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Delplanqueia inscriptella
Brown Powdered Knot-horn (Duponchel, 1836)
Pyralidae: Phycitinae
1462a / 62.0151
Photo © Jim Hodgkinson,  16/06/2017 - Dersingham

Similar Norfolk Species
Powdered Knot-horn
Delplanqueia dilutella
Wingspan: 18-23mm
Flight: June - July
Foodplant:   Wild Thyme
Nat Status: Unknown
Verification Grade:  Adult: 4
Norfolk Status
Unknown.

D. dilutella has now been split, and has a sister species D. inscriptella. Differences in the genitalia of both sexes were detected by Leraut (2001) and the species added to the British list in 2015 (D. Agassiz, Ent. Rec.127)

D. inscriptella is more variable than D. dilutella, ground colour dull brown rather than grey, normally lacking a white sub-basal fascia.

Distribution is unknown until more specimens have been determined. It is thought that most Norfolk records of D. dilutella are probably D. inscriptella.

Determination by Genitalia Examination (gen. det.) Required

Recorded in 14 (20%) of 69 10k Squares.
First Recorded in 2001.
Last Recorded in 2019.

Latest 5 Records
Date#VC10k Area
10/08/2019128TL78 - Hockwold/Weeting
29/07/2019128TL78 - Hockwold/Weeting
23/07/2019+28TL78 - Hockwold/Weeting
21/07/2019127TG23 - N.Walsham/Roughton
20/07/2019128TL78 - Hockwold/Weeting
Further info: Delplanqueia inscriptella
 
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