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ADEPHAQA. 







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As far as at present known, this genus is restricted to Tropical America. The species 

 much resemble the Hypolithi of the Old World in form and sculpture, and are distin- 

 guishable almost solely by the edentate mentum. 







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1. Athrostictus sericatus. (Tab. III. fig. 25.) 



Athrostictus sericatus. Bates, Proc. Zool. Soc. 1878, p. 592 \ 



"Latior, oblongus, niger, omnino punetulatus, breviter erecte fulvo-pubeseens ; antennis, palpis et tarsis 

 obscure rufescentibus ; tborace transversim quadrato, postice yix angustato, angulis anticis haud pro- 

 minulis, posticis fere rectangulis, lateribus paullulum arcuatis ; elytris laete aureo-sericeo relucentibus, 

 fortiter striatis, interstitiis densissime punctato-granulatis ; corpore subtus nigro nitido, opalescente, 





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; 









punctulato. 



" Long. 6| lin. 2 . 



?? 



Hal. Mexico, Vera Cruz (Boucard 



i 



Hog 



Cordova, Playa Vicente (Salle), Las 



Vigas, Jalapa (Edge), Tehuantepec (Sumichrast) ; Salvadok (Salle) ; Guatemala, Yzahal 

 (Salle), Senahu (Champion) ; Nicakagua, Chontales (Janson). 



Closely allied to A. chlamioides (Dejean) of Venezuela. 







2. Athrostictus opalescens. 



Athrostictus opalescens, Bates, Proc. Zool. Soc. 1878, p. 592 l . 



" Oblongus, piceus, breviter erecte pubescens ; labro, palpis, antennis et pedibus rufo-fulvis ; eapite et tborace 

 nitidis, elytris opalescenti-micantibus ; eapite postice punctulato; tborace quadrato, lateribus fortiter 

 arcuatis, angulis posticis fere rotundatis, basi late subrugose punctulatis ; elytris apice leviter sinuatis, 

 exarato-striatis, interstitiis minute crebre granulatis, 3° et 5° indistincte seriatim punctatis ; corpore 

 subtus nigro, laete opalescente ; metasterno punctulato. 



"Long. 4 lin. rf ? » 











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Hab. Panama (Salvin). 



Apparently closely allied to A. paganus (Hypolithus paganus, Dej 



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absence of allusion to the strong iridescent gloss 

 the conclusion that the species is really the same. 



m 



Dej 



descript 



but the 

 forbids 



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AMBLYGNATHUS. 







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Ambly gnathus , Dejean, Sp. Gen. Col. iv. p. 62. 



A genus closely allied to Selenojphorus, but sufficiently distinguished by its extremely 

 broad epistome, the anterior margin of which is arcuated, and by the mandibles being, 







to an unusual extent, concealed by the labrum in repose 

 America ; six species only have as yet been described. 



It 



Tropical 



1. Amblygnathus mexicanus. 



wphoro flavipedi simillinms, at differt prseter characteres genericos, thoracis angulis , posticis omnino 

 rotundatis, elytrorumque interstitiis planis et striola scutellari elongata. Niger, opalescens, antennis, 

 palpis pedibusque fulvis, labro fulvo vel fusco fulvo-marginato ; thorace lateribus arcuatis, angulis posticis 





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