haemorrhoa, Buffish Mining Bee A. nigroaenea, Grey-patched Mining Bee A. nitida, Small Willow Mining Bee A. praecox, Chocolate Mining Bee A. scotica & Cliff Mining Bee A. thoracica close to my home at Weybourne. 
All of these are solitary mining bees, often leaving tell-tale tumuli of soil on the surface, looking a bit like a mini-volcano. These are often in clusters, but each hole belongs to a different bee. Many of these are attended by nomad bees (Nomada species) which are cleptoparasites of the Andrenas. Each Andrena species generally has its own cleptoparasite. 
Nomad bees look rather like wasps, having yellow and black or red and black colours. They enter the nest burrow and lay eggs and then the newly hatched nomad larva destroys the host egg or larva with its strong jaws and feeds on the food store of the host bee. They are a sign of a strong host population and display some of the most interesting aspects of bee behaviour. A newly arrived nomad bee Nomada zonata is spreading around Norfolk and worth watching out for. 
Another parasite of Andrena bees is the Bee-fly Bombylius major. This looks like a brown furry bee and deposits its eggs in the entrance of nests while hovering above them. Plenty of Hairy-footed Flower Bees Anthophora plumipes are also active along with their cleptoparasite Common Mourning Bee Melecta albifrons
A different group to look out for is the family Halictidae. This includes the genera Halictus (End-banded Furrow Bees), Lasioglossum (Base-banded Furrow Bees) and their cleptoparasites Sphecodes (Blood Bees). 
A fairly common species is the Orange-legged Furrow Bee Halictus rubicundus which can be mistaken for an Andrena. Like all Halictus it has a mark on the tail looking like a hair parting. Sharp-collared Furrow Bee Lasioglossum malachurum is appearing mid-April in nesting aggregations, usually in gravelly ground. It is rather a drab bee but it has queens and workers and a complex social life. Workers appear first and then males later in the year.
            Female Gwynne's Mining Bee                   F.  Clarke's Mining Bee
        F. Yellow-legged Mining Bee                          F. Tawny Mining Bee
          F. Orange-tailed Mining Bee                      F. Buffish Mining Bee
               F. Nomada zonata                             F. Common Mourning Bee
                                         Orange-legged Furrow Bee
          F. Sharp-collared Furrow Bee               Blood Bee; Sphecodes puncticeps
March 

So far I have seen Clarke's Mining Bee A. clarkella and Gwynne's Mining Bee A. bicolor males and females, Early Nomad Bee Nomada leucophthalma, Little Nomad Bee N. flavoguttata & Furry-clasped Furrow Bee Lasioglossum lativentre
I have Heath Bumblebees Bombus jonellus queens in my garden and have also seen Carder Bumblebee B. pascuorum, Buff-tailed Bumblebee B. terrestris and Early Bumblebee B. pratorum. Other people have seen Hairy-footed Flower Bee Anthophora plumipes males. 
We can soon expect a much wider range of bees to appear - it just needs to get a bit warmer. Temperatures of 12-15 C are about the minimum for solitary bees, with sunshine making a big difference. Bumblebees can be active in much lower temperatures because they can generate heat in their bodies. 
There will be further species of Andrenas appearing, each with their attendant cuckoo bee (Nomada species or nomad bees). In general each Andrena has its own specific nomad. For example Nomada leucophthalma attacks A. clarkella while N. flavoguttata attacks A. bicolor. Sometimes a nomad targets more than one Andrena species but when this happens the Andrenas are usually close relatives. 
All images below ©Nick Owens.
* Bombus jonellus: Notice the red hairs on its hind legs and three yellow stripes. It is much smaller than a Garden Bumblebee and has a round face with a short tongue. 
Wasp Spider 
Argiope bruennichi
The Wasp Spider Argiope bruennichi was first recorded in Britain in 1922 at Rye and although it has been known on the south coast for some time, it has been spreading north (as far as the East Midlands, Bee, Oxford & Smith 2017) and is now becoming a familiar spider (in suitable habitats) to far more people.

Citations with respect to the Wasp Spider's expansion north:
Krehenwinkel & Tautz (2013) suggest that the range expansion into far Northern latitudes may be a consequence of the admixture (see below for definition) that provided the genetic material for adaptations to new environmental regimes, hence, global warming could have facilitated the initial admixture of populations and this resulted in genetic lineages with new habitat preferences.  

Henrik Krehenwinkel (2013) dissertation results indicate that the spider´s range expansion is associated with admixture of formerly isolated genetic lineages from around 1930 onwards. The ecological experiments indicate that invasive spider populations have simultaneously adapted to colder temperatures by shifting their thermal preference and tolerance.  

