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0. M. REUTER 
Platytylellus tristicolor. 
Elongatus, inferne ochraceus, superne cum antennis et pedibus 
niger, opacus, tenuissime cinereo-pubescens ; loris, apice excepto, sub- 
ferrugineis; strictura apicali, limbis lateralibus (sat anguste) fasciaque 
pone callos pronoti, nec non limbo costali hemielytrorum sat anguste 
subsulphurescenti-albidis, strictura apicali fasciaque pronoti nonnihil 
fumato-obscuratis ; antennis articulo primo capiti ab antico viso æque 
longo, secundo breviter nigro-pubescente, primo vix magis quam 3 A lon¬ 
giore ; tibiis breviter nigro-pubescentibus ; capite ( <j> ) ab antico viso 
latitudini cum oculis æque longo. 5 . Long. 7Vs, lat. 1 3 A mm. 
Bolivia: Mapiri, 1 sp. (Mus. Hung.). 
Platytylellus Howardi. 
Yalde oblongus, opacus, inferne totus ochraceus, solum epipleuris 
pronoti superne anguste nigris ; superne niger, tenuissime alutaceo- 
pubescens, genis, marginibus lateralibus frontis, limbo basali verticis 
stricfcuraque apicali pronoti ochraceis, hac medio late nigra ; oculis etiam 
feminæ sat magnis, granulatis ; rostro antennis pedibusque, coxis poste¬ 
rioribus exceptis, nigris ; antennarum ( <j> ) articulis duobus primis omnium 
subtilissime et brevissime pubescentibus, crassiusculis, primo diagonali 
capitis a latere visi paullulum breviore, secundo primo circiter triplo 
longiore et huic æque crasso, basin versus tamen nonnihil gracilescente ; 
tibiis adpressim nigro-pubescentibus, pilis excertis destitutis ; capite ab 
antico viso fortiter transverso, latitudine verticis oculique unici paullo 
breviore. 5 . Long. 7 3 A, lat. mm. 
Costa Rica: San Carlos, coll. Schild-Burgdorf (Mus. Washingt.), 
PL vittifronti (Stal) [ j =vitticeps Stal] affinis, corpore inferne 
ochraceo vel sanguineo, callis pronoti nigris, limbo ejus basali concolore 
nec sordide albicante, epipleuris pronoti superne angustius nigris, capite 
distincte fortius transverso divergens ; a Pl. luteicipite Stal corpore 
inferne toto ochraceo mox distinguendus. 
Platytylellus notatieollis. 
Oblongus, niger, opacus, hemielytris nitidulis, obsolete subtilissime 
punctulatis, tenuissime et brevissime griseo-pubescentibus ; pronoto et 
prosterno rufescenti-ochraceis, pronoto vitta media nigra percurrente, an¬ 
tice in strictura et inter callos angusta, dein in maculam subrotundatam 
ampliata, hac macula tertiam intermediam partem latitudinis pronoti 
