III. Holetra, Herm . ( continued ). 
Ixx 
DIV. III. ARTICULATA. 
ORDER IL~- Trachearee ( continued ). 
Family. 
/ 
Tribe. 
Genus. 
Sub genus. 
Example of Species. 
l - . } T. holosericeum, Fab. 
2. Erythraeus, Latr. E.Phalangioides, Latr. 
3. Gamasus, Lat. . . G. marginatus, Lat. 
4. Chelyetus, Lat. { AC Schr a nk UditUS ’ 
5. Oribata, Latr. 
6. Uropoda, Lat. . { Ac ™ s „ ve « etans > De 
7 - 
; 
Acarus, 
Fab... 
8. Bdella , Lat. 
I. Acarus, L . . i 
\ 
\ G6er 
prop, f Acarus domesticus, De 
\ Geer 
f Acarus longicornis, 
’ ' \ Lin. 
n c, ... T . f Acarus sambuci, 
Sni3<ndiSj Lett « Sdirstnk. 
10. Ixodes, Lat. . . . .Acarus ricinus, Lin. 
11. Argas, Lat. . . . .Ixodes reflexus, Fab. 
12. Elyais, Lat. .... Atax extendens, Fab. 
13. Hydrachna, J Atax geographicus, 
Lat \ Fab. 
14 ' . } Acarns Lin - 
15. Caris, Lat C. vespertilionis, Latr. 
, n T T . ( Acarus autumnalis, 
16. Leptus, Latr. . j shaw 
17. Aclysia, Aud . . . . A. du dytique, Cuv. 
18. Atoma, Latr. . { Acaru^pamsi&us, De 
19. Ocypete, Leacli. .0. rubra, Leach 
