WINTER NUMBER 3 if/ 
~ mesothorax, width 0.24; metathorax, greatest width 0.27; abdomen, greatest 
width 0.24 mm. Antennae, total length 0.34 mm. 
Segment [at 7s |e 4 5 6 {/ 8 
ILGiaEs eV A, ee eee Bo) | 2 58 57 52 38 28 | 28 microns 
\\VAIG ICE] a See ee eee 33 28.5| 28 PAL PAL 27 21 | 14 microns 
General color light, yellowish brown; head, antennae, and tube darker, 
a dark tan color, body under reflected light shows much bright yellow 
hypodermal pigmentation. 
Head about as long as wide, narrowed in front, vertex elevated and pro- 
jecting forward between the bases of the antennae. Cheeks bulging ab- 
ruptly behind the eyes, elsewhere nearly straight, diverging slightly pos- 
teriorly, roughened by small wart-like swellings which bear short bristles. 
Eyes small, occupying a little over a third of the length and two fifths 
of the width of the head. Ocelli yellowish brown, very large but incon- 
spicuous, anterior one situated far forward between the bases of the an- 
tennae, facing forward; posterior pair widely separated, situated opposite 
the anterior part of the eyes but far removed from their margins. Post- 
ocular bristles long and sharp pointed, projecting far beyond the eyes. Two 
pairs of smaller bristles situated posterior to them and a somewhat larger 
pair mediad. Two small ones behind and one in front of each ocellus. 
Mouth cone long and slender, sharp-pointed at the tip, reaching quite 
across the prosternum. Antennae 2.5 times as long as the head. Segments 
large and heavy; 1 and 3 about concolorous with the head; 2 lighter, 
brownish yellow; the others darker brown than the head; bristles and 
sense cones long and thick but pale. 
Prothorax trapezoidal, about as long as the head; widening sharply pos- 
teriorly; posterior angles broadly rounded; a long acute spine on each 
angle, subequal in length; and one about the middle of each side. 
Mesothorax about as wide as prothorax, a slight constriction in the 
middle; closely united to the metathorax whose sides are straight and 
parallel. Legs of medium length, fore femora slightly enlarged; fore tarsi 
with a small, sharp spine. Wings short, membrane brown, fringed with 
long but comparatively few hairs. 
Abdomen rather short but longer than in some of the species of the 
genus, sides nearly parallel to the 8th segment and then abruptly rounded; 
lateral bristles rather short, pale. Tube very short; terminal bristles 
scarcely as long as the tube. 
Male unknown. 
Described from a single female taken about a light at night. August, 
1920, Gainesville. Type in the author’s collection. 
This species agrees with EH. hindsi Morgan in the roughened antennal 
segments, acute spines, and narrower body, but differs in color, long mouth 
parts, presence of wings and ocelli, and numerous minor characters. 
KEY TO THE SPECIES OF EURYTHRIPS 
a. Mouth cone short and blunt; spines of the body blunt. 
b. Width of the abdomen about 1.7 that of the prothorax; antennae 
twice asvlonge asthe head...) 02.20.2002. E. ampliventris Hinds. 
