Showing posts with label True Bugs. Show all posts
Showing posts with label True Bugs. Show all posts

Rural Tracks

Throughout France there is a network of variously named public rights of way. One of the most frequently encountered by walkers is the chemin rural (plural chemins ruraux). These are (usually) unpaved tracks owned and maintained by the local commune. They are almost always ancient laneways, winding through farms and today used by walkers, horse riders, hunters and farmers. Sometimes they are unmarked, but usually they have a small sign at either end with the letter R, C or V and an a number to identify them. They also frequently have the standardised walking trail symbols posted along them and appear on maps as part of the national hiking trail (randonnée) network. Even when they appear to be private farm tracks, the public is permitted to walk them. Walking them in all seasons is a great way to get to know the wildlife of this area, as they are usually long thin grasslands bordered by hedges, woodland or agricultural land, and sometimes even aquatic habitats such as streams, ditches, springs and ponds. You are unlikely to meet another person on most of them.

A chemin rural near Yzeures sur Creuse, October.
A chemin rural near Yzeures sur Creuse, October.
A notice issued by the local authority who has responsibility for maintaining this chemin rural, stapled to a trackside tree. It says that motorised vehicles are not permitted on this track between October and May ie the months when it is likely to be wet. The commune very sensibly does not want the track churned up and ruined by hunters' vans or farm machinery.
Bird watching in the Brenne down a track near la Maison du Parc.

Bird watching in the Brenne, near l'Etang vieux. This track had a sign temporarily banning agricultural vehicles because it was flooded, however that didn't stop anyone on foot who was prepared to take off their boots and slosh.
The sign on this track in the Brenne says 'Attention. Track under repair. Do not tow vehicles down it.' There was no problem (apart from ankle deep water) in walking down it.
A track through the bocage country along the River Vienne near Chinon.
A track through arable crop land and forest. This is one of my butterfly transects.


A Cicada Tibicina haematodes




Scientific Name: Tibicina haematodes (Cicadidae).

English Name: None (Cicada family).


French Name: La Cigale rouge (='red cicada').


5 Key Characters:
  • two spines on front femur.
  • red on pronotum (body section between head and abdomen) as well as abdomen.
  • wing veins red, especially at bases.
  • sits on trees but extremely difficult to see even though a large insect.
  • males buzz loudly and persistently.

Lookalikes: None in this area.


Habitat: Trees.


Adult Active Period: June-July-August-September.


Status: Common.


Photographed by Loire Valley Nature:

Female on redcurrant in a garden in Le Petit Pressigny. Note the pair of spines on the front femur.

Female on redcurrant in a garden in Le Petit Pressigny.

Female on redcurrant in a garden in Le Petit Pressigny. Although not showing much red on the pronotum or wings, she is clearly reddish on the abdomen.

Odontotarsus purpureolineatus (a shield bug)




Scientific Name: Odontotarsus purpureolineatus (Scutelleridae).

English Name: a shield bug (Shield Bug family).

French Name: La Pentatome à raies pourpre (='purple striped shield bug').


5 Key Characters:
  • 'shoulders' do not come to a sharp point. 
  • the dark stripes which extend to the rear are relatively far apart. 
  • 8 - 10 mm long.
  • shaped like an oval with pointed head and rear.
  • colour varies from yellowy brown to reddish brown.

Lookalikes: O. robustus, which has pointy 'shoulders' which extend well beyond the abdomen and dark stripes at the rear which are close together. It is a bit larger than O. purpureolineatus and has a more southerly distribution.

Habitat: Grassland.

Adult Active Period: August-September.

Status: Not uncommon.

Photographed by Loire Valley Nature:

Tortoise Bugs Eurygaster spp




Scientific Name: Eurygaster spp (Scutelleridae).


English Name: Tortoise bugs (Jewel Bug family).


French Name: Les punaises des céréales (='a cereals bug'). Also les punaises-tortue (='a tortoise bug').


5 Key Characters:
  • all species very variable in colour -- can be yellowish, brown, grey or black, and may or may not have brown stripes.
  • may have a central keel down scutellum and pronotum (middle body plate).
  • scutellum (large 'plate' on the back) is U-shaped.
  • the 'shoulders' are rounded (some species a bit more than others) and extend to the corium (upper outer part of the wing) or just beyond, depending on species.
  • quite large for a shield bug, at a bit more than a centimetre long.

Lookalikes: There are 5 species of Eurygaster in France, and all are extremely difficult to tell apart. E. austriaca, E. testudinaria and E. maura are the most common. The differences are subtle and difficult to judge without having all the species in the hand to compare, or good dorsal photos (looking straight down on the insect). E. austriaca has the most pronounced keel, others may have none at all. Another key character is the relationship of the clypeus (the central front part of the head) with the 'cheeks'.

Habitat: Cereal crops, hot dry calcareous wild flower rich grassland. E. testudinaria prefers damper habitat.


Adult Active Period: All year, but especially May to August.

