DESCRIPTION OF PLATE J. 
Fig. 1.— Colaenis julia, female. Apex of abdomen with protruded 
stink-glands, seen from above, about 5 times natural size. W, stink- 
gland ; K, club. 
Fig. 2.— Colaenis [Metamorjpha] dido, female. A, stink-club in fresh 
condition; 15 ; 1. B, the same cleaned, 15 ; 1. C, scales from club, 90; 1. 
Fig. 8.— Heliconius ajpseudes, female. Apex of abdomen, lateral 
view, with the stink-gland artificially forced out, 15 ; 1. W, stink-gland. 
K, club. B, scales from club, 90 ; 1. 
Fig. 4.— Heliconius besckei, female. A, head of stink-club, cleaned, 
45 ; 1. B, scales of same, 90; 1. 
Fig. 5.— Heliconius eucrate \narcaeoi\, female. A, fresh stink-club, 
15 ; 1. B, head of same cleaned, 45 ; 1. C, scales of same, 90; 1. 
Fig. 6.— Eueides isabella, female. A, stink-club from a freshly 
emerged insect, 15; 1. B, head of same, 45; 1. C, scales of same, 
90; 1. 
Fig. 7.— Dione juno, female. A, a fresh stink-club, 15; 1. B, the 
head, cleaned, only a few of the appendages shown, 90; 1. 
Fig. 8.— Dione vanillae, female. A, a stink-club, 15; 1. B, thorn- 
like scales from same, 90; 1. 
