1925 ] 
New N eotropical Thysanoptera 
57 
St. Croix, Dutch (now American) West Indies; C. B. Wil- 
liams; from grass. 
The only species of the genus so colored. 
Hindsiana rhopalocera sp. nov. 
Female (macropterous). — Length about 1.1 mm. Color 
yellow; head decidedly darkened with brown, particularly an- 
teriorly; prothorax and sides of pterothorax lightly brownish; 
abdomen shading to pale grayish brown in segments 8 and 9; 
tube nearly black except for a narrow, pale, brown band at base 
and one of equal width at apex; legs uniform pale yellow; 
antennae yellow in segments 1-3, uniform dark blackish brown 
beyond, segment 1 shaded with brownish basally; wings faintly 
yellowish at base, nearly clear beyond. Head about 1.3 times as 
long as wide, cheeks parallel; eyes less than one-fourth as long 
as head, about two-thirds as wide as their interval; postocular 
bristles long, broadly dilated apically; antennae with segments 
7 and 8 compactly united to form a heavy club which is twice 
the length of segment 6, segment 8 less than half as long as 7, 
which is distinctly the longest in entire antenna. Prothorax 
with all bristles present, subequal to or shorter than postoculars 
and similarly dilated; median thickening distinct. Wings of fore 
pair without accessory hairs; outer subbasal bristle short and 
pointed, others dilated, about as long as those at anterior angles 
of prothorax. Tube about 0.6 as long as head, less than twice 
as long as basal width, which is less than twice the apical; sides 
somewhat concave; terminal bristles more than twice the length 
of tube. 
Guadeloupe, French West Indies; C. B. Williams; from an 
undetermined plant. 
The structure of the last two antennal segments distinguish 
this species from its congeners. 
Trichothrips calcaratus sp. nov. 
Female (apterous). — Length about 2.3 mm. Color brownish 
yellow, with prothorax, pterothorax and basal three-fourths of 
