HEMIPTERA HETEROPTERA. 
45 
NUDIROSTRA. 
The great multitude of generic names that have been lately applied to 
the tribe of Nudirostra are here noticed, but being in many cases an 
incumbrance they are kept somewhat in subordination, and are considered 
as divisions and not as genera. 
A. Antennas long. Alticornia. 
a. Head forming a neck behind the eyes. Nudi- 
collia. 
* Head shorter than the prothorax. Humigradi. 
f Fore coxae short. Brevicoxae. 
| Joints of the antennae inserted in the preceding 
joints before the tips of the latter; fourth 
joint thick. Ramicornia. - 
|| Joints of the antennae inserted in the preceding 
joints at the tips; fourth joint setiform. 
Caulicornia. 
§ Fore tibiae and (most often) middle tibiae with a 
spiny furrow at their tips beneath. Spongi- 
pedes. 
X Head more or less elongated or triangular in 
front of the eyes. Autenniferous tubercles 
slightly prominent. 
o Head more or less elongated in front. Eyes 
not usually very prominent. 
Scutellum not bifid at the tip. 
++ Transverse furrow of the prothorax near the 
hind border. - - - - 
Transverse furrow of the prothorax near the 
fore border. - 
Scutellum bifid at the tip. - 
oo Head transverse. Eyes very prominent or 
peliolated.- - 
XX Head truncated in front. Antenniferous 
tubercles very long and prominent. 
§§ Fore tibiae and middle tibiae with no spongy 
furrow. Siccipedes. 
X Head triangular, more or less elongated in 
front. Conocepsi. 
o Thorax not tumid. 
-+ Ocelli very wide apart. Fore tarsi very small, 
received into a notch of the fore tibiae above. 
H — i- Ocelli more or less approximate. Fore tarsi of 
the usual length, not received into a notch 
of the fore tibiae. 
++ Claws of the tarsi compressed ; a tooth at their 
base. 
Body oval. Abdomen dilated, broader than the 
fore wings. - 
Body elongated, nearly linear. Abdomen not 
usually broader than the fore wings. 
1. Holoptilide. 
2. PiRATIDE. 
3. Reduvide. 
4. Ectrichodid.®. 
5. Macropide. 
6. Salyavatide. 
7. Apiomeride. 
8. Harpactoride. 
9. Zelide. 