Status: Three species are widespread and quite common, can sometimes be a pest of cereal crops.

Further Reading: Note that Insects of Britain and Western Europe by Michael Chinery is not much use for Eurygaster in France. It only shows the two British species and the characters listed for them are not reliable for separating these two, much less from any of the others. The best resource is the online forum Le Monde des Insectes (in French).

Photographed by Loire Valley Nature:

How to Use this Website

Loire Valley Nature is designed to be used as an English language natural history web resource for lowland central France. It uses Blogger software for its easy accessibility, but it is not written as a blog ie as a periodical record of events or thoughts like a diary. Pages can be added or updated at any time.

The website comprises different types of pages, which form a network, linking one to another so you can drill down to the specific information you need. Please note that we have deliberately chosen to open all links and photos in a new page, so if you find this annoying or confusing, please just get into the habit of closing each page as you exit. We decided to go with new pages for everything because otherwise it can be difficult finding a page from earlier in your research, and in identifying species, you often have to compare information and photos on different species account pages. The back page function can be used, but can also be confusing.

Why is the website called Loire Valley Nature, when in fact, the area it is concerned with does not actually cover the entire Loire Valley?

We decided to call it Loire Valley Nature because we felt it was a name people not so familiar with the area might search for. Strictly speaking, the area covered is the Touraine, Berry and part of Poitou, or the modern administrative départments of Indre (36), Indre et Loire (37) and Vienne (86), but these are names not all of our readers may know. The website covers an area which is within the central southern boundaries of the Loire Valley in its broadest sense, ie all the rivers within the area are tributaries of the Loire and feeding into the Loire Valley system. The three départements together make up a total area of 20 000 km². In Australian terms, this is ten times the Australian Capital Territory, or one-tenth the size of Victoria. In British terms, it's the same size as Wales. Scattered across the area are many small villages and towns but the only city with a population over 100 000 is Tours. Within this area the main focus is on the relatively well known wetland of the Brenne and the half of the Touraine that is south of the Loire,  a triangle between Chinon in the west, Chambord in the east and Loches in the south. In particular there is a lot of information about the Claise valley, as that is where we live.

Geologically, we are on the southern edge of the Paris Basin, just before the land starts to rise into the Massif Central. This is lowland central France, mostly less than 100 metres above sea level (masl). The area is situated in the heart of western Europe, but is home to a surprisingly high level of biodiversity and many rarities due to its position on the northern and eastern edge of the range of Mediterranean, Turkish and Iberian species and similarly, it is on the southern edge of the range of northern European species.

The soil is mostly calcareous, often with a high clay content, but there are pockets of sand. The land is used for broadacre farming with many mixed farms and large areas of woodland, both deciduous broadleaf and conifer. The riparian and wetland habitats are of international importance, with numerous rivers and streams. Of particular note are the many man-made fish lakes, known as étangs, forming the Brenne, France's third most important wetland (after the Camargue and the Marais Poitevin). Less well known are the dry limestone butts, called éperons, which host a noteworthy assemblage of plants, including many orchids, adapted to very calcareous soils. There are also remnant pockets of heathland.

The most useful general guide to the area is the Crossbill Guide to the Loire Valley, reviewed by us here.

If you are interested in other aspects of the Loire Valley, Brenne and Touraine, you might like to read our daily blog, Days on the Claise or book an excursion with Loire Valley Time Travel. To see our range of nature walks and workshops, please click on the page tab above. You can email us by clicking on our profile links to the right. Please note that we always respond to emails within 48 hours, so if you do not get a response, please check your spam folder or get in touch via the Loire Valley Time Travel contact page.

Broad-headed Bugs - Alydidae

The Broad-headed Bugs Alydidae are a small family of true bugs, with only a couple of species occuring in this area (only 10 species in the whole of Europe). They have protruberant eyes and heads as broad as they are long, on slender bodies. The 4th (final) antennal segment is very long and curved (sometimes only faintly). The nymphs often bear a remarkable resemblance to ants.

Camptopus lateralis: found in dry places throughout southern Europe. The nymphs are extremely ant like in appearance and behaviour. Do not confuse them with the very similar and closely related Alydus calcaratus, the adult Mirid bug Myrmecorus gracilis (rare and does not have spikes) or nymphs of the Damsel bug Himacerus mirmicoides, all of which are also superb ant mimics. Adult C. lateralis have enlarged rear femurs. The photo below is of a nymph in our orchard, June.


Assassin Bugs - Reduviidae

Assassin Bugs Reduviidae are predatory true bugs with strong hypodermic beaks for piercing their insect prey and sucking out their soft parts. They have distinct necks and some have enlarged raptorlike front legs for capturing and holding prey.

Pirates hybridus
A species of hot open areas that does not occur much further north, it walks over the ground waving its antennae. The part directly behind the head, known as the pronotum, is in two distinct sections, with the front part much longer than the rear. Active April - October. Below, photographed in our orchard, April.