368 
Trichothrips longitubus sp. nov. 
Female.—Length about 1.8mm. General color dark blackish brown 
to black, pterothorax and basal abdominal segments usually paler; 
tibiz, tarsi, and intermediate antennal segments bright lemon-yellow, 
the tibiae clouded basally. 
Head about as wide as long; cheeks slightly converging posteriorly ; 
vertex elevated, slightly produced, and bearing the anterior ocellus at its 
extremity; lateral and dorsal surfaces noticeably transversely striate, 
sparsely and briefly spinose; postocular bristles blunt, almost half as 
long as head. Eyes slightly more than one-fourth as long as head, 
finely faceted. Ocelli anterior; anterior ocellus overhanging. Antenne 
slightly less than twice as long as head; segments 1 and 2 nearly con- 
colorous with body, 2 brownish yellow apically; 3—6 uniform bright 
lemon-yellow; 7 blackish yellow at base, shading to blackish brown at 
apex; 8 blackish brown; sense cones long, slender; segment 3 with one on 
outer apical surface; 4-6 each with one on either side of apex, and a 
small rudimentary one on dorsum. Mouth cone nearly reaching base of 
prosternum. 
Prothorax two-thirds as long as head, and (including coxe) about 
two and one-half times as wide as long; all spines present, blunt, except- 
ing the pair at the posterior angles, which are pointed, and longer than 
the prothorax. Pterothorax broader than long, shghtly wider than 
prothorax; sides arcuate, slightly converging posteriorly. Wings reach- 
ing base of tube; fore wings clouded at base, not narrowed at middle, and 
with the apical fringe on posterior margin double for about eight hairs. 
Legs slender; femora nearly concolorous with body, the middle and hind 
pairs paler basally; tibie lemon-yellow, clouded basally; tarsi lemon- 
yellow, unarmed. 
Abdomen large, heavy; bristles long. Tube fully as long as head, 
tapering evenly from base to apex. 
Measurements:—Length 1.84 mm.; head, length .25 mm., width .24 
mm.; prothorax, length .16 mm., width (including coxe) .40 mm.; 
pterothorax, width .44 mm.; abdomen, width .46 mm.; tube, length .26 
mm., width at base .105 mm., at apex. .050 mm. Antennz: 1, 304; 
2, 57 pf; 3,13 a; 4)°08 Bu? 5, 68.0; 6e05 971,08 1 o,,40em: -cebale 
mm. 
Male.—Similar to female. Prothorax and fore femora not en- 
larged; fore tarsi unarmed. 
Described from ten macropterous specimens (nine females and one 
male) taken in sweepings at Carbondale, Illinois, by Mr. C. A. Hart. 
This species is easily distinguished from all other members of its 
genus by the peculiar antennal coloration and the long tube. 
