272 AUSTRALIAN PSYLLIDjE, 



median suture. Face lobes short, broad at base, rounded at apex. 

 Antennae very short, springing up in front of eyes ; 1st joint 

 broad, stout; 2nd cylindrical, short; 3rd longest; 4th-5th long; 

 6th-9th very short, rounded; 10th shortest. Eyes very large, 

 projecting, reniform viewed from above: central ocellus small, 

 close to base of face lobes; lateral ocelli small, close to upper 

 edge of QjQ^. Thorax : pronotum rather large, uniform in width, 

 reaching to hind margin of eyes, with an impressed spot on either 

 side; dorsulum nearly truncate in front, rounded behind; meso- 

 notum broad, convex, deeply arcuate in front, rounded at 

 extremities; scutellum small. Legs long, slender, hairy, spines 

 on apex of hind tibiae numerous. Wings more than twice as long 

 as broad, narrow at base, broadly rounded at tip; j^rimary stalk 

 stout; stalk of subcosta very long; subcosta acute, running into 

 costal, forming no cell or stigma; radius short, parallel, turning 

 up slightly at tip; stalk of cubitus short, upper branch of cubitus 

 long, straight, upper fork curving downward, lower fork nearly 

 as long as upper, lower branch rather long, upper fork arched, 

 curving round in a half circle, lower fork turning inwards; clavus 

 stout, clavical suture slender. Abdomen short, stout. Genitalia: 

 {$) lower genital plate short, rounded ; forceps short ; upper 

 genital plate large, broad at base, coming out into a horn-like 

 point at apex : (5) short, upper and lower valves coming to a 

 point, slightly turned up at tip. 



//a6. —Brisbane, Queensland (on Conyza viscidula; H. Tryon). 



The eggs are scattered about among the hairs on the underside 

 of the leaves of this plant, of a deep yellow colour, and more 

 pointed than usual. I have a very fine series of this curious and 

 very distinct species from Mr. Tryon, who says "it is rather 

 common in the neighbourhood of Brisbane." 



iv. Subfamily TRIOZIN.S:, F. Loew, 



Front of head either swollen or produced into two conical 

 processes; eyes more or less prominent. Stalk of cubitus wanting; 

 vein forking directly from junction with subcosta. 



