3 

 5 

 Bi setae on 



marshalli 



4 



vuilleti 



micrurus 



6 



7 



104 L. A. MOUND 



examined by the present author, the following key being based on material in the British 

 Museum (Natural History) ; 



1 Pronotum with no enlarged major setae developed ..... caudatus 



- At least epimeral setae well developed ..... 



2 Postero-angular pronotal setae stout, at least half as long as epimerals 



- Postero-angular pronotal setae small, much smaller than epimerals 



3 Tube more than 1 -5 times as long as head, usually between 1 -6 and 2 o 



tergite IX short, about 01 times as long as tube 



- Tube shorter, about 1 -2 to 1 -4 times as long as the head 



4 Bi setae on tergites IX 0-25 to 0-35 as long as tube 



- Bi setae on tergite IX 0-15 to 0-20 as long as tube 



5 Major pronotal setae very dark ; African species. 



- Major pronotal setae pale, hyaline ; Oriental species . 



6 Reticles of metanotal sculpture between the median setae narrow, much narrower 



than posterior metanotal reticulations (Text-fig. 67) ; Bi setae on tergite IX 

 about 01 times as long as tube ........ turner i 



- Anterior reticles of metanotum linear but almost as broad as posterior reticles (Text- 



fig. 66) ; Bi setae on tergite IX about 0-2 times as long as tube . . modestus 



7 Anterior margin of pronotum with about eight pairs of short setae, antero-angulars 



not enlarged ............ elegans 



- Antero-angular pronotal setae almost as stout as epimerals, anterior margin with 



only four pairs of setae ........... 8 



8 Anterior part of mesonotum reticulate or with broadly spaced striations ; antero- 



angular and midlateral setae closer together than their length . . . tibialis 



- Anterior part of mesonotum more closely striate (Text-fig. 65) ; antero-angular and 



midlateral pronotal setae further apart than their length . . . nigrodentatus 



Gigantothrips caudatus (Bagnall) 



Panurothrips caudatus Bagnall, 1910b : 427-428. 

 Gigantothrips caudatus (Bagnall) ; Faure, 1953 : 212-216. 



Contrary to many species in this genus the tube setae of caudatus are not decum- 

 bent but stand out at an angle of about forty five degrees. Moulton's record of 

 caudatus from Pondoland (1930b : 416) is a mis-identification of turneri. 



Holotype $. South Africa : Cape Province, Knysna, on Curtisia fraginea 

 (E. J. O'Connor). 



Gigantothrips elegans (Zimmermann) 



Gigantothrips elegans Zimmermann, 1900 : 18-19. 

 Panurothrips gracilis Bagnall, 1908c : 208-210. 

 Gigantothrips crawfordi Hood, 1919a : 71-73. Syn. n. 



A paratype of crawfordi from the Philippines has been compared with the type 

 specimens of gracilis and material of elegans from Java and India. 



Holotype $ of gracilis. Thailand : Bangkok (H. Hillman). BM 1899-20. 



