from North America and Brazil. 143 
the European type in size or intensity of colour, yet I do not 
consider the difference sufficient to justify their separation, 
especially since the superficial sculpture (so important in deter- 
mining the species of this family) remains the same. 
Trichopteryx Schaumii, n.sp. Pl. V. fig. 1. 
T. rufo-castanea, nitidissima, convexa, pilis brevibus sparse vestita, 
tuberculis nullis; pronoto validissime dilato ; elytris brevibus, 
valde attenuatis; abdomine elongato. Long. corp. 3 lin. 
Caput modicum, sat elongatum, leviter remoteque punctatum, 
nitidissimum, palpis atque antennis flavis, his ad apices fusces- 
centibus. 
Pronotum validissime dilatatum, elytris permulto latius ; angulis 
anticis productis, acutis; margine posteriore arcuatao, angulis 
latis, valde elongatis, partem quartam elytrorum amplexis ; ni- 
tidissimum, punctis minutis, longe segregatis notatum, margini- 
bus lateralibus atque angulis posticis dilutiortbus. 
Scutellum magnum, triangulare, elongatum, fortiter punctatum, aut 
potius asperatum. 
Elytra brevia, validissime attenuata, fortius ac seriatim punctata 
vel asperata, apicibus rectis; lete rufo-castanea, ad suturam 
dilutiora. 
Abdomen elongatum, valde attenuatum, segmentis sex apertis, mo- 
dice punctatum. 
Pedes \zte flavi. 
Subtus castanea; ore, coxis atque segmentis ultimis abdominis 
flavis. 
Habitat Americam septentrionalem, exemplo unico in Louisiana 
capto. 
Species preeclara, distinctissima, ab omnibus facillime cognita. 
Trichopteryx glabricollis, Matthews. PI. V. fig. 2. 
Trichopteryx rotundata, Haldeman. 
T. nigra, nitida, elytris rufo-piceis, brevis, lata, valde convexa, tu- 
berculis nullis, pilis pallidis sparse vestita. Long. corp. vix 
2 lin. 
Caput magnum, latum, indistincte leviter punctatum, nigrum; an- 
tennis pallide flavis, ad apices fuscescentibus. 
Pronotum latum, quam convexissinum, levissime punctatum, pos- 
tice sat dilatatum, angulis valde productis elytrorum humeros 
tenaciter amplexis ; nigrum, angulis posticis piceis. 
Scutellum magnum, triangulare, nigrum, profunde asperatum. 
Elytra brevia, quadrata, fortius asperata, rufo-picea, sutura dilutiore. 
Abdomen \ongius exsertum, rufo-piceum. 
Pedes pallide flavi. 
Subtus castanea; ore, coxis atque apice abdominis flavis. 
Habitat Americam septentrionalem, in provincia New York capta. 
Heec species forma rotundata, convexissima differt ab omnibus 
