0R1SMOL0GY. 321 
conical, and the base of the cones forms the point 
of union. — Ex. Trechus. Plate XXVI. Fig. 8. 
14-. Heteromorphous (Hcteromorphi). When the two 
intermediate joints are vastly larger than the first 
and the last. — Ex. Cerocoma $ . Plate XXVI. 
Fig. 2. 
e. tongue (Lingua). 
1. Linguiform (Linguiformis). When the tongue is 
quite distinct from the labium, usually retracted 
within the mouth, short and shaped something 
like a vertebrate tongue. — Ex. Gryllina, Libellu- 
lina. Plate VI. Fig. 6, 12. e'. 
2. Liguliform (Liguliformis). When it emerges 
from the labium, is short, flat, and not concealed 
within the mouth. — Ex. Vespa and many Hymeno- 
ptera. Plate VII. Fig. 2. e'. 
3. Tubulose (Tubulosa). When it emerges from the 
labium, is long and tubular, and capable of infla- 
tion. — Ex. Apis. Plate VII. Fig. 3. e' 
4. Setiform (Setiformis). A short minute sharp tongue 
discoverable between the scalpclla of a promuscis. 
—Ex. Cimex L. Plate VII. Fig. 14. e' 
5. Palatiform (Palatiformis). When the tongue 
forms the inner surface of the Labium, but is not 
separate from it. — Ex. Most Coleoptera. 
vi. NOSE (Nasus). 
1. Included {Inclusus). When the nose is included 
between the two sides of the Postnasus which run 
towards the upper lip. — Ex. Geocorisce. 
2. Vaulted (Fornicatus). When the nose is elevated, 
convex and hollow underneath. — Ex. Vespa. 
VOL. IV. Y 
