Larva cylindrical, segmental incisions shallow; thoracic legs well developed; ventral prolegs on segments 3, 4, 5, these and anal prolegs possessing crochets arranged in a lateral penellipse enclosing a transverse series, all uniordinal. Skin thickly covered with microscopic triangular points, except in tubercular areas, which are bare save for setae. Alpha is a smaller seta than beta, and is situated above and in front of the latter in all segments excepting 9, where it is below; on mesothorax and metathorax and segment 9 it occupies a common tubercular area with beta, rho also being included in this area in the latter segment; rho is placed below epsilon on the thoracic segments, epsilon being absent in 9; eta is directly above kappa in prothorax, but below and in front in remaining thoracic segments, where kappa is closely associated with theta caudad; pi is normal; tau is a varying group as shown; sigma is normal. Several minute subsidiary setae appear as shown in fig. 16. The Cocoon. (Plate 68. figs. 1–3.) Two (occasionally three) leaves are cemented together with silk around their outer margins, two opposing leaves, one on either side of branchlet, being chosen; their bases close to stems are first connected and gradually drawn together with silk, then the opposing margins. Should the leaves be more than usually difficult to draw together, the stem of one will be partly cut. In most cases leaves at ends of branchlets were chosen (see Plate 68, fig. 1). A fine thin cylindrical cocoon is constructed, slung like a hammock across the interior between the leaves, usually in the direction of the long axis (Plate 68, fig. 3). The silk is exceedingly fine and strong; is at first white but becomes later pale brown. Length, 6–7 mm.; diameter, 1.5–2 mm. Anterior end attached to surface of one of the leaves near, but never at, the attached margin; here, just prior to pupating, larva prepares a small circular exit, the leaf being eaten away till only the thin transparent outer cuticle remains. Besides the cocoon the space between the leaves contains a variable amount of dry frass-granules, mostly collected to one side of cocoon and more or less adherent to it. Cast larval skin remains within cocoon. The Pupa. (Figs. 21, 22.) Cylindrical, extremities bluntly rounded; abdomen slightly attenuated caudad from fifth segment; free movement in male between 4–5, 5–6, 6–7, in female between 4–5, 5–6. Ventral aspect: Head—cutting-plate small and non-serrate; eye only slightly overlapped by antenna; a small area representing maxillary palp separates lower margin of eye from cephalic extremities of first and second legs; a small seta on either side of clypeus near caudo-lateral angle; mandibular area well defined; labial palpi narrow: maxillae broad above, meeting in mid-line below labial palpi, they pass beneath the first legs and reappear lower beyond caudal extremities of these latter, terminating just beyond second legs; femora of first legs encroach upon lateral margins of upper third of maxillae; first legs extending from maxillary palpi above to about level of junction between fourth and fifth abdominal segments, meeting in mid-line in their lower fourth they here overlap maxillae; second legs occupy interval between antennae and first legs, extending from maxillary palpi above as far as or slightly farther than caudal extremities of maxillae; third legs occupy mid-line from caudal extremities of maxillae and second legs to junction of seventh and eighth abdominal