185 



Prosternum inter pedes anticos protensum, de- 

 pressum, postice dilataturn, subrugosuni. Mesos- 

 ternum antice bifurcatum. 



Habitat in America Meridionali. 



To this genus belong Cassida palliata of Fa- 

 bricius. C. Strigata of HofFmansegg, and Bipla- 

 giata Mihi. The last insect 1 have lately received 

 from Colombia, and to the above various other 

 species might be added, most of them being as yet 

 undescribed. Cassida carbonaria of Klug will pro- 

 bably at some future time be regarded as the type 

 of a sub-genus allied to Oxynodera. 



CmRoscELiDiE, Gory. 

 Chiroscelis, Lamarck. 

 Type of the Genus Tenebrio Digitatus Fab. 



A description and figure of this insect will be 

 found in Erman's Reise urn die Erde, Vid. Table 15, 

 fig. 1 1 ; as the specimen there delineated appears 

 to have been dwarfish, scarcely exceeding 14 lines 

 in length, I have some doubts if it is really the 

 insect alluded to by Fabricius. Dr. Leach, in the 

 article Entomology, of the Edinburgh Encyclopaedia, 

 at page 100, describes Chiroscelis as having its 

 anterior tibiae palmated or dentated externally ; he 

 intended to say internally. The locality given is 

 New Holland, which also appears to be erroneous, 

 as Fabricius is right when he states it to be from 

 Sierra Leone. It seems that the Bifenestra of 

 Lamarck and Digitatus of Fabricius are only sexes 

 of one species ; the anatomical details of both are 



2b 