Basic description
The female (11-15 mm) is a very striking species with the dorsal view exhibiting the ‘wasp-like’ yellow, white and black abdomen, although the ventral side is far less obvious. The much smaller male (4-4.5 mm) is pale brown and like many species of Arachnids tends to get consumed whilst mating. Probably the reason (thus far) I have not seen a male!
The large Orb web, built just above ground level also has a zigzag stabilimentum, although I have seen this absent in some webs.

Habitat
Females tend to appear in August, although the males are out earlier. Unmanaged rough grassland is where to find these spiders and any form of regular cutting will destroy the webs and the over-wintering egg cocoons. I have seen this happen and where there was once Wasp Spiders they are no longer present. There also appears to be a correlation between where the spiders are in terms of sunlight; areas, such as Bradwell Park where succession has reduced the light and resulted in no Wasp Spiders present there now.

Egg sacs
The egg sacs are relatively large and indeed quite conspicuous, looking like urns or maybe milk churns. These egg sacs overwinter to produce next year's crop of spiders. However, where grass is regularly mowed these do not survive.
Prey
The preferred prey appears to be mainly Grasshoppers, but other insects will be taken, as illustrated in the photographs (below). Like many other Arachnid species, the speed at which the prey is wrapped-up is rather impressive!
Definition of 'Admixture'
Genetic admixture is the presence of DNA in an individual from a distantly-related population or species, as a result of interbreeding between populations or species who have been reproductively isolated and genetically differentiated. Admixture results in the introduction of new genetic lineages into a population. https://en.wikipedia.org › wiki › Genetic_admixture

References
Oxford, G. & Smith, H 2017. British Spiders A field guide. Princeton University Press, Old Bassing.

Krehenwinkel H (2013) A phylogeographic, ecological and genomic analysis of the recent range expansion of the wasp-spider-Argiopebruennichi https://pdfs.semanticscholar.org/cb53/31b98ea4ff89ce0df22aca618d8419ac2641.pdf

Krehenwinkel H, Tautz D (2013) Northern range expansion of European populations of the wasp spider Argiope bruennichi is associated with global warming–correlated genetic admixture and population-specific temperature adaptations. Molecular Ecology. 22, 2232–2248.


Ivy Bee 
Colletes hederae
In 1993 the Ivy Bee Colletes hederae was described as a new species to science from specimens found in southern Europe, with the first British records reported from Dorset September 2001.
The ivy bee has been spreading north and is now found in Norfolk, where I found the 5th site for Norfolk at Bradwell 14th September 2015 whilst looking for insects attracted to Ivy flowers Hedera helix. At the time, I knew very little about this species or for that matter, solitary bees in general. It was my interest in ‘all things great and small’ and the inclination to photograph different species, for both identification purposes and as a learning curve to further my understanding of ecology that led to finding and identifying this species (confirmation from the county recorder Tim Strudwick).
The ivy bee is a Colletes species aka plasterer bee and times its emergence with the flowering of the ivy (late August onwards), which is its principal forage plant and the only plant I have seen them on, but is said to visit other species of flowers e.g. members of the Asteraceae (Daisy family), when ivy flowers are not available.
The males emerge first followed by the females both have ‘wide’ whitish bands on the abdomen with an orange hue, particularly the females which have orange-brown hairs on the thorax. The females are about the size of a Honey Bee, with ‘relatively short’ antennas and collect pollen on their hind legs, unlike honey bees, which have a discrete pollen ‘basket’. The males are smaller with long antennas.
Nesting aggregations can occur on bare or slightly vegetated light soils, which face predominantly south. The first nesting colony I found was at Burgh Castle (2017) on a south-facing, lightly vegetated hedgerow bank alongside an access road.
There is two other ‘late appearing’ species of Colletes, which the ivy bee could possibly be confused with. The first is Colletes halophilus aka Sea Aster Bee (which C. hederae was first thought to be) and secondly Colletes succinctus aka Heather Mining Bee. As their common names suggests, sea aster and heather, respectively are the primary foraging plants for each of the species and the flower species these bees are visiting can aid identification. However, there are always exceptions to ‘the rule’, especially when a preferred food source is unavailable. Two examples of this (2017) concern C. halophilus at Morston, which I only found foraging on yellow thistle species and C. succinctus, which were visiting ivy flowers (pers. com Nick Owens).
The importance of ivy flowers as a source of food for autumn insects is fairly well known, but now it has even more significance as the primary food source, for this attractive and relatively recent addition to the fauna in the UK.
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