1943] New Neuroptera and Trichoptera 77 
with similar venation. Wing slender, acute at tips; fore wings 
with seven cross-veins before radial sector, nine to eleven radi- 
als before stigma, five or six branches of anal; one series of 
gradates in apical costal area. In hind wings four cross-veins 
before radial sector, about eight radials before stigma, and five 
branches to anal; no gradates in apical costal area. 
Length of fore wing 21 to 25 mm., width 4.9 to 5.5 mm. 
Length of hind wing 19 to 23 mm., width 4 to 4.2 mm. 
From Tucson, Arizona, 6, 20 June; 6 August; Nogales, 
Arizona 25 July; El Paso, Texas, 4 July, and Brownsville, 
Texas, April. Type M.C.Z., No. 25849. 
In general similar to M. rusticus, but smaller on average, 
with plainly more slender wings, and cross-veins dotted, vertex 
usually wholly black, and the last joint of labial palpi rather 
more swollen. 
Myrmeleon californicus sp. nov. 
Face mostly reddish brown, lower part of clypeus and the 
orbits yellowish, front and vertex deep black, also the anten- 
nae except part of basal joint. Pronotum pale, markings very 
faint, behind groove is a large broad dark area, and in front a 
smaller median spot, hair white; thorax black, pruinose; abdo- 
men black, with short white hair, none of segments pale at tips 
except the last; legs pale, mid and hind femora somewhat em- 
browned, mid and hind tibiae with black line within, all tarsi 
mostly black except basal joint, spines black, spurs almost 
equal first joint. 
Wings hyaline, veins mostly pale, subcosta, radius, and cubi- 
tus marked with dark streaks as usual, stigma white; most of 
venation beyond stigma dark, and some cross-veins behind are 
dark; hair on veins in costal area mostly black, elsewhere it is 
largely snow-white, or only the tips of hairs black. Last joint 
of labial palpi black, except tip, about as much swollen as in 
M. rusticus. 
Wings broad, especially toward tip; in fore wing the apical 
costal area is expanded in front and just behind the tip of wing 
is a distinct concavity, so the tip appears slightly falcate. In 
fore wing seven cross-veins before radial sector, about ten 
radials before stigma, one series of gradates in apical costal 
area, six or seven branches of anal vein; posterior part of cu- 
bital area almost twice as broad as anterior part; the cubitus 
