Maskell. — On Psyllidae m New Zealand. 167 



distinctive. The pupa is not unlike that of T. fiavipcnnis, 

 Forster, but the wing- venation differs from that species. 



In 1878, having then no knowledge of Pst/llidce, I mistook 

 the pupa of T. pcllucida for some new kind of Coccid, although 

 I recognised some characters removing it from that family. I 

 now restore it to its proper place. 



Trioza panacis, sp. nov. Plate XII., figs. 1-12. 



Adult female of a bright, vivid, green colour, the thorax 

 slightly patched with light-yellow ; eyes red, ocelli yellow ; 

 genitalia tipped with light-brown ; femora green, tibiae and 

 tarsi yellow ; antennae yellow, the last joint and the extreme 

 tips of the others brown ; wings hyaline, with the faintest 

 possible brown tinge. Length of body rather less than lin. ; 

 expanse of wings fin. Head broader than long, depressed in 

 front and produced beneath into two moderate roundly- 

 conical processes. Eyes prominent, minutely facetted ; 

 ocelli two. Eostrum cylindro-conical. Forewings elongated, 

 the ends rounded ; costal margin regularly convex, dorsal 

 margin very slightly concave as far as the junction with the 

 cubital vein ; primary stalk of veins one-fourth the length of 

 the wing ; stalk of the subcosta (fig. 3, hd) two-fifths of 

 the length of the primary stalk ; radius convex at two- thirds 

 of its length towards the costal margin, and reaching the 

 margin at about seven-eighths of the length of the wing ; cu- 

 bitus forking directly from the subcosta, its upper main 

 branch convex towards the costal margin, and forking at 

 rather more than three-fourths the length of the wing, the 

 upper secondary branch joining the margin exactly at the tip, 

 the lower at rather less distance than the radius ; the lower 

 main branch of the cubitus forks a little below the middle of 

 the wing, with one longish, very convex branch, and one 

 shorter and nearly straight ; the distances between the points 

 of junction of the margin with the radius and with the cubital 

 branches are about equal. In the three areas formed by the 

 cubital branches there are three short triangular marks spring- 

 ing from the margin, and composed of minute oval spots. 

 There are some exceedingly minute spiny hairs on all the 

 veins. Hindwings normal, presenting no special features, but 

 slightly punctate. Antennae of ten joints — the first two short, 

 thick, smooth, and equal ; the rest very slender, and nume- 

 rously ringed ; the third is the longest, the remainder gradu- 

 ally decreasing ; the last is widely dilated, and bears two 

 unequal spines. Legs slender; the tibia bears a few spines at 

 the tip. Genitalia bivalve, the valves not contiguous at their 

 tips ; the tips are rather bluntly rounded, and the hairs on 

 the dorsal side are longer than those on the ventral surface ; 

 ovipositor slender. 



