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ADEPHAGA. 





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A species still more elongated than H. angustus of California, and further distin 

 gnished by the remarkable incurvation of the hind margin of the thorax on each side, 

 by which the angles (obtuse at their apices) appear produced; the sides are very 

 slightly incurved before the angles, and very slowly but considerably rounded from the 

 middle forwards. 



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3. Hypherpes tseniola. 



H. angusto similis. Parvus, angustus, parallelogrammus, castaneus, nitidus ; capite angusto, foveis frontalibus 

 parum impressis ; oculis parvis, vix prominentibus, genis post oculos minime tumidis elongatis ; palpis 

 apioe gradatim angustatis, subacutis, maxillaribus compressis ; thorace elongato-quadrato, ante medium 



rotundato-dilatato, angulis anticis a colic- distantibus acutis, posticis rectis vel subacutis, 

 margine basali utrinque recto, fovea basali utrinque lineari hevi ; elytris bumeris dentatis, acute 

 punctulato-striatis, striola scutellari obsoleta, interstitiis usque ad apicem planatis, puncto umbilicato 

 ad striae septimsc apicem, altero multo majore ad octavse apicem. 



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Long. 3^ lin. £ . 



Hah. Guatemala, Quiche Mountains (Champion). 



Differs from H. angustus by the hind margin of the thorax being rectilinear on each 

 side to the posterior angle, and the anterior angles being distant from the sides of the 

 neck, by which the anterior curvature of the sides is not so strongly pronounced ; also 

 by the flattened interstices of the elytra, and much more pointed terminal joints of the 

 palpi. The large apical puncture or fovea of the eighth stria is of great size* and 

 open behind. 



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4. Hypherpes ampliatus. 





In hoc genere brevis, elytris postice paullo dilatatis et convexis; niger, nitidus, antennis, palpis et tarsia 

 piceo-rufis; capite ovato, genis circa oculos sat tumidis elongatis, oculis parvis baud prominentibus; 

 tborace latius quadrato, fere sicut in H. ametJiystino, angulis posticis rectis haud extantibus, margine basali 

 utrinque paullulum obliquo, dorso laevissimo, versus angulos posticos planato, fovea basali utrinque 

 elongata ; elytris oblongis, postice paullo dilatatis, sed apud basin baud angustatis, bumeris sat rectis 

 dentatis, argute et valde striatis, interstitiis modice convexis, stria marginali baud duplicata. 



Long. 4| lin. § . 



Hab. Mexico, Jalapa (Flohr). 



Of shorter and less parallelogrammic form than the rest of the genus; but the 

 elytra, although relatively short and gradually (but slightly) dilated behind ( $ ), have 

 not a subovate shape as in II. adorns, the base being relatively broad, and the lateral 

 meeting the basal margin at an angle only moderately obtuse. 



PLATYSMA. 



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Platysma, Bonelli, Obs. Ent. i. 1809, tabl. synopt. 



Pterostichus, § Platysma, Schaum, Naturgeschichte Ins. Deutschl. i. 1, p. 464 (1860); Crotch, 



Check List N. Am. Col. p. 14 (1874). 

 Bothriopterus, Chaud. Bull. Mosc. 1838, i. p. 14. 



A small group, to which modern authors refuse generic rank, consisting of a limited 























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