-iSS On Aquatic Curnicorous Coleoptera or Di/tiscidce. 



elytris crebre fere sequaliter punotatis, serie discoidali punctorum fere nulla. Lonj?. 

 Al, lat. 2 m.iu. 



Mas, tarsis anterioribus et intermediis fortiter dilatatis ; tibiis interniediis intus 

 curvatis, medio incisura parva, parte basali teiiui, apicali lata. 



This species is also very closely allied to Celina aculeata, but is less elongate, 

 and the base of the thorax is more thickly puncturel in the middle. The mucro 

 at the extremity of the body is here quite short, but I am not sure but that is 

 partly owing to the retraction of the aedeagus. 



South America, (Santa Rita, September, 1850, Sahlberg). .598. 



G53. Celina picea, n. sp. — Suboblonga,elongata, angustula, pernitida, glabra, picea, 

 pedibus rufis ; antcnnis baud elongatis testaceis ; j^i'othorace paululum punctato ; 

 elytris parce punctatis, sod puuctis ad apicem paulo crebrioribus, serie punctorum 

 discoidali distincta ; corpore apice breviter mucronato. Long. 4i, lat. 2 m.m. 

 , }fas, tarsis anterioribus et intermediis bene dilatatis ; tibiis intermediis abrupte 

 curvatis, medio incisis. 



The thorax in this species is quite without punctuation in the middle at the base, 

 ■and even the anterior marginal punctures become obsolete in the middle. The 

 bending of the male middle tibia is so extreme, that the basal portion is nearly at 

 right angles with the apical portion. 



South America, (Petropolis, March, 1850, Sahlberg). 559. 



C54. Celina crassicornis, n. sp. — Suboblonga, sat elongata, angustula, nitldn, 

 glabra, picea, pedibus rufis ; antennis testaceis, brevibus, crassiusculis, articuli.s 

 penultimis latitudine longitudine fere tequali; prothorace paululum punctato; elytris 

 parce subtiliter punctatis, sed punctis ad apicem paulo crebrioribus, serie puiutorum 

 discoidali sat distincta. Long. 4, lat. vix 2 m.m. 



Mas, incognitus. 



This species is closely allied to Celina picea, and it possibly may be only the 

 female thereof, but it is less elongate, and has the antennae shorter and thicker, 

 and the punctuation of the elytra is rather finer. 



South America, (Petropolis, March, 1850, F. Sahlberg). GOO. 



: 655. Celina bonvouloiri, n. sp. — Suboblonga, elongata, angustula, nitida, glabra, 

 rufescens, elytris paulo obscurioribus ; prothorace paululum punctato; elytris parce 

 subtiliter punctatis, ad apicem fere impunctatis, stria discoidali distincta. Long. 



4, lat. H m.m. 



Mas, tarsis anterioribus et intermediis fortiter dilatatis ; tibiis intermediis 

 curvatis, medio incisura parva, parte basali tenui, apicali lata. 



