Mr. F. Muir’s Notes on the Tessaratoma papillosa, 257 
In the adult the dorsal glands atrophise and a ventral 
gland arises with two openings near the anterior edge of 
the metathorax lateral of the coxal cavity. The ducts 
“Inctathorax 
dodominat 
st. segment | — 
Ss ECS a 
Riad oes 
Ord. . 
an 
‘ 
deride f 
basal a of W md 
2 
| a 
on View as 
Ee nt | 
ek 
ae 3 ee : 
a oy ay ea 
| Ord, Coxalp <3 ‘)et.dba. oe ; ee stink: gland : 
i + < : : < 2 : 
: SK i200: 
| 
I 
| 
aa : 
fe ta 
G S 
Stink-gland 
Ve tral View 
[2s Se 1 Cie ES Po Re eR aE RE Be Reale dG se a LL ec A a a 
leading from this gland, after passing between chitinous 
processes for the attachment of muscles, open into chambers, 
or reservoirs, with strong muscular walls. A valve is 
