1945] Chrysopidae of Central America 145 
11. Inner gradates not reduced, both series more or less 
plainly bordered, and not parallel infausta 
Inner gradates often reduced about half, close to and nearly 
parallel to outer row, not bordered; radials dark only in 
middle caligata 
1 2 . Venation almost wholly pale greenish, gradates not dark ; 
divisory cell usually ends before the cross-vein above . .13 
Venation with some cross-veins at least partly dark and the 
gradates dark 14 
13. Cubital area more than one half as wide as the post 
cubital ; reddish on cheeks usually extends upward by side of 
eye, no black streak comanche 
Cubital area not quite one half as wide as the post cubital 
area; a black streak by side of the red on cheek . californica 
14. Seven cubital cross- veins beyond the divisory cell; a 
dark spot on each cheek and one each side on clypeus ; venation 
largely green facialis 
Six cubitals beyond divisory cell 15 
15. Some veins behind radial sector bordered with yellowish, 
the gradates bordered with brown; no mark on cheeks; palpi 
pale parishi 
No veins bordered with yellowish 16 
16. Palpi dark or lined; inner gradates arise before or very 
near the penultimate cubital cross-vein 19 
Palpi pale; inner gradates arise much beyond the penultimate 
cubital cross-vein 17 
17. A reddish or dark spot at each corner of the pronotum; 
no marks under eyes tetrasticta 
Not four spots on pronotum, a mark under each eye . .18 
18. Pronotum red on sides; cubital area as broad as post 
cubital area; usually twelve radials, and but three or four 
inner gradates brevihirta 
Pronotum not red on sides; cubital area not nearly as broad 
as post cubital area, all cubital cells longer than broad; usually 
about ten radials and five inner gradates .... fairchildi 
19. Inner gradates strongly divergent from the outer ones 20 
Gradates parallel or nearly so; often a red or dark mark 
under eye 21 
