80 L. A. MOUND 



Diceratothrips bicornis Bagnall 



Diceratothrips bicornis Bagnall, 1908c : 194-195. 



The unique holotype of this species is very similar to armatus. The basal half of 

 the fore wing is dark brown in contrast to the hyaline apical half, and the pronotal 

 antero-angular setae are dark and stout. 



Holotype $. Brazil : Santarem, R. Amazon (Bates). 



Diceratothrips brevicornis Bagnall 

 (Text-fig. 26) 



Diceratothrips brevicornis Bagnall, igiod : 696-698. 



The postocellar setae of the unique holotype male are considerably longer than the 

 interocellar setae, contrary to Bagnall's original figure. The species is very close to 

 thomasseti but the head seems to be rather more constricted basally and the fore 

 tibiae are quite dark. 



Holotype <$. Hawaii, Oahu : Kawailoa gulch, iv.1901 (Perkins 768). 



Diceratothrips brevis (Bagnall) comb. n. 



(Text-figs. 24 & 35) 



Adiaphorothrips brevis Bagnall, 1921b : 276-277. 



The unique holotype of this species is very similar to vitreipennis Priesner and 

 madagascariensis Bagnall, but the specimen lacks antennae and is not in a suitable 

 condition for comparison as it has been badly distorted in mounting. The tube is 

 sculptured, the mesopraesternum quite slender and the maxillary stylets probably 

 formed a narrow V as in the species mentioned above. 



Holotype $■ Seychelles : Mahe [high damp forest between Trois Freres and 

 Morne Seychellois, 1,500-2,000 ft., xii.1908]. 



Diceratothrips difficilis (Bagnall) comb. n. 



(Text-fig. 40) 



Cryptothrips difficilis Bagnall, 1921b : 276. 



As Bagnall has stated, this species is close to seychellensis, and in addition to the 

 characters listed by him, these two differ in the length of the antennal sensoria. In 

 difficilis the sensoria are long, those on IV being about half as long as segment V. 

 From indicus this species is distinguished by the absence of a fore tarsal tooth in the 

 female. 



Holotype $. Seychelles : Silhouette, near Mont Pot-a-Eau, 1,500 ft., viii.1908. 



