ERRATA. 



Some typographical and clerical errors having crept into 

 the first part of this Monograph the student is requested to 

 make the following changes: 

 Page 224, h\ for cylindrical read elliptical. 

 Page 225, line 7, for absolutely read obsoletely'. 

 Page 237, after description of 67. zimmefmaum, add, Habitat. 



Southern States. 

 Page 239, lines 14 and 15 should read, Habitat. Western slope 



of the Sierra Nevada. Montana. (Wickham). 

 Page 242, line 6, after Habitat., add, Mississippi Valley, 



south of 36". 

 Page 266, last line, for Sauley read Saulcy. 

 Page 268, II, for wide read nude. 

 Page 271, line 2, for front read fourth. 

 Page 271, line 12, for albinica read albionica. 

 Page 294, Hne 6, for impunctuate read impunctate. 

 Page 294, line 17, for trigma read trigona. 



In the explanation of Plate VI., Figs. 13 and 15 are trans- 

 posed; read therefore: 

 Fig. 13, Chennium {Aiinus) monilicorne. 

 Fig. 15, Tniesiphorus costalis. 



