702 Wisconsin Academy of Sciences, Arts and Letters. 
Tricenodes flavescens Banks. 
Trioenodes flavescens Banks, Tr. Am. Ent. Soc., XXVI, 1900,. 
257; Cat. Xeur. Ins. IT. S. 1907, 45. Ulmer, Gen. Insec- 
torum, Fasc. 60, 1907, 141. 
Imago .—Length of body, 7-8 mm. Expanse, male, 21-22 
mm.; female, 18-20 mm. Antennas very pale luteous with nar¬ 
row brown annulations, less distinct distally. On the inner- 
dorsal side of the basal joint of the antennae of the male, is a 
groove filled with long hairs which arise from its proximal end; 
it is covered with a long flap, attached along its lower edge. 
This may be a generic character, but I am not aware that it 
has been noted before in the literature. Palpi clothed with 
luteous, and a few black hairs. Body luteous. A pair of small 
warts in front of, and another posterior to, the eyes, with brown 
hair; disk clothed with light luteous hair directed forward; on 
either side of the disk, a large wart with light luteous hair ex¬ 
cept a little brown on the outer portion. A pair of prominent 
warts on the pronotum clothed with light hair, and mesothorax, 
medially, similarly clothed; wing callosities with light and dark 
hair. Legs light luteous. Anterior wings brownish, indis¬ 
tinctly marmorate with luteous; in some individuals there is a 
luteous band in each apical cell. Often two black dots on the 
posterior margin; occasionally a darker spot at the pterostigma; 
fringe golden. Posterior wings hyaline, with sparse pubescence, 
the fringe very pale. 
In the male there is a lanceolate median piece between the 
small, finger-like, up-directed superior appendages. The penis 
is large, curving downward, bifid in lateral view. Formally, 
a spine-like piece lies alongside the penis like a sheath on either 
side, but this may be thrown out in the position shown in PI. 
LX, Fig. 1, when it is seen to be a part of the inferior ap¬ 
pendages, its strongly curved proximal portion being normally 
hidden within the abdomen; rising from the base of this piece 
is a small chitinous part, its expanded distal portion beset with 
short spines; also a small, hairy, pointed appendage directed 
slightly upward (normally) is attached by a broad basal portion 
