STATES OF INSECTS. (Jmago.) 301 
the same author is the other sex of his Meloe Marci ; 
one of which is chiefly testaceous, and the other black: 
which seems to have so misled Linné, that he placed 
them in different genera. One more instance in this 
order, the female of Cicindela campestris, as was first ob- 
served to me by our friend Sheppard, has a black dot on 
each elytrum, not far from its base near the suture, which 
the male has not. 
Amongst the Orthoptera, the male Locuste ¥., as Pro- 
fessor Lichtenstein has informed us ?, have a fenestrated 
ocellus, which is not to be found in the other sex. I was 
once attending to the proceedings of a Hemipterous spe- 
cies, Pentatoma oleracea, which I found in union: the 
paired insects had white spots, but another individual 
was standing by them, in which the spots were of a san- 
guine hue. I mention this by the way only—the spots 
in the prolific sexes being of the same colour: but might 
not the red spotted one be a neuter ? 
The sexes of many Lepidoptera likewise differ in their 
colour. I must single out a few from a great number of 
instances. The males of Polyommatus Argus have the 
upper surface of their anterior wings of a dark blue, 
while in the female it is wholly brown. The wings of 
the former sex of Hypogymna dispar are gray, clouded 
with brown ; but those of the latter are white, with black 
spots. In the brimstone butterfly (Gonepteryx Rhamnt), 
which is one of the first that appear in the spring, the 
wings of the male are yellow—of the female greenish 
white. In the common orange-tip (Pontia Cardamines), 
one sex has not the orange-tip to the upper wings : and, 
to name no more, the male of Lycena Hippothoe, one of 
* Linn. Trans. iv. 54—. 
