Hesperilla flavescens Waterhouse, 1927
Altona Skipper
TRAPEZITINAE, HESPERIIDAE

Don Herbison-Evans ( donherbisonevans@yahoo.com )
&
Stella Crossley

(updated 27 November 2004)

This Caterpillar is smooth and green, with a dark dorsal line. The head is brownish with a black 'V' mark. It feeds on various species of Sword Grass ( CYPERACEAE ) , especially:

  • Thatching Grass ( Gahnia filum ).

    It constructs a shelter out of several blades of grass joined together with silk, it which it rests by day. It emerges to feed at night.


    Male
    (Specimen: courtesy of Museum Victoria)

    The adult butterfly is dark brown fading to yellow at the base of each wing. Each wing also has a yellow patch, and each fore wing also has a number of small white spots. The males have a dark line acros part of each forewing. Underneath, the wings are fawn. There are brown and yellow patches under the fore wings, and there is an arc of outlined white spots under each hind wing. The wing span is about 3 cms.


    Female
    (Photo: courtesy of Museum Victoria)

    The eggs are white and laid singly under the leaves of a foodplant.

    The species is found as two sub-species in small areas of south-eastern Australia :

  • flavescens near Altona and Ararat, in Victoria, and
  • flavia near Adelaide in South Australia.
  • The latter is considered to be in danger of extinction, and a recovery plan has been proposed for the subspecies.


    Further reading :

    Michael F. Braby, Butterflies of Australia, CSIRO Publishing, Melbourne 2000, vol. 1, pp. 155-156.


    previous
    back
    caterpillar
    Australian
    Australian Butterflies
    butterflies
    Australian
    home
    caterpillars
    Australian
    Australian Moths
    moths
    next
    next
    caterpillar