Leucania spp.


The diagnostic characters in Leucania of the French Antilles are somewhat variable and difficult to interpretate. The identification key presented here might be used with fresh specimens only. A correct identification in this genus needs an examination of genitalic structures.


Forewings uniformly beige with a black mark and a black spot at the top of the cell. Fringes of the hindwings very pale:

Leucania inconspicua


Forewings different

Base of the forewings brown, without dark line starting from the base.

Forewings with a dark line starting from the base.


Forewings: the cubital vein does not contrast with the dark line.

Leucania dorsalis

Forewings: the white cubital vein contrasts with the dark line.

Wide light triangle at the apex of forewings. Weak contrast on the cubital vein. Light fringes on hindwings. Wingspan 38-41 mm:

Leucania chejela

Narrow light triangle at the apex of forewings. Striking contrast on the cubital vein. Wingspan 32-36 mm:

Leucania humidicola


Base of the forewings brown, without dark line starting from the base.


One or two black dots on the first abdominal segments. Hindwings: darker border and veins lined with black:

Leucania senescens

First abdominal segments unmarked. Hindwings: lighter border and veins:

Leucania subpunctata


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