294 AUSTRALIAN PSYLLIDJE, 



not as wide as head, rounded in front, arcuate behind inner 

 margin of eyes, rounded on sides, deeply arcuate behind; dorsulum 

 small, rounded in front; mesonotum broadly heart-shaped. Legs 

 moderate, stout. Wings long, more than twice as long as broad, 

 slightly angulated at tip, similar in structure to S. eucalyjdi 

 except that the pterostigma is more slender and tapering, and the 

 cubital nervures more like those of S. inannifera. Abdomen 

 long, slender. Genitalia: (9) forming a slender tapering point on 

 last rounded abdominal segment. 



Hah. — Botany, near Sydney, N.S.W. (on Eucalyptus rohusta', 

 W. W. Froggatt). 



Thea olivacea, n.sp, 



(Plates XV., fig. 3; xvi., fig. 4.) 



Larva semitransparent; eyes, dorsal suture from head to base 

 of abdomen, transverse lines behind head, on thorax, and basal 

 segments of abdomen red; central portion of head, thorax and 

 base of abdomen tinted with yellow. Head as broad as thorax, 

 deeply lobed in front, sloping on sides to front of eyes; antennaj 

 5-jointed, pointed at tips; eyes warty, apparently formed of several 

 divided sections. Wing-covers forming rounded knobs on sides. 

 Abdomen constricted at base, rounded and sloping behind to a 

 truncate tip. 



Pupa varying in colour from pale to reddish-yellow; antennae, 

 eyes, two blotches on head, legs, wing-covers, a double row of 

 seven spots on either side of thorax, an interrupted bar on first 

 three and the whole of the apical segments of abdomen from dark 

 brown to black. Entire dorsal surface, legs and antennae clothed 

 with coarse hairs. Head large, rounded in front of eyes, truncate 

 behind ; antennae long, pointed at tips ; eyes flattened, hemi- 

 spherical. Thorax large, broad; wing-cases short, rounded; legs 

 short and thick. Abdomen large, rounded on sides, segmental 

 divisions distinct, irregularly rounded at aj^ex. 

 Imago. — Length 0*08, antennae 0-02 inch. 



General colour pale yellow to olive-green; head, pronotum, and 

 metathorax pale olive-green; antennae and legs dull yellow; eyes 



