ZOOLOGICAL GEOGRAPHY. 
[part III. 
56 
South American genera being found here. There are also a few 
peculiar genera, as, Drucma (Satyridse); Microtia (Nymphalidse); 
Eumceus (Lycaenidee) ; and Eucheira (Pieridse). Clothilda 
(Nymphalidae) is confined to this sub-region and the Antilles. 
The majority of the genera range over the whole sub-region 
from Panama to Mexico, but there are a considerable number, 
comprising many of the most characteristic South American 
forms, which do not pass north of Costa Eica or Nicaragua. Such 
are Lycorea , I tuna, Thyridia, Callithomia, Oleria and Ceratina , 
•—all characteristic South American groups of Danaidse ; Prono - 
phila and Dynastor (Satyridse) ; Protogonius , Pycina, Prepona , 
Nica, Ectima and Colcenis (Nymphalidse) ; Eurybia and Metho- 
nella (Nemeobiidse) ; Hades , and Panthemos (Erycinidae). 
Colcoptera. — These present some interesting features, but 
owing to their vast number only a few of the more important 
families can be noticed. 
Cicindelidse. — The only specially Neotropical genera recorded 
as occurring in this sub-region, are Cteno stoma and Hiresia , both 
reaching Mexico. 
Carabidae. — Several genera are peculiar. Molobrus is found 
in all parts of the sub-region, while Onycliopterygia, Phymato- 
cephalus, and Anisotarsus are Mexican only. There are about 20 
South American genera, most of which extend to Mexico, and 
include such characteristic Neotropical forms as Agra, Callida, 
Coptodera , Pachyteles , Ardisiomus , Aspidoglossa , Stenocrepis, and 
Pelecium. 
Lucanidse. — Of this important family there is, strange to say, 
not a single species recorded in Gemminger and Harold’s cata- 
logue up to 1868 ! It is almost impossible that they can be 
really absent ; yet their place seems to be, to some extent, 
supplied by an unusual development of the allied Passalidse, of 
which there are five South American and six peculiar genera, 
Cetoniidm. — -All the larger South American genera extend to 
Mexico, which country possesses 3 peculiar forms, Ischnoscelis , 
Psilocnemis, and Dialithus ; while Trigonopeltastes is character- 
istic, having 4 Mexican, 1 Brazilian, and 1 North American 
species. 
