90 LAMELLICOENIA. 



longioribus. Rufescenti-fulvus, capite medio thoracisque disco castaneo-fuscis ; capite striisque elytrorum 

 sicut in A. diminuto. 

 Long. 3 millim. 



Hab. Panama, Volcan de Chiriqui {Champion). 



23. Aphodius xanthus. (Tab. VI. fig. 19.) 



Parvus, convexus, glaber, nitidus, fulvo-testaceus, elytris flavo-testaceis, sufcura paullo obscuriore ; capite inermi, 

 medio leviter eonvexo, subtiliter sparsim punctulato, clypeo obtuse sinuato-truncato ; tborace sicut in 

 A. guatemalensi, angulis posticis distinctis sed obtusis basique prope angulum obliquo, recto, supra medio 

 lsevi, lateribus subtilissime punctulatis, punctis sparsis grossis intermixtis ; elytris subtiliter crenulato- 

 striatis, interstitiis usque ad apicem planis laevibus, striis l a -5 m prope apicem asquidistantibus nee abbreviatis; 

 tarsis posticis gracilibus ; oculis supra magnis. 



Long. 3 millim. 



Hab. Panama, Volcan cle Chiriqui, Bugaba {Champion). 



Many examples. Belongs to the A. rubeolus group, of North America. 



24. Aphodius bifrons. (Tab. VI. fig. 20.) 



Oblongus, minus convexus, nitidus, glaber (setis nonnullis prope elytrorum apicem exceptis), margine sparsim 

 longe setosus, flavo-testaceus, vertice tnoracisque disco leviter infuscatis ; capite piano, parce punctulato, 

 clypeo antice medio concavo, profunde sinuato et valde bidentato, dentibus latis et recurvis, genis nullo 

 modo prominentibus : tborace sparsim et regulariter punctato, angulis posticis rotundatis : elytris subtiliter 

 crenulato-striatis, interstitiis alutaeeis parce punctulatis, striis prope apicem minus impressis; tarsis 

 posticis gracilibus ; antennis flavo-testaceis ; oculis supra magnis. 



$ . Tibiae anticae intus flexuosse. 



Long. 4| millim. 



Hab. Mexico, San Pedro in Coahuila (Dr. Palmer), Villa Lerdo in Durango (Hoge). 



A highly peculiar species, but fitting best this group than any other yet indicated in 

 the genus. The base of the thorax is very finely margined on the extreme edge, but 

 the inner edge of the exceedingly fine groove turns off in a curving plica before reaching 

 the hind angle. 



b. Gence acutely pointed. 



(Group including the European species A.rufipes, A. depressus, A. luridus, and others.) 



25. Aphodius fuliginosus. (Tab. VI. fig. 21.) 



Aphodius fuliginosus, Harold, Berl. ent. Zeitschr. 1863, p. 327 \ 



Hab. Mexico x . Guanajuato, Puebla (Salle), Oaxaca (Salle, Hoge), Refugio in Durango 

 (Hoge). 



Many examples, including the types of Von Harold. A specimen from Oaxaca is 

 figured. 



26. Aphodius hogei. 



A.fuliginoso affinis ; paullo minor, sat anguste oblongus, niger, nitidus, elytris livido-castaneis, subnitidis ; capite 

 fere lsevi, genis plus minusve productis, acutis, tborace medio basi lobato subtiliter sparsim (lateribus antice 



