ACANTHODERES. | 141 
9, Acanthoderes nigritarsis. 
Acanthoderes nigritarsis, White, Cat. Long. Col. Brit. Mus. ii. p. 363. 
Hab. Mexico'!. 
10. Acanthoderes sallei. 
Psapharochrus sallei, Thomson, Syst. Céramb. p. 543). 
Hab. Mexico 1, Cordova (Saldé). 
11. Acanthoderes clericus. 
Latus, subdepressus, fuscus, nigro-piperitus elytrisque atro-fusco indistincte trifasciatis ; fronte lata et plana, 
infra oculos dilatata; thorace tuberculis lateralibus longissimis, acutis, dorsalibus conicis, validis lineaque 
dorsali angusta elevata, interstitiis punctatis; elytris postice modice rotundato-angustatis, apice breviter 
suboblique sinuato-truncatis, dorso breviter nigro-setosis, versus basin tuberculis parvis haud crebre 
asperatis, postice punctatis, utrinque obtuse costatis, costis ad basin multo magis elevatis; antennis ? 
curtis, setiformibus, atro-fuscis, articulis a 3° basi (3° et 4° medio annulatis) griseis, articulis apicalibus 
simplicibus angustis ; sternis latis, haud tuberculatis. 
Long. 8 lin. @. 
Hab. Mexico, Puebla (Sal/é). 
12. Acanthoderes doctus. 
Elongatus, convexus, griseo-fuscus, elytris nigro-punctatis, ante medium plaga cinerea, lituraque nigra M-formi 
pone medium et altera A-formi ante apicem ornatis ; antennis pedibusque rufescenti-fuscis carneo-griseo 
annulatis, illis articulis apicalibus linearibus simplicibus ; fronte magna, plana, infra dilatata ; vertice nigro- 
bipunctato ; thorace tuberculis lateralibus et dorsalibus validis, conicis (illis apice acutissimis) interstitiis 
pleurisque usque ad coxas grosse punctatis; elytris apice breviter transversim sinuato-truncatis, dorso 
obtuse costatis, costa utrinque versus basin curvata et elevata, punctis sparsis nigro-setiferis, versus basin 
tuberculatis ; mesosterno bituberculato ; pedibus longe hirsutis. 
Long. 83 lin. 9. 
Hab. Mexico, Juquila (Sallé). 
Closely allied to A. cylindricus of South Brazil, and having a similar large flattened 
forehead ; the clearly-traced, thin letter-like markings of the elytra amply distin- 
guish it. 
13, Acanthoderes sylvanus. | 
Robustus, minus elongatus, postice angustatus, purpurascenti-fuscus, nigro-punctatus, elytris utrinque ante 
-medium macula elongata obliqua cinereo-flava; antennis robustis, setaceis, nigris, articulis basi (3° et 4° 
quoque medio) cinereis; thorace tuberculis lateralibus magnis paulo antice curvatis, dorsalibus elongatis 
subcompressis apice crenatis, carinaque dorsali postice dilatata, interstitiis grosse punctatis; elytris sub- 
trigonis, apice fere recte truncatis, dorso utrinque carinatis, carinis versus basin curvatis et elevatis ; basi 
sparsim tuberculatis ; corpore subtus pedibusque rufo-tomentosis. 
Long. 8 lin. ¢. 
Hab. Mexico, Oaxaca (Sal/é). 
