Summary for Dictyna major (Araneae)

previous species | next species

National Distribution

Logged-on? click on dot to query records. Please note our
Terms of Use. Double-click on map to go to region

View time series maps for Dictyna major
Identification difficulty rating: 5
Name: Dictyna major
Authority: Menge, 1869
Order: Arachnida: Araneae
Family: Dictynidae
National Rarity status: NR
IUCN status: CR, criteria: B2ab(ii,iv)

Records: 19
First Record: 1893
Latest Record: 1998

1992-on hectads: 2
Pre-1992 hectads: 7
Total hectads: 8

Explore Regional Distribution

Identification guidance for Dictyna major

Please log on and add a note on this species

Missing records?

Please report any problems with this record:
VC error
GR error
Taxon ID suspect
Structural habitat suspect
Other problems, please explain here:


About this species

Recorded altitude range
2m to 10m

Species text

There are old records from Aberlady Bay, East Lothian, from Loch Morlich, East Inverness-shire in 1893, from near Forres, Morayshire in 1910, and from the Isle of Hoy, Orkney Islands in 1897 (Stewart 1992). The only modern records are of a single male in 1991 at Barry Links in Angus and of two males in 1998 at Gruinard in West Ross. D. major has been found throughout much of northern Europe, including France, Belgium, the Netherlands, Germany, Denmark, Sweden (where it is on the Red List (Gärdenfors 2000)), Finland, and in the Balkans, Poland, Romania and possibly Hungary.

Habitat and ecology
Sandy beaches, stony loch shores. The spider has been collected by pitfall traps in marram on fore dune and on bare sand and amongst dried seaweed on the landward side of dunes by a small tidal stream. At Aberlady Bay, the males were found running over warm sand and the females were concealed with their egg cocoons in pieces of dried seaweed and withered leaves on the sand. At Loch Morlich, specimens were found on the shore at an altitude of about 320 metres. It is not unusual for coastal species to be found on loch shores. The modern records of adult males are in the period between the end of May and early June.

Although there are records from eight hectads, the spider has been recorded from just a single location since 1992. Area of occupancy has shown an apparent decline of 83% from six hectads before 1992 to just one since that date. However, few people are likely to have collected on beaches in Scotland.

The species is possibly threatened by public pressure on beaches, disturbing the strandline.

Management and conservation
The drift line should be left undisturbed, and measures taken to minimise the effect of public pressure on fragile dune system habitats.

Text based on Dawson, I.K., Harvey, P.R., Merrett, P. & Russell-Smith, A.R. (in prep.).  References

Adult Season

Adult Season Data (based on 1 records with adult season information)


background methodology

Broad Habitat Data (based on 2 records with habitat information)

no subhabitat data available

Structural Habitat Data (based on 1 records with structural habitat information)

Habitat Detail and Method (based on 1 records with habitat detail and method information)

Recorded management for locations with Dictyna major

Recorded substrate and hydrology for locations with Dictyna major


sorry, no pictures available for this species yet - if you have an image please log on and upload it

See also A-Z Species Index - A-Z Picture Index - previous species | next species