BY WALTER W. FROGGATT. 267 



General colour pale yellow, with the tips of the antenna-, a 

 broad patch on either side of the dorsal surface of the head, a 

 double row of smaller markings on the thorax and basal 

 abdominal segment, wing-covers and apical portion of abdomen 

 slate-grey; eyes reddish-brown. Head almost globular, eyes 

 prominent, well round on the sides of the head; antennas thick, 

 standing out on either side; wing-covers oval, large. Abdomen 

 long, narrow, rounded at the tip, finely edged with short hairs. 

 Dorsal surface flattened; under surface pale yellow. 



Maskell has described and figured this species in detail in his 

 paper (6), so that I need not again go over the same ground. 

 He found this small, greyish-brown psyllid common upon the 

 foliage of blue gums (E. globidus) growing in New Zealand; and 

 he suggested that as this is an introduced tree in that country 

 the insects might be Australian. My specimens were obtained 

 in considerable numbers upon young seedlings in Purchase's 

 Nursery, Parramatta, and also in the Botanic Gardens, Sydney. 



Rhinocola revoluta, n.sp. 

 (Plates xi., tig. 12; xii., fig. 8; xiv., figs. 19-19«). 



The larva 1 form a very remarkable, double-valved, opaque white 

 lerp like a rounded, flattened oyster shell, about 2 lines in 

 diameter, placed along the edges of the young leaves of several 

 different Eucalypts; they are thin when first formed upon the 

 surface of the leaves, but as the actions of the feeding larvae 

 cause the leaf to become discoloured and curl up, the lerp-scales 

 assume a horizontal position and become packed in rows side by 

 side, rolled up in the enveloping leaf, sometimes as many as 

 twenty-four in a row; when few the lerp-scales are generally much 

 larger. When the larvae are ready to emerge the valves open at 

 the apex. 



Pupa short and broad, head thorax and abdomen yellow tinged 

 with green, the last darkest and banded with interrupted black 

 liars: legs and antennas yellow; wing-covers chocolate-brown. 

 Head broad, truncate in front; antennae rather short, standing 



