ANALOGIES OF THE COLEOPTERA. 115 



some aquatic or sub -aquatic form may eventually be 

 added to it ; and this alone would be quite sufficient to 

 establish an analogy to the Neuroptera. 



(112.) The analogies of the Hemiptera to all other 

 groups, whether of vertebrate or annulose animals, 

 may be traced through the foregoing exposition ; for, 

 if this is substantially true, it follows, as a matter of 

 course, that the Hemiptera, like the Ptilota, have their 

 prototypes among all circular series of animals : one 

 only of these will, therefore, be noticed, since every 

 experienced entomologist can now pursue this line of 

 inquiry. This comparison will bring the Hemiptera 

 into junction with the Coleoptera. 



Analogies of the Hemiptera to the Coleoptera. 



Families Tribes Tribes 



of the of the Analogies. of the 



Predatores. Hemiptera. Coleoptera. 



Cicindeli<Ue. C.m.c.des. [ ^oKTnVect^f '''"^ "P°"] Predatores. 



Caram.. Ccaoioes. [ ^^nti^Ul^^^ ""1 L-e'-«..cornes. 

 Dyticidis. Aleyrodes. ? Malacodermes. 



r Body short, oval; antennae T 

 SilpkidiE. Coccides. < monihform; frequently 5- Monilicornes. 



t apterous. J 



Stapkylinida. Aphides. ["^Sen "^"^ '""^ ^""^j Capr.cornes. 



We have merely added the first column, or that of 

 Predatores, to show the analogy between Thrips and 

 the StaphylinidcB, as noticed by Latreille. - Indeed, it is 

 so deceptive, that when these minute insects are seen 

 running upon paper (for they frequently fly into our 

 study at the very time we are writing), they look just 

 like their minute prototypes so common in summer. 

 The analogy between the cicadas and the lammellicorn 

 beetles is very strong, for the types of each feed upon 

 vegetable juices ; but this, of course, is not applicable 

 to the Carahidce, whose only relation to the Cicudides 

 consists in both being in the subtypical groups of their 



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