36 



BULLETIN 117, UNITED STATES NATIONAL MUSEUM. 



ElQ. 2.— SKMI-DIAGEAMMATIC REPRESENTATION OF THE RANGE OF HELIOCHERA, A VERY DISTINCT 

 COTINGINE GENUS RESTRICTED TO THE FORESTS OF THE HUMID TEMPERATE ZONE, WHICH HAS PRE- 

 SUMABLY BEEN DERIVED FROM A FOREST-INHABITING ANCESTOR OF THE HUMID TROnCAL ZONE AT THE 

 BASE OF THE ANDES. THE HUMID TEMPERATE ZONE FOREST, AND HENCE THE DISTRIBUTION OF THE 

 GENUS, IS DOUBTLESS LESS CONTINUOUS THAN IS HERE INDICATED. 



