Eev. H. Clark on Dejean's Genus Ccelomcra. 267 



North American continent : it is found in Illinois, Maryland, 

 and Virginia; in the latter State it is so abundant that it often 

 entirely strips the Curylus americanus, on which it feeds. 



8. M. depressa. 



M. late ovalis, valde depressa, flava, antennis, elytrorum marginibus 

 et apice necnon corpore subtus nigris ; caput longitudinaliter foveo- 

 latum, leviter punctatum ; thorax valde ad medium transverse 

 depressus, impunctatus ; scutellum flavum ; elytra lata, valde de- 

 pressa, late marginata subtiliter rugosa, subpubescentia, flava, 

 apice et marginibus late uigrescentibus ; antennae nigrae, art. l°-3 m 

 flavis ; corpus subtus nigrum ; pedes flavi. 



Long. corp. lin. 5-| ; lat. lin. 3|. 



I am indebted to Mr. Baly for this species, received by him 

 from the river Magdalina. ' 



9. M. Balyi. 



M. late ovalis, nigra, thorace, capite, elytrorum basi et femoribus 

 anticis rufo-flavis ; caput leviter longitudinaliter foveolatum, im- 

 punctatum ; thorax late transverse depressus, lateribus ad medium 

 subangulatis, impunctatus ; scutellum impunctatum, rufum ; ely- 

 tra ampliata, late marginata, subdepressa, rugosa, opaca, nigra, 

 basi tenuiter fulvescente ; antennae fusco-nigrae, art. l°et 2° flavis ; 

 corpus subtus nigrum ; pedes nigri, femoribus anticis rufo-flavis. 



Long. corp. lin. 7 ; lat. lin. 4. 



Brazil. 



10. M. elegantula. 



M. pallide purpurea, thorace maculisque 4 elytrorum flavo-pubes- 

 centibus ; caput ad basin foveolatum ; thorax omnino flavo 

 pubescens ; elytra macula utrinque magna media, alteraque minore 

 circulari ad apicem flavo pubescentibus ; antennae rufo-fuscse ; 

 pedes et coipus subtus fusco-purpurea. 



Long. corp. lin. 5 ; lat. lin. 3. 

 Brazil. 



11. M. Hopfneri, Dej. Cat. 



M. subparallela, crebre punctata vel rugosa, testaceo-flava, tibiis, 

 tarsis et antennis nigris ; caput leviter longitudinaliter foveolatum; 

 thorax transversus, sub quad ratus, transverse modice depressus, 

 lateribus rotundatis, crebre et fortiter punctatus ; scutellum sub- 

 triangulare, subpunctatum ; elytra thorace latiora, subrugosa vel 

 crebre punctata ; antennae sat elongatae, nigrse ; co/pus subtus 

 fuscum ; pedes flavo- fusci, tibiis et tarsis nigris. 



Long. corp. lin. 5 ; lat. lin. 2^. 



M. Hopfneri may be distinguished not only by its flavous 

 coloration, but by its thorax, which is less deeply transversely 

 depressed, and coarsely and closely punctate. 



Mexico. 



