1934 ] 
A New Eurythrips from Trinidad 
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long, and dilated at tip, the anterior laterals 80u, midlaterals 
78u, epimerals 79u, posterior marginals 87u, coxals 50u. 
Pterothorax distinctly wider than prothorax, notal plates 
nearly smooth. Legs normal; fore tarsus with a slight 
downwardly-directed tooth or claw at inner distal angle of 
first segment. Wings normal, the fore pair (PI. 1, fig. 2) 
without accessory setas and with the three subbasal setae 
long, knobbed, pale, and comparable with those on anterior 
angles of pronotum. 
Abdomen about 1.4 times as wide as prothorax across 
coxae, free of sculpture save for the usual dark transverse 
line near bases of terga II-IX, major setae mostly knobbed, 
the lateral pair on VII about 113u and pointed, its homo- 
logue on VIII about 97u and knobbed, that on IX about 123u 
and nearly pointed; tube (PI. 1, fig. 1) about two-thirds 
as long as head and only 1.57 times as long as greatest sub- 
basal width, this twice the apical width, sides very slightly 
concave in distal five-sixths, its terminal setae pale and 
nearly 0.9 its length. 
Measurements of holotype ( $ ) : Length about 1.51 mm. 
(distended, 1.89 mm.) ; head, length 0.205 mm., greatest 
width (at basal fourth) 0.144 mm., width across eyes 0.139 
mm., width at posterior margin of eyes 0.111 mm., least 
subbasal width 0.140' mm.; eyes, length 0.060 mm., width 
0.045 mm., interval 0.048 mm. ; prothorax, median length of 
pronotum 0.137 mm., width (inclusive of coxae) 0.277 mm.; 
pterothorax, greatest width 0.331 mm.; abdomen, greatest 
width (at segment IV) 0.388 mm.; tube, length 0.132 mm., 
width near base 0.084 mm., at apex 0.041 mm. 
Antennal segments : 1 2 3 4 5 6 
Length (u) : 50 53 70 66 60 59 
Width (u) : 42 32 30 29 27 26 
Total length of antenna 0.444 mm. 
Described from one female taken by Dr. C. B. Williams 
at St. Joseph, Trinidad, March 4, 1918, by sweeping grass. 
It is in some ways difficult to compare this with the 
closely allied E. ampliventralis Hinds, because one is known 
only in the macropterous form, the other only in the 
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