12 
THE BEAN THEIPS. 
THE YOUNG NYMPH OR PREPUPA. 
(Fig. 6.) 
Length, 1.02 mm. ; width of mesothorax, 0.255 mm. Shape fusiform, similar 
to adult. Head, length, 0.09 mm. ; width at eyes, 0.157 mm. Head translucent 
white, vertex slightly yellowish, ocelli absent. Head rounded in front, slightly 
notched behind the eyes ; eyes red, made up of a few facets, surface faintly 
reticulated; two pairs of setae behind the eyes and two pairs between the eyes. 
Antennae translucent white, extending forward, 0.195 mm. in length; segments 
indistinct but apparently 7-segmented. 
Prothorax about one-half again as wide as long, sides rounded, posterior edge 
broadest, semi translucent white to yellow, posterior angles tinted with crimson. 
Pig. 5. — The bean thrips : Second- 
stage larva. Greatly enlarged. 
(Original.) 
Fig. 6. — The bean thrips: Prepupa. 
Greatly enlarged. (Original.) 
setae around margin. Mesothorax with rounded angles, translucent white to 
faint yellow, sides and posterior angles tinted with crimson, wing-cases trans- 
parent white, distinct from each other, those of forewings extending to middle 
of second abdominal segment and those of hind wings extending to middle of 
third abdominal segment. Legs strong, translucent white. 
Abdomen fusiform as in adult, translucent white to faint yellowish, edges 
with tint of crimson, which enlarges to fair-sized blotches on sides of seventh 
and eighth segments; number of longitudinal rows of setae increasing in length 
toward posterior end. Length of abdomen, 0.G2 mm. 
