1930 ] 
New Neuropteroid Insects 
185 
Thyrsopsocus pretiosus sp. nov. 
Figure 3. 
Head, thorax, and abdomen black, a pale V-mark on 
thoracic notum in front. Antennas brown or black, with 
black hair on third joint, basal joints and base of four 
joint pale; legs black or brown, paler on apical part of tibia 
and basitarsus, middle tibia whole pale. Wings hyaline, 
with a large black spot occupying most of apical part as in 
the figure, containing three large pale areas ; in front, one 
each side of the stigma, and one over most of the posterior 
cells; stigma dark at each end and behind to radius, yel- 
lowish through the middle; on basal part of wing two 
transverse black spots, and a longer oblique one above and 
into part of the cell. Veins dark, but end of discal cell and 
lower part of outer side, and the forking of radius yellow ; 
hind wings hyaline, with dark veins. 
Length of fore wing 6 mm. 
From Barro Colorado, Panama, 18, 23 July. 
Thyrsopsocus bellulus sp. nov. 
Figure 1. 
Head pale yellowish brown; antennae black, with black 
hair, basal two joints pale yellowish; thoracic notum pale, 
a dark band across connecting bases of fore wings; scutel- 
lum dark, with pale margin ; abdomen dark above, near tip 
is a large yellowish spot each side, venter pale; legs pale, 
tips of tarsi dark. Wings hyaline, with mostly pale brown 
marks in apical part of wing as figured ; the stigma yellow 
and the yellow extended back to radius; black marks at 
base of stigma, on each side along connection to radius, 
and in the posterior edge of cell, and two transverse marks 
in basal part of wing, the hinder one curved and extending 
toward base; veins mostly dark brown, the basal part of 
radius and some of media yellow, also most of stigmal vein ; 
hind-wings hyaline, with dark veins. 
Length of fore wing 6 mm. 
From Carmelina, Honduras, March, on orange (W. M. 
Mann) . 
