LEPIDOPTERA 
39 
LABORATORY STUDY 
The adult monarch butterfly has the body divided into head, thorax, 
and abdomen. How do these parts compare in size with the same 
regions in the grasshopper? Compare 
the legs and wings with those of the 
grasshopper. Which of these two in¬ 
sects is better adapted to flying? To 
jumping? Draw the entire animal. 
Draw wings and legs. 
Gently rub the finger on the wing, and 
as the dust comes off, the wing looks more 
like the wing of a fly or bee. The lines 
that run lengthwise of the wing are the 
veins. Draw the wing. 
The mouth parts of the butterfly are 
united into a single long tube which is 
the coiled tongue-like structure, called 
the proboscis (pro-bbs'Is). Unroll it and 
see how its length compares with the 
length of the body. The butterfly uses 
the proboscis to suck nectar from flowers. 
Compare these mouth parts with those 
of the grasshopper. 
26. Lepidoptera. — The Lepi- 
doptera (lep-i-dop'ter-a: Greek, 
lepido-, scaly; pteron, wing) in¬ 
clude the familiar moths and 
butterflies. Some of the members 
of this order, such as the adult 
peach-tree borer, look more like 
wasps than like moths. There are 
more harmful insects in the order 
of Lepidoptera than in any other 
order. Among the particularly 
destructive members are the in¬ 
sects which are commonly called 
codling moths, gypsy moths, 
Figure 23. — Cecropia Moth. 
A , larva; B, pupa; C , co¬ 
coon ; D, adult. How does 
this form of metamorphosis 
differ from that shown by the 
life history of the grasshopper ? 
