Blastobasidae
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Photo © George Fowler,  Broxbourne, Hertfordshire (12/07/22)

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Blastobasis lacticolella

Rebel, 1940874 / 41.003
=Blastobasis decolorella

General comments:

Probably ubiquitous

B. lacticolella did not reach Britain until 1946, when it was found in south-east London (Wakely, 1947). The first Hertfordshire record was not until 1987 when I found it in my garden light trap in Bishops Stortford, but it was probably established earlier, because that was my first full year in residence in the county and apart from Raymond Uffen, whose stalwart efforts have produced many new species for the county list, it appears that there were no other microlepidopterists in the county since the departure of Eric Bradford in the late 1960s. We were able to define the species as 'expected everywhere' by the year 2002, but in truth it had probably reached this abundance by about 2000.

In older books it is called Blastobasis decolorella, in error.

Recorded in 35 (85%) of 41 10k Squares.
First Recorded in 1969.
Last Recorded in 2024.
Additional Stats

Blastobasis adustella | Blastobasis vittata >

List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
30/06/2024220TL30 - Hoddesdon / Cheshunt
22/06/2024120TQ09 - Watford / Rickmansworth
11/05/2024120TQ09 - Watford / Rickmansworth
27/10/2023120TL42 - Bishop's Stortford (N)
23/10/2023120TL31 - Hertford
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Blastobasis lacticolella
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VC20 VC21 VC21 VC20
Click Map for Details
Wingspan: 13-22m
Flight: Two gens May-Aug. Sept-Nov.
Foodplant:   Variety of vegetable matter.
Nat Status: Common
Verification Grade:  Adult: 2
 Immature Adult   [Show Flight Weeks]
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