1927] 
New Neotropical Thysanoptera 
235 
in phaseoli 3 Abdomen reticulate, not striate, strongly roughened 
within the reticules; segment 10 divided dorsally to near base. 
Measurements of holotype ($): Length 1.13 mm.; head, 
length 0.118 mm., greatest width (across eyes) 0. 148 mm., least 
width (at posterior angles of eyes) 0.136 mm.; eyes, length 
0.068 mm., width 0.040 mm., interval 0.068 mm.; prothorax, 
median length of pronotum 0. 108 mm., width 0. 195 mm.; ptero- 
thorax, width 0.230 mm.; fore wings, length 0.780 mm., width 
at middle 0.042 mm., width near base 0.068 mm.; abdomen, 
greatest width 0.269 mm.; segment 8, length to fringe 0.078 
mm., segment 9, length 0.114 mm., segment 10, median length 
0.056 mm. 
Antennal segments: 12345678 
Length (/x) 20 40 46 40 33 27 15 31 
Width (ju) 24 28 21 21 20 17 7 5 
Total length of antenna 0. 25 mm. 
Described from a number of females collected in St. Croix 
(type locality), Grenada, Tobago, Martinique, Trinidad, Porto 
Rico, and Cuba, by C. B. Williams, F. W. Urich, T. H. Jones, 
and S. C. Bruner. Most of the specimens were taken by sleep- 
ing, though the Cuban and Porto Rican ones came from corn, 
sugar cane, and possibly from molojillo. 
This is a member of the group which includes fasciatus. The 
long head will distinguish it from that species, while the italicized 
characters will serve for its separation from cinctipennis, to which 
it is more closely allied. 
Hercothrips nanus sp. nov. 
Female {macropier ous) . — Length about 0.84 mm. Head and 
thorax brownish yellow, the head darkened with brown in pos- 
terior half and with a narrow, nearly black line along posterior 
margin, the thorax darkened with brown along sides and in an- 
terior portion of mesothorax, dorsum of metathorax very pale; 
abdomen with segment 1 concolorous with dorsum of metathorax, 
2-8 dark brown, and 9 and 10 pale brown; antennae with segments 
3 L. c., PI. 8, fig. a. 
