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Scolopostethus affinis - Scolopostethus affinis

Favourite Photos

image species author location uploaded taken select
Scolopostethus affinis Scolopostethus affinis - Scolopostethus affinis dylan Laundry Lane 4 Feb 2021, 3:11 p.m. 7 May 2020, 3:38 p.m.
Scolopostethus affinis Scolopostethus affinis - Scolopostethus affinis dylan Laundry Lane 4 Feb 2021, 3:11 p.m. 7 May 2020, 3:38 p.m.
Scolopostethus affinis Scolopostethus affinis - Scolopostethus affinis dylan Laundry Lane 29 Apr 2023, 8:37 p.m. 29 Apr 2023, 2:28 p.m.

Species Description

Fairly frequent and widespread throughout the UK but most common in the South. Habitat includes: Places with leaf litter (often seen below clumps of nettles) for example gardens, allotments, parks, cemeteries, woodland, hedgerows, road side verges, scrub etc. Length= 3.5-4.5mm. Flight period/Adult: All year round.

  • Scolopostethus affinis -
  • Scolopostethus decoratus /
  • Scolopostethus grandis //
  • Scolopostethus pictus -
  • Scolopostethus puberulus x
  • Scolopostethus thomsoni -

ID:

Scolopostethus affinis:

1st and 2nd antennal segments are pale and the base of the 3rd may be also. The mesosternum (the area of the abdominal underside in front of the middle legs) bears a pair of obvious curved tubercles in males and a pair of smaller inconspicuous tubercles in females. Adults may be brachypterous (small wings) or macropterous (large wings). Length: 3.3 - 4.0 mm

Scolopostethus decoratus:

Antennae are entirely black with the exception of the base of the 2nd segment. The bug is almost always macropterous (large wings). Length: 3.5 - 4.0 mm

Scolopostethus grandis:

1st antennal segment is pale and the 2nd partly darkened. The mesosternum (the area of the abdominal underside in front of the middle legs) bears a pair of obvious curved tubercles in males and a pair of smaller inconspicuous tubercles in females. The sides of the pronotum are keeled and have a large and obvious pale spot just behind the middle. Adults may be brachypterous (small wings) or macropterous (large wings). Length: 3.9 - 4.6 mm

Scolopostethus pictus:

Antennae are entirely pale or only slightly and gradually darkened towards the tip. Adults are usually macropterous (large wings) and often have a rather brightly marked appearance in the field. The mesosternum lacks tubercles. Length: 4 - 5 mm

Scolopostethus puberulus:

1st and 2nd antennal segments are entirely pale. The mesosternum (the area of the abdominal underside in front of the middle legs) lacks tubercles (see S. affinis). The rostrum is longer than in S. thomsoni, reaching the hind coxae and the dorsal surface is covered in short pubesence. Adults are usually macropterous (large wings). Length: 3.5 - 4 mm

Scolopostethus thomsoni:

1st antennal segment is pale and the 2nd partly darkened. The mesosternum (the area of the abdominal underside in front of the middle legs) lacks tubercles (see S. affinis). The rostrum is shorter than in S. puberulus and does not reach the hind coxae. Adults are usually brachypterous (small wings). Length: 3.5 - 4 mm