CONTENTS, 



i 



Introduction xl 



BiBLIOORAFHT 1 



Descriptions of oenkra and species of fossil butterflies 



Nborinopis 9 



1. Ncorinopls sepultA 14 



Lethites » 34 



2. Lethites Reynesii 37 



ECOONLA >....> 40 



3. Eagonia atava 41 



Mtlotiiiutes > 44 



i. Mylothrlles Pluto i 45 



Coliates 51 



6. Collates Proserpina 52 



Pontia 53 



6. Pontia Freyeri 54 



THAfTES > 67 



7. Tlialtcs Rnminlaoa 60 



TBANATrncs 62 



8. Ttianatltes vctula > 63 



PAMPnlLITES 66 



9. Pamplillltes abdlta 68 



Comparative aob of fossil butterflies 70 



Probable food plants of tertiary Caterpillars 71 



Present distribution of buttbhflibs most nearly allied to fossil species . 76 



General RfauM^, with notice of undetermined forms 83 



Fossil Insects erroneously referred to BirrrERFLiBS 88 



Explanation of the plates and wood cuts . . . » 97 



