1948] 
Banks — Chrysopidae 
153 
10 — Almost all cross-veins and the gradates of fore wing 
very dark; from the third cubital cell but one vein 
to margin, but four or five inner gradates ; two or 
three forks beyond medius tolteca Bks. 
Costals and some other cross-veins dark only in 
middle, from third cubital the usual two veins to 
margin, six or seven inner gradates, and four or four 
and one-half forks beyond end of medius before the 
acute tip ; pronotum plainly broader behind than in 
front; palpi pale caligata Bks. 
11 — A distinct dark or reddish band (or two lunules) 
across the face just below the base of antennae, often 
also a lower band 12 
No band across face 16 
12 — Second joint of antenna black; vertex with two spots 
in front, sometimes also behind; pronotum un- 
marked; venation mostly green, costals often dark 
at ends ; five or six forks beyond end of medius be- 
fore tip or fore wing mexicana Bks. 
Second joint of antennae not dark 13 
13 — Vertex without marks except a red line close to each 
eye; venation, including gradates, pale; face-marks 
are red; five forks beyond end of medius before 
wing-tip; inner gradates near the outer row. 
acolhua n. sp. 
Vertex with dark or reddish marks near middle; in- 
ner gradates about as near to radial sector as to 
outer row 14 
14 — Pronotum without lateral dark stripes ; vertex with 
a red thrice-forked mark; cross-veins mostly brown, 
divisory cell not twice as long as broad at base; 
three and a half or four forks beyond end of medius 
trifurcata n. sp. 
Pronotum with a dark or black stripe each side ; ver- 
tex with two parallel lines near middle, sometimes 
connected in front ; lateral lobes of meso- and meta- 
notnm more or less rufous ; anal veins black for 
some distance 15 
15 — Venation (including gradates) largely pale green; 
pronotal stripes broad, reach side margin. 
nahoa n. sp. 
