( 592 ) 



remote, medio minutius, tegmentum ultimum abdominale sat dense, punctata ; 

 abdomen medio brunneo-i)ubesceus. I'ibiae anticae apice arcuatae ; femora postica 

 medium segmenti tertii abdoniinalis subattingentia. 



Ix)ng.* 10 mm., elytr. 11, lat. 5. 



This Hat and elongate species recalls the American genus I'tyclioderes. l)ut in 

 the form of the tibiae and the structure of the rostrum it is similar to Phlueupemmi 

 aciUicornis (Fbr.). 



Hob. Barram K., N. Hornoo (A. Everett coll.). 



2. Ptychoderes long^icollis sp. nov. 



S- 1'- elongatus, niger, antennis pedibusque ruhro-nigris ; infra luteo-albido- 

 pubescens, abdomine serie laterali macularum parvarum nigro-brunnearum signato, 

 femoribus uni-, tibiis bi-, brunneo-annulatis, prosterno medio glabro ; supra luteo- 

 griseo-pubesceus, brunneo-variegatus, prothorace lateribus disco \i.x obscuriore, macula 

 basali in utroipie latere brunnea, elytri.s basi, lateribus apiceque magis brunneis (juam 

 dorso, sinu mediano triangulari brunneo distincto. 



Eostrum breve, latitudine basali dimidio longius, supra fortiter tricarinatum, carina 

 media in fronte capitis etiam alta, profundissime quadri sulcatum ; scrobe antennarum 

 maximo. Antennae ( J ) corpore paulo longiores. Caput pone oculos dense punctulatum ; 

 infra ante prosteraum transverse punctulato-nigulosum, ad oculos grossissime 

 punctatum ; fronte utrimque vix carinata; oculis convexis, supra convergent ibu.s. 

 Prothorax valde elongatus, latitudine quarta parte longior, retrorsum leviter dilatatus, 

 dorso transverse rugatus, longitrorsum impressus, sed in imj^ressione longitudinaliter 

 distincte elevatus, hac elevatione antice lata minus conspicua, postice subcariuiformi 

 inipressionem bipartente ; carina antebasali utrimque leviter biflexuosa, in medio 

 laterum arcuata. Scutellum valde transversum, longitudiue fere dui)lo latius. Elytra 

 subconvexa, dorso utrimque juxta suturam longitrorsum angustis.sime impressa ; aj)ice 

 rotundato-declivia, obsolete tuberculata ; seriatim punctata, basi le\iter transverse 

 rugata. 



Prostemum dispersis punctis grossis, in latere paruni densius .sitis, instructum, 

 ante coxarum cavitates transverse sulcatum, tegmentum primum abdominale sine 

 gutta tomentosa. Femora postica abdominis segmenti quarti apicem attiugentia. 



Long. It) mm., rostr. 2^, elytr. 10, lat. 4^. 



Differs from the nearest allied species, P. obsoletus Jekel, in the much longer 

 prothorax, the short trunk with very large antennal grooves, the different form of 

 the prothoracic impression, the more sparingly punctured ijrostemum, and otlier 

 characters. 



Hab. Surinam. 



3. Ptychoderes brevis sp. nov. 



?. P. niger, pedibus obscuro-rubris ; dense subalbido-tomentosus, prothorace 

 macula parva in utroque latere basis sita elytrisque multis maculis minutissimis, 

 fribus in medio distinctioribus, nigris; elytrorum lateribus et parte anteapicali declivi 

 nigrescentibus, levissime olivaceis ; femoribus et tibiis macula nigra signatis. 



Rostrum breve, latitudine basali tertia parte longius. Caput breve, 1}0mc oculos 

 punctulatum; infra ante prostemum transverse rugulosum, ad ocidos punctulatum; 



• All species arc mcasiu'ed f lom tlm apex o£ the piolborax to 1 1 ,u tip o£ tlic pygidium. 



