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144 



ADEPHAOA. 







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antice valde rotundato-dilatato, prope basin sinuatim angustato, margine tenuissimo, sulco basali punctu- 

 lato, cannula prope angulum sat elevata ; elytris ntrinque quinquestriatis, striis usque ultra medium 

 subgrosse punctatis, suturali solum ad apieem extensa, 2 a -4 m multo abbreviatis, 5 a brevissima. 



Long. -| lin. 



Hab. Mexico (Salle) ; Guatemala, San Geronimo (Champion). 





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MIOPTACHYS. 



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Genus Trecko prima facie simillimum. Corpus glabrum. Caput ovatum ; oculi parvi, minime prominentes. 

 Frons lsevis, foveis curtis parum impressis distantibus. Palpi articulo subulato sat elongate Antennae 

 robustse, moniliformes, articulis 4°-10 m rotundatis. Thorax quadratus, marginibus lateralibus sequaliter 

 explanatis intus sulculo a dorso separatis, sulculo intus versus basin acute earinato-marginato. Elytra 

 ovata, basi angusta (margine basali arcuato), humeris lenifcer rotundis, apice late obtusa, striis (suturali 

 postice excepta) vix impressis, striola recurva recta elongata submarginali, puncto setifero dorsali unico 

 longe post medium sito. Tibiae anteriores apice extus oblique truncate. 

















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An interesting genus, partly bridging over the difference between Tachys and the 







blind genera Anillus and Scotodip 



It differs from the latter, besides the presence 



of eyes, in the glabrous surface of the body and the long terminal joint of the palp 



Motschulsky may have described one of the species as a Polyd 

 cies of Poly 'deris are true Tachyes, and his definition of the group, ' 



but 



rebordes seulement en arriere," quite excludes the Miojptachys here described 



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1. Mioptachys trechoides. (Tab. VI. fig. 6.) 



Obion go -ovatus, subdepressus, rufo-testaceus, antennis, palpis pedibusque pallidioribus ; capite post oculos 

 parum angustato ; thorace quadrato, postice paullulum sinuato-angustato, angulis posticis deflexis acutis, 

 posticis exstantibus acutissimis, carina postico-laterali elongata acuta: elytris obsolete striatis, stria 

 suturali postice acutius insculpta. 



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Long. 1 lin. 



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Hab. Guatemala, Totonicapam (Champion). 



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2. Mioptachys oopteroides. 



Latius ovatus magisque convexus, castaneo-rufus vel fuscus, antennis, partibus oris pedibusque fulvo-testaceis ; 

 thorace breviore, subtransversim quadrato, post medium modice (subsinuatim) angustato, angulis rectis, 

 carina postico-laterali minus acute elevata ; elytris late ovatis, utrinque striis tribus sat conspicuis, suturali 



postice solum profunde insculpta. 

 Long. | lin. 



Hab. Guatemala, Totonicapam (Champion). 



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3. ? Mioptachys breviusculus 



leris breviuscula, Motschulsky, Etud. E 















Hab. Panama, 



Judging from the character given by the author, " oculis minutis, vix prominulis 



conclude this species belongs to the present 



tainly does not belong 



Polyderis, according to the auth 

 not differing from Tachys proper. 



definition, the typical species of that group 

















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