Mi - . R. S. Bagnall on new Thysanoptera, 203 



costa with 22-23 setse ; upper vein with 3 + 4 basally, a long 

 space, and then 1 + 1 at extreme apex ; lower vein with 17 

 seta?; all setae smallish, cilia somewhat sparse. 



Abdomen elongate-ovate, narrowing from segment 7 to 

 apex ; posterior margin of tergite 8 with a moderately lon«- 

 comb of minute setae. Outer pair of postero-marginal setae of 

 segment 9 longer than the inner pair and 1*7 times the length 

 of the tergite ; inner pair on 10 higher up and longer than 

 outer, just upon twice the length of the segment ; a widely 

 spaced pair of dorsal bristles, moderately long, on tergite 9. 



Type. British Museum of Natural History (Imperial Bureau 

 of Entomology). 



Hab. Gold COAST, Aburi; 1 $ with Eurhynchothrips 

 convergens, Nov. 5, 1915, on Cola-shoots and flowers (W. H. 

 Patterson). Reg. 269, I.B.E. 103. 



Family Thripidae. 

 Odontothrips bispinosus, sp. n. 



? . — This form, unfortunately represented by a solitary- 

 example, closely approaches 0. australis, and a separate 

 description is undesirable. It is lighter in colour, but the 



Fig-. 2. 



\ • ' '' 



Odontothrips bispinosus, sp. n., $. Dorsal view of end of abdomen 

 showing spines on segment 9; bristles and setae omitted. X c. 200diam. 



unique example is probably somewhat teneral. The pro- 

 notum is practically flat, with longer and more slender bristles 

 at posterior angles. The pterothorax and abdomen are 

 broader, and the latter, ignoring segments 8-10, is distinctly 

 ovate. The comb of posterior margin of tergite 8 is practi- 

 cally lost, only 2 or 3 very minute micro-seta? showing at 

 extreme ends, whilst the posterior angles of segment 9 are 



14* 



