Hood — Descriptions of New Thysanoptera. 117 



pterothorax, width 0.368 mm. ; fore wing, length 1.02 mm., width near 

 base 0.108 mm., at middle 0.068 mm. ; abdomen, width 0.438 mm. 



Antennal segments : 1 



Length (fi) 39 



Width (m) 36 



Total length of antenna, 0.379 mm. 



Male {macroptcrous). — Length about 1.2 mm. Color almost identical 

 with that of female. Ninth abdominal tergite with three pairs of stout, 

 strong, black spines (the second pair longest) whose bases form an 

 almost perfect hexagon; sternites without the usual pale sensory areas. 



3Ieasurements of allotype: Length 1.22 mm. ; head, length 0.122 mm., 

 width 0.168 mm.; prothorax, length 0.156 mm., width 0.223 mm.; 

 pterothorax, width 0.294 mm. ; fore wing, length 0.768 mm., width near 

 base 0.075 mm., at middle 0.048 mm. ; abdomen, width 0.252 mm. 



Antennal segments: 12345678 



Length (/x) 32 45 59 51 43 52 9 19 



Width (fi) 30 29 24 22 19 18 7 5 



Total length of antenna, 0.310 mm. 



Described from 4 females and 2 males taken at Ibadan, Southern 

 Nigeria, in flowers of Melia azedarach Linn6, January 14, 1915, by 

 Arthur W. Jobbins-Pomeroy. 



An unusually pretty species, which may at once be known by its colora- 

 tion. 



Odontothrips pictipennis sp. nov. 

 (PI. Ill, Fig. 3.) 



Female (macropterous). — Length about 1.3 mm. Color blackish brown, 

 with tarsi, fore tibite, and antennal segments 3 and 4 yellow; fore wings 

 white, tipped with gray and with a dark gray band in middle third. 



Head 1.28 times as wide as median dorsal length, clieeks almost straight 

 and parallel; frontal costa very narrow, not emarginate; vertex trans- 

 versely rugose, slightly impressed; occiput with several rather strong, 

 transverse, anastomozing lines; interocellar bristles long and strong, 

 nearly half the length of head ; all other cephalic bristles minute. Eyes 

 setose, about 0.6 as long as head and about 0.7 as wide as their interval. 

 Ocelli subequal in size, with maroon pigment, posterior ocelli distinctly 

 behind middle of eyes, and about 0.6 as far from anterior ocellus as from 

 each other. Antennae about two and one-third times as long as head ; 

 segments 1 and 2 concolorous with head; 3 and 4 yellow, the latter 

 inf uscate apically ; 5-8 dark brown ; sense cone on inner surface of segment 

 6 attached at base only. 



Prothorax about 1.3 times as long as head and nearly 1.4 times as wide 

 as long, suborbicular in form with anterior margin nearly straight; 

 pronotum smooth ; posterior angular bristles long and strong, about one- 

 third the length of prothorax; other bristles small and inconspicuous. 

 Wings of fore pair brown at extreme base, white beyond in basal third, 

 gray in middle third, and with the apical third white, except for a small 



