A THE FLORIDA ENTOMOLOGIST 
Abdomen normal to the genus in shape. The lighter color of 6th 
segment and the light stripe along meson due partly to the absence of the 
very fine posteriorly directed dark spines found on segments 7-10 and 
on darkened posteriors of other segments. Segments 2 to 7 each with a 
dark chitinous thickening near anterior margin. Spines on last two seg- 
ments rather short. Tenth segment entire above. 
Measurements; length 1.10 mm.; head, length0.04 mm., width 0.16 mm.; 
prothorax, length 0.114 mm., width 0.204 mm.; mesothorax, width 0.26 mm.; 
metathorax, width 0,24 mm.; abdomen, width at 4th segment 0.28 mm. 
Dimensions of antennal segments in microns: 
Py ee ee ee ee es ee epee 8 
Hencthia ee ee. 6%" 36 1 57 T4479 5s eee ee 
Described from 2 females collected at Rio Pedros, Porto Rico, March 
25, 1920, by E. G. Smythe. 
The chitinous thickening on the pronotum and the color will differ- 
entiate this species from other species of the genus. 
Anaphothrips bicolor, sp. nov. : 
Female:—Holotype—Coloration: brown and yellow; head, mesothorax, 
metathorax, first two and last four abdominal segments, first two and 
last four antennal segments and second quarter of fore wing brown—the 
head and last three abdominal segments somewhat darker than thorax, the 
first antennal segment and second quarter of wing somewhat lighter than 
thorax. Middle and hind coxae light brown. Remainder of insect grayish 
yellow except basal fourth of fore wing which is colorless, the apical half 
which is light gray and the 8rd and 4th antennal segments which are very 
light yellowish, The eyes tinged with orange pigment, the ocelli are light 
yellow margined inwardly with very dark orange crescents. 
Head a little less than 1/5 broader than long, obtusely angular in 
front of eyes, cheek very slightly convex, eyes slightly protruding, occupy- 
ing nearly 2/3 the width of head and fully 1/2 its length; ocelli small, 
approximate, the posterior pair on line with posterior third of compound 
eyes. Surface faintly and sparcely transversely striate. Four tiny spines 
stand in a row across front half-way between anterior ocellus and frontal 
angle, a row of six similar spines cross the head just behind eyes, and a 
spine of similer size stands just in front of each posterior oecellus. Mouth 
cone heavy and blunt, reaching 3/4 across prosternum. Antennal joints 
rather short, sense cones small. 
Prothorax somewhat longer than head, about 2/3 as long as broad, 
broadest across posterior margin, surface smooth and angles without 
spines. Mesothorax 1/4 broader than prothorax and without visible spines; 
metathorax about 1/9 narrower than mesothorax. Legs short and thick, 
unarmed. Wings broad at base, attaining 8th abdominal segment, First 
third of costal margin bare, at the middle 1/12 as broad as long. The two 
longitudinal veins indistinct. Spines on wing tiny and transparent. Costa 
bears about 20, fore vein with a basal group of 3 spines, 3 spines in the 
brown wing band and 3 widely separated spines beyond, the last one near 
