318 Rev. II. Clark on Dejean's Genus Coelomera. 



24. M. fuscescens. 



31. parallela, crebre punctata, fuscescens, antennis et tibiis nigris ; 

 caput longitudinaliter foveolatum, leviter rugosum ; thorax trans- 

 verse evidenter depressus, rugosus ; elytra subtiliter pubesccntia ; 

 antenna nigrre ; corpus subtus et pedes flavescentia. 



Long. corp. lin. 4£ ; lat. lin. 2£. 



Bolivia. 



25. M. nigricornis. 



31. robusta, parallela, crebre punctata vel rugosa, lsete pallide rufa, 

 antennis et tarsis nigris ; caput rugosum ; thorax vix transverse 

 sed evidentius juxta latus utrinque depressus, crebre punctatus ; 

 scutellum subquadratum ; elytra thorace multum latiora, robusta ; 

 antennae robustse, nigrse ; corpus subtus rufo-flavum ; pedes rufo- 

 fusci, tibiis et tarsis nigris. 



Long. corp. lin. 4 ; lat. lin. 2\. 



Bogota. Conspicuous by its bright pale-red coloration. 



26. M. atricornis. 



31. robusta, parallela, crebrius punctata, flava vel flavo-fusca ; caput 

 longitudinaliter foveolatum, punctatum ; thorax punctatus ; elytra 

 parallela; antennae robustse, paulum versus apicem incrassatse, 

 nigrse, art. 1° rufescente ; corpus subtus rufum; pedes rufi, tibiis et 

 tarsis interdum fusco-nigris. 



Long. corp. lin. 3^ ; lat. lin. If. 



This species may be easily separated from M. nigricornis by 

 its smaller size, its more depressed and more parallel form, and 

 its flavous (not rufous) colour. 



Jacquelin du Val has described (in the f Histoire de Pile de 

 Cuba/ Insectes, p. 304) a " Coelomera " which I am unable tore- 

 cognize: the description, unfortunately, omits all notice of the an- 

 tenna?, and otherwise is somewhat imperfect. It is not a Dircema. 

 Probably it is a species of Monocesta, this genus being the only 

 one which extends northwards as far as the United States : — 



" Coelomera opacipennis. 



" C. oblonga, testacea ; elytris brunneis, opacis, pube subtili brevis- 

 sima sericeis, margine reflexo pectoretjue medio nigro-cvaneis ; 

 thorace valde transverso, medio transversim impresso, basi sinuato, 

 angulis posticis acutiusculis. Long. 6| millim. Cuba." 



Genus XII. Coelomera, Erichs. ; Chev. Dej. Cat. ed. 3. 399; 



D'Orbign. Diet. Univ. d'Hist. Natur. iv. 75 ; Erichson, 



Conspectus Ins. Peruan. p. 104. 



Generi Monocestce, ut bic definito, affinis ; differt (ut a Dom. 



Erichson indication est) in antennis ; art. 1° elongato, 2° brevi, 3° art. 



primo multum longiore, 4° primo oequali, 5°-l l m velut art. secundus 



