118 Dr. Chapman on some neglected points 
LEPIDOPTERA-HETEROCERA. 
A.—OBTECT A.—Pupa smooth and rounded, externally solid, inner 
dissepiments flimsy. Free segments in both sexes 
5th and 6th (abl.). Never emerges from cocoon, or 
progresses in any way. Dehiscence by irregular frac- 
ture. 
4.—Macros.—Larva with hooks of ventral prolegs on inner side 
only. (Exposed feeders.) Sphinges, Bombyces, Nolide, 
Nycteolide, Noctuina, Geometre. 
2.—Pyraloids.—Larva with complete circle of hooks to ventral 
prolegs. (Concealed feeders.) Pyrales, Phycide, Eudo- 
ride, Crambide, Gelechide, Plutellide, Gicophoride. 
(Epigraphiide, Alucitide.) 
3.————?.—Doubtiul whether Pyraloids or of separate (classifi- 
catory) value. Hyponymeutide, Argyresthide, Coleo- 
phoride. (Perittia?), (Hlachistide ?). 
B.—INCOMPLETA.—Pupa less solid and rounded, appendages often 
partially free. Free segments may extend upwards to 
3rd (abdominal). 7th always free in male, fixed in 
female. Dehiscence accompanied by freeing of seg- 
ments and appendages previously fixed. (Except in 1) 
pupa progresses and emerges from cocoon. 
14.—Pupa attached by cremaster. Free segments. 4567. 456. 
Pterophorina. 
2.—Pupa free to move and emerge from cocoon. 
a.— Larva concealed feeder, often miner, and usually rather 
active when not cramped by mine. 
1.—Free segments. 56. 567. Lithocolletide, Gracilariide. 
2.—Free segments. 456. 4567. 
a.—TinEai (Tineide, Psychide, Sesiide). 
b.—Torrrices (TLortricina, Cossus, Exapate, Simethis). 
(Castnia.) 
3.—Free segments. 3456. 34567. 
a.—ZEvzERA and Heptauus tend to lose 3rd as a free seg- 
ment (are gaining it as a fixed segment ?). 
b.—TISCHERIA. 
c.—ADELIDH. Ovipositor (of imago) formed for piercing 
plant-tissues. 
d.—Nepticuntip®. Antenne separate from head in dehis- 
cence, 
