1945] Chrysopidae of Central America 169 
over the last cubital, and the bases of marginal forks; inner 
gradates dark, one or two of them faintly margined; the stigma 
with a large dark spot at base, and behind are three or four 
dark radials, faintly margined; the cubital cross- veins are also 
dark and some slightly bordered; many costals wholly or partly 
brown. In the hind wings the outer gradates faintly dark; the 
stigma with a large brown spot, and behind one or two radials 
dark. The pronotum is plainly longer than broad, the sides 
parallel. In the fore wings there are eleven radials, five or six 
outer and five inner gradates, not parallel, rather wide apart, 
the inner row nearer to radial sector than to the outer row, 
latter rather close to outer margin; branches of radial sector 
much bent at inner gradates; veins only sparsely haired; di- 
visory cell long, tip sharp-pointed and on one wing almost 
reaches the end of cell, base slightly oblique, hardly one half 
of outer side, seven cross-veins beyond; costal area nearly as 
wide as post-cubital, but the radial area still broader (at its 
broadest); cubital area not one half of postcubital. In the 
hind wings the postcubital area is not quite as broad as the 
radial; four inner, five outer gradates, nearly parallel, but well 
separated; six cubitals, eight radial cross-veins. 
Length of fore wing 11 mm., width 3.8 mm. 
One from Pedrogoso, Costa Rica, 2100 ft., February, (Rounds 
coll.). Type M.C.Z. no. 25658. 
Differs from Nodita cortezi in longer pronotum, with two 
rounded spots each side (instead of one line) ; the reddish (in- 
stead of brown) spots below antennae, and further down; in the 
partly black palpi; and the basal joint of antennae not so much 
dark ; and by the slightly curved radial sector belongs in Leuco- 
chrysa. From Leucochrysa notha and antica Navas it is sepa- 
rated by the spots on face and side of pronotum; the stripe on 
basal joint of antenna on upper (not outer) side; the palpi are 
marked with dark, and the inner gradates run up closer to the 
radial sector. 
Leucochrysa erminea sp. nov. 
Face without definite marks, except dark spot under each 
eye; palpi pale, marked with dark; antennae very long, pale, 
basal joint and second dark above, a faint dark mark over two 
more joints; pronotum broader than long, sides dark; meso- 
notum dark over base of fore wings, metanotum dark in front, 
