72 MUSEO NACIONAL DE BUENOS AIRES, 
coris, pedibusque migris vel piceis, alis fuscis, anticis sigmate 
flavo, cellulis cubitali 1.2 transverse, discoidali-postica bas, 
contra venam transverso-cubitalem 2% et paululum contra 
costam pone stigmatem hyalinis. Long.: 11 mm. Terebra: 
10 mm. 
Politus, facie punetulato-rugulosa, longitrorsum in medio paulum 
elevata, genis modice longis, lineis parapsidalibus distinetis, abdomine 
segmento 1. polito, area media posticem versus punetis 2 sat obsoletis 
impressis, segmento 2.” area media longe triangulari dimidio basali sat 
lata, dimidio apicali angustiore, apicem segmenti haud attingente, 
impressionibus discalibus antice acutis, in medio haud dense et irre- 
eulariter punetatis, posticem versus modice elevatis, margine interiore 
striato, margine exteriore dimidio antico vix striolato, dimidio postico 
sat impresso, linea antero-laterali ante medium segmenti cum laterali 
congruente, segmentis 3.-6 basi striatis, politis, sed 3.” disco irregula- 
riter, in medio densius punctato. area antero-laterali medium versus 
elongata et postice striata. 
1 Y de Mendoza.—Col. Mus. Nac. Buenos Aires. 
Iphiaulax puber Bretnes, n. sp. 
Q Ruber, capite, antennas, sterno, coxis, pedibus 4 anticis (tarsis 
excepte) el valvis terebrae migris, palpis, abdomine el pedibus 
posticis sat obscure ferrugincis, alis fuscis, anticis stigmate 
flavo, cellulis cubital 1.2 transverse, discoidali-postica basa, 
contra venam transverso-cubitalem 2.2 et paulum contra cos- 
tam pone stigmatem hyalinis. Long.: 10,5 mm. Antennae: 
11 mm. Terebra: 5,5 mm. 
Politus, facie punctulato-rugulosa, genis mediocribus, lineis pa- 
rapsidalibus distinetis, abdomine segmento 1.2 polito, area media 
posticem versus punctis 2 impressis notata, impressionibus longitu- 
dinalibus internis externisque transverse striatis, segmento 2. trans- 
verso, area media triangulari vix apicem segmenti attingente, im- 
pressionibus discalibus antice acutis, sparce irregulariter punctatis, 
posticem versus modice elevatis, margine interiore et exteriore (dimi- 
dio antico) striatis, linea antero-laterali in medio cum linea laterali 
congruente, inter eas spatio punetulato, segmentis 3-5 basi striatis, 
politis, 3.2 disco irregulariter punctato, area antero-laterali medium 
versus paulum elongata et postice striata. 
1 Y de Monte Caseros.—Col. Mus. Nac. Buenos Aires. 
