of three new Genera of exotic Coleoptera. 169 



ticos impressione parva longitudinali obliqua instructum. 

 Subtus genae utrinque porrectae, fossulas duas pro receptione 

 antennarum formantes. Oculi haud detecti, vel in fossulis 

 duabus longitudinalibus disci reconditi. Antennce brevissimae 

 geniculatae, sub marginem lateralem capitis insertae et in canali, 

 genis utrinque formato, insidentes, clavatae, 11-articulatae, 

 articulo basali magno elongato ovali, 2ndo parvo breviter 

 ovali, 3tio ad 9um brevissimis transversis, duobus apicalibus 

 magnis conjunct™ coarcte applicatis, clavam subsolidam 

 biarticulatam ovalem formantibus. Labrum sub clypeo ab- 

 sconditum transversum, angulis anticis rotundatis ciliatura. 

 Mandibulce breves, crassae, corneae, subtriangulares, sub 

 apicem incisae, et inde bidentatae. Maxillce parvae, extus 

 tuberculo porrecto (basin palporum defendente) armatae, 

 intus ad apicem lobis duobus distinctis longe ciliatis instructae. 

 Palpi maxillares lobis longiores in tuberculum parvum insi- 

 dentes, articulis duobus intermediis brevibus latis, 4to multo 

 longiori et subovali. Mentum subquadratum, basi parum 

 angustatum, iateribus in medio emarginato-incisis. Labium 

 breve, mento multo angustius, angulis lateralibus anticis 

 ciliatis. Palpi labiales minuti in scapos duos crassos breves, 

 cum facie externa labii connatos, insidentes ; articulis 1 et 2 

 minutis, 3tio longiori, apice subacuminato. Prothorax trans- 

 versa antice paullo angustior, Iateribus parum rotundatis et 

 recurvis, dorso in medio longitudinaliter elevato, carinisque 

 tribus gracilibus utrinque notato. Prosternum breve elevatum 

 subcuspidatum. Scutellum baud visibile. Elytra ovalia, 

 depressa, Iateribus acutis elevatis, medio elevato, singulo 

 carinis tribus carinis prothoracis continuis lineaque altera 

 tenuissima submarginale instructo. Aloe nullae. Metasternum 

 brevissimum. Abdomen utrinque marginibus inflexis ely- 

 trorum circumcinctum, 5-articulatum, segmentis sensim longi- 

 tudine decrescentibus. Pedes brevissimi, valde compressi. 

 Femora lata elongata ovalia. Tibice angustiores in femora 

 subtus, quiescentes, replicatae, calcaria minuta. Tarsi breves, 

 subtus setosi, anticis 5-(vel 4 ?) articulati, intermedii 4-(vel 5 ?), 

 postici 4-articulati, articulo penultimo praecedenti vix minori. 

 This is altogether one of the most anomalous genera hitherto 

 described among Coleopterous insects. At first sight it possesses 

 so strong a resemblance to the heteromerous genus Cossyphus, 

 that it was for a time regarded merely as a minute species of that 

 genus, for the outline of the head and pronotum are nearly con- 

 tinuous, so that it was not until a more careful examination was 

 made that the ordinary exposed condition of the head and its divi- 



