Doctrine of Affinity and Analogy. 107 
the maxille*: though with respect to these last, I believe their 
primary use in very many insects is to hold the food for the 
action of the mandibulæ. 
Mimeta CHINENSIS. 
Tan. III. Fig. 4. 
Long. corp. lin. 9. 
Habitat in China. Ex Mus. D™ Crane. 
Corpus glaberrimum, luteo-virens, colore sub luce mutabili, 
subtus cupreo tinctum. Caput supra antice punctis con- 
fluentibus rugulosum, postice punctis sparsis conspersum, 
interque puncta creberrima minutissima, vix sine lente 
forti conspicua, subtus fulvum. Antenne fulve. Thorax 
punctis sparsis punctulis minutissimis interjacentibus ut in 
capite. Elytra subrugosa, puncto-striata: striis interme- 
diis per paria ordinatis, interstitiis punctatis et punctulatis- 
simis ut in thorace, &c., apice gibba. 
The insect I shall now describe is of a different order: and 
though it does not so strikingly assume the characters of another 
tribe or genus; yet, as it appears to partake of those of both 
Agrion and Lestes, exhibiting the general appearance and wings 
of the former, with some diagnostics of the latter, it seems not 
improperly introduced. 
AGRION BRIGHTWELLI. 
Nigrum: alis basi, in altero sexu apice macula, sanguineis. 
TAB. HI. fig 5: 
Long. corp. unc. 21. 
Expans. alar. unc. 23. 
Habitat in Brasilia. Ex Mus. D. Brightwell. 
* TAB. III. Fig. 4. d. 
P2 Corpus 
