PHORODESMA SMARAGDARIA, FABRICIUS. 171 
Pura.—(Described from an empty shell.) Surface dead, rugose, 
shagreened or spiny, the dorsal area of the hinder abdominal segments 
being covered with flattened spines pointing towards the anus. On 
the dorsal area of the anterior abdominal segments, the surface is 
shagreened, while on the head, prothorax, wing-cases, &e., the surface 
is rugose to a greater or less extent. The spiracles are very large and 
prominent—immediately i in front of the spiracles on the 2nd, 3rd and 
4th abdominal segments are the scars of a large larval tubercle elving 
rise to a large flattened and twisted hair, more developed in the 
specimen under examination on the 2nd and 4th abdominal segments. 
Probably these are the scars or rudiments of the specialised larval 
tubercles connected with the coat. Dorsal tubercles i and ii are present 
on Ist to 4th abdominal segments, i bearing a fairly long hair. Of 
the wings a small corner of the secondaries shows, near the junction 
of the primaries with the mesothorax, and a narrow slip also shows, on 
the 8rd and 4th abdominal seoments, extending just beyond the 
primaries. The dorsal area of the anal seement is prolonged beyond the 
anus, and flattened (not unlike the pupa of Papilio machaon) and bears a 
small group of longish spines ending in spirally curved hooks. These 
have a quantity. of silk entangled in them. The pupa is pale grey in 
tint, mottled, lined and dotted with dark umber-brown. The spiracles 
and dorsal tubercles show up as black spots. A diffused double medio- 
dorsal band is present on the anterior abdominal segments, and the wing 
neryures are strongly outlined in dark umber, almost black. The wing- 
cases extend to the end of the 4th abdominal segment, the tips of the 
third pair of legs to the end of the fifth ; the abdominal segments 5-6 
are telescoped to such an extent that the spiracles thereupon are hardly 
visible. 
In dehiscence the mesothorax splits along the central (median) 
suture. The prothorax or dorsal head-piece does the same, and also 
divides from the mesothorax and ventral head-pieces. The ventral head- 
or face-pieces, eyes, legs and antenna-cases, form a single shield. 
Descrretion or Prater VII. 
Fig. I, THe naa: a. Sideview. b. Edge. c. Apex. d. Markings more highly 
magnified. 
Fig. UW. Tsar tarva: First skin unclothed. 
Fig. TI]. Larvan Harrs: a. The 1st abdominal segment. 0. Part of the same 
more highly magnified, showing the “turf cutter and trumpet 
hairs.’ c. A hair from front of prothorax. d. A trumpet hair. 
Fig. TV. Larya sUst BEFORE HYBERNATION UNCLOTHED. a. The special tubercle. 
b. Dises and long hairs on lower part of some segments. 
Fig. VY. Larva saAME STAGE—CLOTHED. a. The special tubercle enlarged. », Dises 
and hairs enlarged. 
The food-plants of Pigrodeeus smaragdaria, Fab. 
By Rey. C. R. N. BURROWS. 
Since completing my paper on ane species, [ have been trying 
experiments with a view to clearing up in some measure the contradic. 
tions between the observations of Enelish and continental entomologists 
as to the food-plants. My remarks ‘apply, of course, to the lary in a 
state of confinement. 
On May 8th [I isolated eight larve, giving them Artemisia vulgaris 
and Achillea millefolium only. The latter plant it will be remembered is 
that given by Herr V. Muhlig and G. Koch, as the food of the Frankfort- 
on-the-Main larve. On May 10th Artemisia rulyaris was removed, 
