guiomologists 
a i 
JOURNAL OF VARIATION. 
Wot, 2D, IN@s fe Juny 1st, 1900. 
Phorodesma smaragdaria, Fabricius (with Plate). 
By Rev. ©. RB. N. BURROWS. 
(Concluded from p. 154.) 
The larva in hybernating stage or one inoult later (pl. vil., fies. 4-5), 
The spiracles are clear and distinct j in the unclothed larva; af large size, 
dark mahogany-brown with raised chitinous walls; that on the pro- 
thorax is rather lareer than those on the remaining segments ; in 
position the spiracle on the prothorax is about midway between dorsal 
and ventral margins and close to the posterior margin of the segment. 
On the Ist pbdoninall segment the spiracles are situated midw ay upand 
towards the anterior margin, the special tubercle (figs. 4a, 5a) not quite 
so far aboye the spivacle as ill (Supraspiracular), ‘and slightly posterior 
to the latter. On the 2nd abdominal segment the spiracle 1 is well wp 
towards the dorsal area, and still slightly towards the anterior margin; 
tubercle iii is only a short distance above and to the front of s spiracle ; 
the special tubercle is slightly higher up than tubercle ii and rather 
more posterior than ili is anterior to the spiracle. On 3) 
abdominal segment the spiracle 1 is slightly higher up than on #1 
i (supraspiracular tubercle) is still anterior to, and only very sli ghtly 
above, the spiracle ; the special tubercle is shehtly hicher above iii 
than it was on the 2nd abdominal segment, and is nearly midway 
between the spiracle and the posteri or margin of the seement. On 
the 4th abdominal segment the positions are almost the same as on 
the 8rd, but the spiracle is just a trifle lower and iii a trifle higher 
above it, than on the 8rd abdominal segment, the special tubercle is 
slightly more posterior. On the 5th abdominal segment there is a 
very marked change—the spiracle has dropped until it is only slightly 
nearer the dorsal than ventral margin, tubercle iii is almost ver tically 
above the spiracle, whilst the special tubercle is well below the pit rcle 
almost in the same plane with vy (one of the subspiracular tubercles) 
which is nearly in vertical line beneath the spiracle, and well posterior 
to the spiracle, and almost directly above iv. On the 6th abdominal 
segment the spiracle is almost exactly central, the dorsal Pore il 
is well outside and only slightly behind i, tubercle ni Js irectly 
above the spiracle and nearly in perpendicular line be ahi il, iv 
has moved up directly posterior to spiracle, v is dean below and 
slightly posterior to spiracle; there is no special tubercle on this 
segment. On the 7th abdominal segment the positions are not greatly 
