WINTER NUMBER 37 
a 
| base and apex; 6 brown but yellowish on basal half; 7-9 dark brown. 3 
long wedge-shaped with a narrow base; 4 and 6-9 barrel-shaped; 5 oval; 
4-6 with short ‘broad pedicels; margins, especially of 3 and 4, conspicuously 
crenate. Hairs and sense cones very pale, short and inconspicuous. A distal 
ring of sensoria on segments 3 and 4. 
 Prothorax but little longer than the head and 1.7 as wide as long; widest 
posteriorly. Anterior margin and sides nearly straight; posterior margin 
much arched. Dorsal surface striated posteriorly. A short, thick spine on 
each anterior angle and two on each posterior; a row of eight minute ones 
along the anterior margin and about a score of others scattered over the 
dorsum. Legs rather slender. Fore femora but little thickened. Mem- 
branes of fore wings dark brown except two minute areas near the base; 
.075 mm. wide at the base (exclusive of scale); rather abruptly narrowed 
at about a third of their length to half the sub-basal width; length ten 
times that of the sub-basal width. Costal vein with about 31, anterior with 
24 and posterior vein with 20 bristles. 
Abdomen not pubescent but provided with a number of short bristles, a 
row along the posterior margin of each segment being especially promi- 
nent. 
Males similar to the females but smaller. Fore femora considerably en- 
larged. 
Described from fourteen females and two males taken from 
the heads of a composite (Helenium) in Rabun County, Ga. Type 
in the author’s collection. Paratypes in the National Museum and 
in that of the University of Florida. 
Haplothrips rabuni, n. sp. 
Female. Length about 1.5 mm. Color dark brown to black with some 
reddish hypodermal pigment; antennal segment 3 and usually (but not 
always) fore tarsi and apical inner portion of fore tibiae yellowish brown. 
Measurements: Head, length .20, width .166; Prothorax, length .122, 
width .241; Pterothorax, width .277; Abdomen, width .273; Tube length 
.108; width at base .054, at apex .031 mm. Antennae, total length .27 mm. 
Segment ee a ce FeeIPo ecee e e® e a 
er AG eee es 21 | 40 | 41 | 46 | 42 | 40 | 87 | 26 microns 
\WUTIG HG) tase ee eee tn ee ae 27 | 26 | 22 | 29 | 27 | 27 | 26 | 14 microns 
Head longer than wide, broadest at the middle, cheeks gently arched, 
slightly convergent posteriorly; vertex rounded, slightly produced. Post- 
ocular bristles fairly long but, like all the other bristles of head and 
thorax, almost or quite colorless and difficult to detect. Hyes medium sized, 
occupying slightly more than a third of the length of the head, not pro- 
truding, not pilose. Ocelli large, yellowish, the anterior on the extreme 
vertex of the head and directed forward, the posterior pair opposite the 
anterior third of the eyes. Antennae about a third longer than the head. 
Segment 1 (and sometimes 2) concolorous with the head; 3 yellowish brown; 
4 and 5 light brown without yellowish bases; 6-8 darker brown; 1 short- 
