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APPENDIX. 
( 33 . ) 
DESCRIPTION AND FIGURES 
OF FOUR NEW SPECIES OF AUSTRALIAN INSECTS. 
By Adam White, Esq. M.E.S. 
' f*- n *' £ 
The four insects here figured and described are, as far as 
I am aware, new. Petasida, and Tettigarcta are interesting 
in the shape of the Thorax, differing widely from that in any 
of the allied genera, while the new species of Eurybrachys 
and Chrysopa are striking from their colouring and marks. 
Petasida ephippigera, pi . 4 . fig . 1. 
Thorax much dilated behind, depressed and rounded at 
the end ; the side deeply sinuated behind ; head pointed, 
antennae long ; of a yellowish orange ; antennae with a few 
greenish rings, cheek below the eye with a greenish line, 
head above with a longitudinal greenish line. Thorax with 
a slight keel down the middle, wrinkled behind of a dusky 
blueish green, a large patch of an orange colour on each 
side in front, and a small spot of the same colour on each 
edge of the produced part at base ; elytra orange with 
numerous black spots, and black at the tip, lower wings 
pale orange at the base, clouded with black at the tip ; 
abdomen orange, slightly ringed with green ; legs orange, 
with three greenish spots on the outside of the femora of 
hind legs. 
Length 1 inch 9 lines. 
Hab. Australia. 
Chrysopa maculipennis, pi . 4 . fig . 2 . 
Head red, with a black spot on the crown ; antennae 
short brownish black ; thorax hairy ; thorax, abdomen, and 
legs, brownish black. Wings brown, with iridescent hues, 
