26 REV. T. A. MARSHALL — OORTNODTNORUM RECEXSTO. 



several modifications of tlie typical form, which render their further 

 subdivision necessary, it is intended in the following paper to pro- 

 pose a few sections, in which their mutual relations may be more 

 adequately expressed. We shall also be enabled, through the 

 kindness of the Eev. Hamlet Clark, to register for the first time 

 many species hitherto unnamed, or only provisionally placed in 

 collections under the MS. names of Dejean and others, as well as 

 some of the nondescript rarities brought from the islands of the 

 far East by Mr. Wallace. 



A few words upon the literature of the group, comprising their 

 history up to the present time, will not be considered out of place. 

 One species only appears to have been known to Linne, Chryso- 

 chares {ClirysocTius) Asiaticus, which was placed by him in the 

 great genus Chrysomela. Fabricius first described some forms of 

 the genus Corynodes or Platycorynus, arranging them in his earlier 

 works under Cryptocephalus, and in the ' Systema Eleutheratorum ' 

 under JSumolpws. The seven Eabrician species are as follows : — 



Eumolpus nitidus (Corynodes, Hope) .... Siam ; Malabar. 



Asiaticus, Linn. (Chrysochares, Moravitz) . S. Russia. 



cyaneus (Corynodes) W. Africa. 



pretiosus (Chrysochus, Redt.) Europe. 



auratus (Chrysochus) United States. 



— — compressicornis (Corynodes) S. Africa. 



antennatus (Corynodes) Java. 



Olivier, in his ' Entomology,' redescribed the Fabrician species, 

 mistaking however cyaneus, Fab., for a different insect, and added 

 four others : hifasciatws (China), cyanicollis (Java), Senegalensis 

 (W. Africa), and Chrysis (Bengal) ; but of these Senegalensis is 

 doubtless only a variety of compressicornis, Fab. Chevrolat, in 

 Dejean's Catalogue and in d'Orbigny's Dictionary, first separated 

 from Mumolpus the two genera Platycorynus and Chrysochus, 

 but left them both undescribed. The former has since been 

 briefly characterized by Hope, Coleopt. Man. pt. 3. p. 162, and 

 more completely by Grerstacker in Peters's Eeise naeh Mossam- 

 bique, p. 335, under the name Corynodes. Chrysochus*, so far 

 as it refers to the European species, has been pretty fully de- 

 scribed by Moravitz, Horse Soc. Ent. Eossicae, t. i. 1861, p. 159, 

 with the addition of Chrysochares, to contain C. Asiaticus, Linn., 

 and also by Eedtenbacher in the * Fauna Austriaca.' Nine species 



* Chrysochus, not ChrysMchus, as wrongly spelt in Schaum's Catalogue. 

 The derivation (given by Chevrolat) is from xpvaoxoos or xpvffoxovs, 'a gold- 

 smith,' and not xpuerovxos, ' having gold,' ' golden.' 



