BRETHES: HIMENÓPTEROS DE LA AMÉRICA MERIDIONAL. 67 
Iphiaulax saltensis BRETHES, n. sp. 
Q Niger, palpis, pedibus anticis a coxis, medis a basi femorum 
flavo-testaceis, alis dimidio basali flavidis, anticis stigmate 
flavo et fascia transversa etiam flavida. Long.: 13 mm. An- 
tennae: 13 mm. Terebra: S mm. 
Politus, facie polita, punctulata, antice spatio semilunari impune- 
tato, genis mediocribus, lineis parapsidalibus distinetis, abdomine 
segmento ].* polito, normali, segmento 2.” area media longe triangu- 
lari, impressionibus discalibus anticem versus gradatim humilioribus 
et antice modice arcuatis, margine interiore 2/3 segmenti attingenti- 
bus. linea antero-laterali nulla, segmento 3.” basi in medio vix obsolete 
striato, area antero-laterali medium versus modice elongata, segmento 
1.2 disco supra sat profundo concavo. 
1 2 de Salta.—Col. Mus. Nac. Buenos Aires. 
Iphiaulax erythrocephalus Br£THES, n. sp. 
g Ruber, mandibulis apice nigris, antenmis vix a basi funicula 
apicem versus gradatim maigris, pedibus ferrugineo-testacess, 
alis dimidio basali flavidis, anticis in fusco apicali fascia etiam 
flavida, stigmate flavo, cellulis discordali 1.2 macula apicali et 
discordali-postica basi, contra venam transverso-cubitalem 2.20 
paulum hyalinis. Long.: S mm. Antennae: S mm. 
Politus, facie rugulosa, genis mediocribus, lineis parapsidalibus 
antice distinctis, abdomine segmento 1. area media obsolete bilineato- 
Impressa, segmento 2.” area media vix ad apicem segmenti attingente, 
sat angusta et modice elevata, impressionibus discalibus in medio pos- 
tice sat elevatis, segmento utrinque prope lineas laterales minutissime 
punctulato, seemento 3. longitudinaliter obsolete cristato, basi vix 
tuberculato, et ante tuberculum striolato, area antero-laterali vix 
tuberculo medio attingente, in medio postice sat impressa, seamento 
4. etiam obsolete longitrorsum carinulato. 
1 Z de Jujuy (Dr. C. SPEGAZZINI leg.).—Col. Mus. Nac. Buenos 
Aires. 
