Rev. H. Clark on Dejean's Genus Coelomera. 315 



XXXV. — An Examination of the Dejeanian Genus Coelomera (Co- 

 leoptera Phytophaga) and its Affinities. By the Rev. Hamlet 

 Clark, M.A., F.L.S. 



[Continued from p. 268.] 



Genus Monocesta. 



Division B. 



Species of smaller size ; in form more robust, short, and parallel ; 

 elytra not postmedially dilated; thorax with the transverse 

 depression more obsolete; antennce shorter, more robust, and 

 slightly incrassated. Species 13-26. 



Section I. 

 Elytra black, or fuscous black, or dark green. Species 13-19. 



13. M. obliquenotata. 



M. robusta, lata, satis parallela, rugosa, leviter pubescens, purpureo- 

 fusca, thorace humeris fascia obliqua et corpore subtus rufo-flavis; 

 caput leviter punctatum ; thorax transverse depressus, lateribus 

 mediis angulatis, punctatus, rufo-fiavus, macula utrinque insu- 

 lata magna nigro-fusca ; scutellum subtriangulare, impunctatum, 

 flavum ; elytra robusta, subrugosa, purpureo-fusca, humeris et 

 fascia obliqua (a sutura ad margines postmedios tendente) atque 

 etiam sutura et apice (obsolete) rufo-flavis ; antennce fuscse, art. 1° 

 2° et 3° infra flavescentibus ; corpus subtus rufo-flavum ; pedes 

 rufo-fusci. . 



Long. corp. lin. 6 ; lat. lin. 3. 



Amazons. Collected by Mr. Bates. 



14. M. cincta. 



M. lata, robusta, subparallela, subtilissime pubescens et rugosa, 

 nigro-fusca, thorace elytrorum fascia corpore subtus femoribusque 

 flavo-fuscis ; caput ad frontem foveolatum ; thorax lateribus ad 

 medium angulatis, disco depresso, subtiliter punctatus, rufo -flavus, 

 disco medio nigro ; scutellum subtriangulare, impunctatum, flavum; 

 elytra robusta, subparallela, leviter rugosa, opaca, nigro-fusca, 

 fascia media recta marginibus et tenuiter sutura flavis ; antenna 

 fuscse, art. 1° et 2° flavo-fuscis ; pedes fusci, femoribus flavis; 

 corpus subtus rufo-flavum. 



Long. corp. lin. 6 ; lat. lin. 3. 



Amazons. Collected by Mr. Bates. 



15. M. cpectanda. 



Jf. robusta, parallela, subtilissime rugosa, rufo-flava, elytris (margini- 

 bus exceptis) viridescentibus ; caput ad basin foveolatum, minute 

 punctatum, rufum, macula triangulari basali fusca ; thorax trans- 

 verse depressus sparsim pubescens rufo-fiavus, disco medio fusco 



