Ocybadistes flavovittata (Latreille, [1824])
Common Dart
(formerly known as Taractrocera flavovittata)
TRAPEZITINAE ,   HESPERIIDAE ,   HESPERIOIDEA
  
Don Herbison-Evans
(donherbisonevans@outlook.com)
and
Stella Crossley

Ocybadistes flavovittata

Each egg of this species is laid singly on a blade of one of the grasses (POACEAE) which are the foodplants of the Caterpillar.

The Caterpillar is initially yellow with a black head. Later instars are green with a black and white head, and a darker line running along the back. The caterpillar lives singly within a frond of grass, which is curled and closed with strands of silk to form a shelter. It grows to a length of about 1 cm. To us, the caterpillar was indistinguishable from that of the related species Ocybadistes walkeri. Most of these caterpillars found in Melbourne were Ocybadistes walkeri, and most of them found in Sydney were Ocybadistes flavovittatus.

Ocybadistes flavovittata
(Photo: courtesy of the Macleay Museum, University of Sydney)

The caterpillar pupates in its grass shelter.

Ocybadistes flavovittata
upper surface
(Specimen: courtesy of the Macleay Museum, University of Sydney)

The butterfly is brown with an orange/yellow pattern on the wings. The male has a black line on the top of each forewing. Underneath, both sexes are yellow tending to brown toward the rear of each wing. When the butterfly is at rest, it often poses with the fore wings vertical and the hind wings horizontal. It has a wingspan of about 1.5 cm.

Ocybadistes flavovittata
underside
(Specimen: courtesy of the Macleay Museum, University of Sydney)

It is found as the subspecies kokoda Evans, 1949, in

  • New Guinea,

    and as two further subspecies in Australia :
    flavovittata in

  • Queensland, and
  • New South Wales,

    and vesta ( Waterhouse, 1932) in the

  • Northern Territory, and
  • the north of Western Australia.

    Ocybadistes flavovittata


    Further reading :

    Michael F. Braby,
    Butterflies of Australia,
    CSIRO Publishing, Melbourne 2000, vol. 1, pp. 202-203.

    Wesley Jenkinson,
    Life History Notes on the Narrow-brand Grass-dart, Ocybadistes flavovittata flavovittata (Latreille, [1824])
    and the Greenish Grass-dart, Ocybadistes walkeri sothis (Waterhouse 1933) Lepidoptera: Hesperiidae)
    ,
    Metamorphosis Australia,
    Issue 54 (September 2009), pp. 16-20,
    Butterflies and Other Invertebrates Club.

    Pierre André Latreille,
    Histoire Naturelle: Insectes,
    in P.A. Latreille & J.B. Godart : Encyclopedie Methodique,
    Volume 9, Part 2 (1824), p. 768, No. 114.


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    (updated 2 October 2002, 28 September 2013, 8 March 2015)