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AGKA. 



249 



punctatis; elytris apice subflexuoso-truncatis, angulo suturali fere recto, exteriori dentato, dorso acute 



punctulato-striato, striis 2 a et 4 a punctis setiferis plurimis. 

 c? mesosterno et ventris omnibus segmentis medio, trochanteribusque posticis intus, dense pilosis. 

 § antennis art. 8° baud abbreviate. 

 Long. 10-12 millim. 



Hab. Panama, Bugaba, Volcan de Chiriqui (Champion). 



Allied to A. chlorocera (Chaud.) and A. brevicornis (Bates), but the thorax not quite 

 so densely and evenly covered with punctures as in the section to which these species 

 belong. The punctuation varies in some examples, leaving linear smooth spaces 

 almost as clear as in the section " thorace plagiatim punctato " of Chaudoir. The 

 colour of the elytra varies much, partly according to the maturity of the individuals, 

 the normal colouring being ferruginous with a coppery tinge behind and along the suture 

 towards the base, and dark purplish coppery on the sides and near the base, the base 



itself being more or less brassy green like the thorax ; in immature examples the ferru- 



ginous posterior part of the elytra is pale tawny, and the base and sides of the base 

 are golden green or coppery. This disposition of colours is similar to that seen in 

 A. fada, in which, however, they are much more sharply defined and brilliant. 



13. Agra semifulva. (Tab. XII. fig. 18.) 



A. rufiventri quoad colores simillima ; sed differt tborace lineatim grosse punctato, lineis longitudinalibus 



lsevibus, elytrisque apice utrinque breviter tridentatis. 

 Long. 13-16 millim. c? 2 . 



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Hab. Panama, Bugaba (Champion). 



Exactly similar in colour and general form to A. rufiventris, except that the antennae 



have the three basal joints brown (the second and third are sometimes a little dark in 



A. rufiventris). The species differs, however, in the punctuation of the thorax, which 



would bring it into quite a different section according to Chaudoir 's classification. The 



tridentate form of the elytral apex is caused by the flexuous truncature being much 



stronger than in A. rufiventris. 



Notwithstanding these important structural differences, it seems very probable that 



this is only a highly developed variety of the same species. 



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14. Agra fulvicauda. 



A. rufiventri et A. semifidvce affinis. Nigro-aenea, thorace et elytris viridi-seneis, his versus apicem indetermi- 

 nate fulvis, apice anguste nigro-marginato ; antennis (scapo excepto), abdomine et tarsis fulvis ; capite 

 post oculos brevi subquadrato, occipite medio lineola impressa utrinque unipunctato ; thorace fere sicut in 

 A. rufiventri modice dilatato, antice gradatim angustato, sat crebre punctato, spatio longitudinali utrinque 

 l&vi ; elytris apice flexuoso-truncatis, angulo suturali recto, exteriori dentato, dorso acute punctato-striato 

 (punctis versus apicem minoribus), interstitiis tertio et quinto punctis nonnullis majoribus (anterioribus 



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juxta strias secundam et quartam sitis). 

 $ antennis articulo 8° haud abbreviato. 

 Long. 11 millim. 



Hab. Nicaragua, Chontales (Janson). 



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One example only, apparently a female. 

 biol, centr.-amer., Coleopt., Vol. I. Pt. 1, December 1883. 2 kk 



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