288 
Psyche 
[December 
yellowish. Eye-spots pink. Several large sensoria on head, 
thoracic nota and the lst-6th abdominal tergites. A pair 
of large dorsal wax-plates on segments VI-VIII inclusive 
(strictly, on the inter segmental membranes). First wax- 
plate with three pores, in a row parallel to the long axis of 
the plate. Second and third plates also with 3 pores. An- 
tennae shown in Figure 2. 
Penultimate instar: (Figure 5, antennae, fig. 3.) 
Length, 6.4 mm. (measurement of a long-abdomen form, 
but the figure represents an individual with short abdomen) , 
white, the head and the other more strongly “chitinised” 
dorsal sclerites of thorax and abdomen yellowish. Sensoria 
more numerous and grouped as in the figure. On the wax- 
plates, extra pores have appeared as follows: — on first 
plate, 2 pores in a line parallel to long axis of body, and 
lateral to the original three; on the second, 3 such pores; 
and on the third, again two. Eyes larger and red. 
Last instar: (Figures 4, 6 and 7.) 
Length, 10.0 mm., colour as before, but the chitinised 
pieces a brighter brownish yellow. Large circular sensoria 
arranged as follows: 2 roughly parallel longitudinal rows 
on each side of disc of front, 2 or 3 on each side of disc of 
vertex, about 12 on expanded lateral border of pronotum, 
and 2 groups and a solitary one on each side of its disc; 
several scattered over tegminal pad, and a close row on its 
lateral margin ; 2 groups and a solitary one on each side of 
disc of mesonotum; several on wing-pad (fig. 6), and two 
groups and a solitary one on disc of metanotum (each 
side) ; a single transverse row along every abdominal 
tergite at least up to and including V; a close row of minute 
ones, 6 or 7, in a yellowish “chitinised” lateral sclerite 
(pleural?) at the lateral border of each of the three wax- 
plates. Posterior edge of metathoracic pleuron edged strong- 
ly with dark red. First wax-plate (fig. 7) with 3 single 
pores, in a transverse row followed by two longitudinal 
rows, the first with 2 and the second with 3 pores, making 
8 altogether ; second and third wax-plates like the first. The 
number of pores varies somewhat, however, even on the 
