412 SYSTEM OF INSECTS. 
SAVIGNY. 
MANDIBULATA. HavustTELLATA. — 
Neuroptera \ { Lepidoptera 
Ascalaphus " U Papilio 
Hymenoptera \ Diptera 
Eucera  U Tabanus 
Orthoptera \ Homoptera 
Locusta L.  U Cicada 
Aptera \ Aphaniptera 
Nirmus " U Pulex. 
Macleay. 
Trichoptera .......... Lepidoptera 
Hymenoptera ....... Diptera 
Coleoptera ............ Aptera 
Orthoptera ............ Hemiptera 
Neuroptera .......... Homoptera. 
K. ann S. 
Coleoptera ............ Hemiptera Leach 
Orthoptera............ Hlomoptera Leach 
Neuroptera........... Lepidoptera 
Hymenoptera ......... Diptera. 
In these two last columns, you see, I differ little from 
M. Savieny: I merely exclude the Aphaniptera as 
forming an osculant Order, and I have added the Co- 
leoptera and Heteropterous Hemiptera for reasons I shall 
soon assign. From Mr. MacLeay I differ more widely, 
which has resulted from our different ideas as to the 
mode of tracing analogies; his theory leading him to the 
