Drepanidae: Thyatirinae

1659 (ABH65.016) Yellow Horned Achlya flavicornis, (Linnaeus, 1758)

KR07498

 Photo © Barry Dickerson
Yellow Horned
 Photo © Barry Dickerson
 pre-2000
 2000-2009
 2010-2019
 2020-onwards
 Photo © Barry Dickerson
Monks Wood
Monks Wood
 Photo © Nick Greatorex-Davies
Monks Wood (Ovington plot), March 2008.
Monks Wood (Ovington plot), March 2008.
 Photo © Nick Greatorex-Davies
Whitelye, Monmouthshire, MV trap. 28th March 2015. Male.
Whitelye, Monmouthshire, MV trap. 28th March 2015. Male.
 Photo © Nick Greatorex-Davies
Whitelye, Monmouthshire, MV trap. 28th March 2015. Male.
Whitelye, Monmouthshire, MV trap. 28th March 2015. Male.
 Photo © Nick Greatorex-Davies


General Information

The vernacular name alludes to the yellowish colour of the antennae.

 

Pupates in leaf litter.

Overwinters as Overwinters as a pupa.
Both sexes readily come to light, sometimes in numbers.

Forewing length: 17-20mm.
Foodplant(s): Silver Birch (Betula pendula), Downy Birch (Betula pubescens)
Flying: One generation, February-April
UK Presence: Resident
National status: Common

Habitat

Woodland, heathland and moorland with birch scrub.

Regional Information

Recorded in 18 (6.7%) of the 270 2km squares of Huntingdonshire.

Last recorded in March 2019

Recorded date range (Adult): 07 February to 07 August



Larva/Leafmine:
Larva Type:
Smooth
Colours:
Green, white, grey, orange, brown
No. of Proleg Pairs:
5