PIERIDAE 
152 
CATOPSILIA 
Q. Above. Forewing pale cream: apex and termen, brown-black: a series of obscure discal spots, 
brown. Hindwing yellow, towards base and dorsum paler: termen with a small spot on each vein, 
brown-black. 
Beneath as in male: spots on discoeellulars larger. 
Loo. Cape York 4 5. Daly R. 4. Darwin 10. Tennants Creek. 3$. 
The race gorgophone seems to be confined to Queensland and N. S. Wales, and etesia to Cape York 
and H. W. Australia. We have examples of etesia from Darwin that differ very little from gorgojUione, 
but so far have no proof that typical examples of both forms occur in any one locality. 
Genus TEE.IAB Swainson. 
Zoological Illustrations, First Series, I, pi, 22, 1820-21. 
Antennae less than half the length of costa. Forewing with vein 11 from subcostal onefiftli before 
end of cell: vein 10 from subcostal just before end of cell: vein 9 present but vein 8 absent: vein 6 froa 
vein 7. Hindwing without preeostal spur. Pupa vith pointed head, but without lateral spikes; wing; 
cases produced to meet and touch, forming a strong ventral keel. 
Type. Terras hecahe Linne, from China. 
Foodplant. Cassia. 
This genus of small sulphur yellow^ butterflies differs from the rest of the Australian Pieridae in 
the absence of the preeostal spur of the hindwing, and therefore forms a connecting link with (he 
Lycaenidae. The butterflies are all slenderly built, have a low weak flight, and in some localities are very 
abundant. 
The species are separated into three groups by the pre.sence and position of secondary sexual 
characters. These sexmarks are of two types. In the males of virgo^ sulpliuraia and indecisa, they 
consist of silky grej^ scales upon both sides of the median vein of forewing beneath, and form a con¬ 
spicuous and easily recognised character. In the males of sana, lierloy and lineata, they consist of a 
patch of closely set, irregular, salmon-coloured scales below the median vein of forewing benealli, and 
a similar but smaller patch between vein S and subcostal of liindwing above. When present on both 
wings, those of the hindwdng are the less conspicuous. By holding the set specimens against the light, 
these sexmarks may be easily discerned, as the yellow scales of the wing tlien intensify the darker scale? 
of the sexmark. 
Key to the Species of TEIUA^, 
A. Sexmark of male absent. zoraide. 
B. Sexmark of male on forewing only. 
a. Dark terminal margins above, uniformly broad. vlrgo. 
h. Dark terminal margins above, uniformly narrow: three dots in cell of forewing beneath indecisa. 
c. Dark terminal margins above irregular: two dots in cell of forewing beneath . sidphurata. 
C. Sexmarks of male on both wings. 
a. Sexmark of greyish scales, above and below median vein of foi’ewing beneath . smihx. 
h. Sexmark of salmon-coloured scales, below median vein of forewing beneath. 
a^. Concolorous beneath . sana. 
h^. Not concolorous beneath. 
or. Dark streaks of hindwing beneath, straight. Jineata. 
Dark streaks of liindwing beneath, curved. herla. 
216. Terias libythea Fabricius. (India). 
216a. T. libythea zoraide Felder. Fig. 538, 539, 540. 
Reiso Novara Lepidoptera, p. 213, 1865. 
Above. Forewing yellow: costa, apex broadly, and termen, brown-ldack: base dusled lirown-black: 
costa towards apex often narrowly splashed yellow. Hindwing yellow: termen brown-black: base 
dusted brown-black. 
Beneath. Forewing yellow: costa and termen sometimes narrowly lined pink: two dots on disco- 
cellulars, brown-black: apex and termen with a minute dot on each vein, brown-black. liindwing 
yellow, often dusted with dark scales: termen sometimes narrowly lined pink; two dots on diseoeellu- 
lars, brown-black: a basal series of faint dots, brown-black: a series of faint irregular discal streaks, 
brown: termen sometimes with a minute dot at each vein, brown-black. 
