84 Psyche [March-June 
interspaces; mesosoma pale red or reddish brown with white 
markings and black areas of variable extent 2 
Mesoscutum silky shining with more or less fine punctuation; 
setae of second gastric tergite sparser, mostly shorter to much 
shorter than the length of their interspaces; mesosoma black 
with sparse to profuse white markings 3 
2. Gaster black with white apical bands on tergites; flagellum with 
a white annulus; hind-tarsomeres 2-4 white; first flagellomere 
8.5-10.0 as long as deep at apex; postpetiole weakly expanded, 
O.8-O.9 as wide apically as long from spiracle to apex; ovi- 
positor tip 0.18-0.20 as high at notch as long from notch to 
apex 1. A. f estiva Porter 
Gaster bright reddish brown with more or less prominent white 
apical bands on tergites; flagellum without a white annulus; 
hind-tarsus without white markings; first flagellomere 6. 2-7. 3 
as long as deep at apex; postpetiole more strongly expanded, 
1. 3-1. 4 as wide apically as long from spiracle to apex; ovipos- 
itor tip 0.26-0.31 as high at notch as long from notch to apex 
2. A. tucumana n. sp. 
3. Thorax and propodeum with profuse white markings; all gastric 
tergites with a complete white apical band ; apical margin of 
clypeus with a small subdentate median projection; dorsal mar- 
gin of pronotum without a definite submarginal groove 
3. A. stangeorum Porter 
Mesosoma with white at most on anterior margin of pronotum, 
tegula, and subalarum; not all gastric tergites with a com- 
plete white apical band; no median projection on apical margin 
of clypeus; dorsal margin of pronotum with a conspicuous 
submarginal groove 4 
4. Legs mostly black with white markings; gaster with the follow- 
ing white: median subapical mark on tergite 1, sometimes 
marks on 2 and 3, and broad apical bands on 4-7 ; sheathed 
portion of ovipositor 0.5-0.6 as long as fore-wing; nodus of 
ovipositor tip with an unusually large and deep notch 
4. A. varipes Porter 
Legs mostly orange; gaster with white at most on tergites 6-8 
and only on 7 sometimes with a complete white apical band; 
sheathed portion of ovipositor O.3-0.4 as long as fore-wing; 
nodus with a small but distinct notch 5. A. rubripes Spinola 
