07/08/2025
Butterfly of the Month: July 2025
Caper Gull (Cepora perimale)
The Caper Gull is a striking butterfly with a wingspan of 43mm for both male and female. It belongs to the family of the Whites and Yellows (Pieridae). As the family name suggests, both colours are dominant, and there is minimal difference between the genders.
The upper wing side is white with a hint of grey at the base of each wing. A wide black outer margin contains a series of white spots.
The underside of the forewing, like on the upper side, carries white as its main colour with a large dark band along the outer margin, again enclosing spots of which one to two are yellow to orange. This band extends in a narrower version along the upper margin (costa).
Standing out is the hindwing on the underside of the butterfly, dominated by its yellow colour which varies in strength and intensity, and again bordered on the outer margin with a wide dark band that encloses one to three yellow or orange flecks.
The dry season variety of our Caper Gull surprises with a lovely warm brown dominating the hindwing as can be seen in our collage.
Cepora perimale starts its life cycle with a spindle-shaped ribbed white egg which turns orange within a short time. The emerging hairy larva is green and adorned with the tiniest of spots. If on a leaf, the subsequent pup again turns out to be of green colour, but may show brown if, for instance, is located on a branchlet.
In Brisbane the female butterfly choses misc. Capparis species including C. arborea as the larval host plant for her offspring. Vine thickets, woodlands and open (eucalypt) forests are the preferred habitat type for the Caper Gull.
Images:
CM - Cliff Meyer; KW - Ken Walker CC BY-NC-SA 4.0; MA - Margaret Alcorn CC BY NC 4.0; PC - Peter Chew