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134 



ADEPHAGA. 



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mandibulis longissimis, rectis; thorace ovato, marginibus postice explanato-elevatis, angulis posticis 

 rotundatis ; elytris absque striis, marginal! excepta. 



" Long. 3 j lin." 



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Hab. Nicaragua, Chontales (Belt) l . 



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Var. Thorace antice paullulum latiore elytrisque obsolete punctulato-striatis. 



Hah. Panama, Bugaba (Champion). 



Agrees with the type species D. Icevissimus, from South Brazil, in being destitute of 



all trace of striae, except the 



ghth 



which lie in a broad marginal g 



with a convex interstice interrupted by the usual large marginal punctures 



Th 



riety has the same form of thorax, with the 



pti 



that it is a 



little 



broader anteriorly. Having only a single specimen each of variety and 



impossible to decide whether these differences are specific or not. 



form 



2. Diploharpus mexicanus. 



Drimostoma mewicanum, Chevrolat, Mag. Zool. 1841, pi. 64 \ 



Hab. Mexico \ Cordova (Salle), Jalapa, Oaxaca (H'oge). 



Besides the eighth and ninth stria? this species has a rudiment near the apex of the 

 seventh, strongly incised, abruptly terminated anteriorly, and separated from the eighth 

 a narrow convex interstice. 







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3. Diploharpus perpolitus. (Tab. VI. fig. 1.) 



D. striolato simillimus, sed differt thoracis angulis posticis hand productis. Inter minores, subseneo-niger poli- 

 tissimus, palpis, antennis pedibnsqne melleo-fnlvis ; mandibulis modice elongatis, apice magis falcatis ; 

 thorace transversim subcordato-quadrato, postice modice angustato, lateribus ante angulos posticos sub- 

 rectos perparum sinuatis, margine postico late explanato sed mhrime reflexo ; elytris subopalescentibus, 

 striis 3 vel 4 interioribus plus minusve adumbratis, striola septima apicali profunda. 



Long. 2\ lin. 



Hab. Guatemala, El Tumbador, Las Mercedes (Champion). 



MIZOTKECHUS 



Mizotrechus, Bates, Ent. Monthly Mag. 



Restricted to the typical species 



which the above-cited 



pplies), this g 



generic diagnosis only 

 guished from Diploharpus and Perigona by its elongated 



parallelogrammical form of body, short, thickened 



and fully-developed elytral 



striae. The elytra at the apex are obtusely rounded, or obliquely but obtusely truncated 

 the eighth and ninth striae lying, as in the rest of the subfamily, in a marginal groove 

 which continues to the sutural angle. 



1. Mizotrechus novemstriatus. (Tab. VI. fig. 2.) 



Mizotrechus novemstriatus, Bates, Ent. Monthl. Mag 



199 



Hab. Nicaragua, Chontales (Janson). — South America, Amazons 



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