BAGNALL'S THYSANOPTERA 153 



the extension of the eyes on the ventral surface of the head, and also the very long 

 interocellar setae. 



Holotype $. Venezuela : Los Adjuntas, 10.ix.1891 {Meinert). 



Trybomia intermedia (Bagnall) 



Liothrips intermedins Bagnall, 1910a : 384-385. 



The two syntypes of this species are not in the British Museum (Natural History) 

 or the Copenhagen University Museum. The published data were : Venezuela : 

 Los Adjuntas, 10.ix.1891 (Meinert). Priesner (1921 : 195) indicates that phasma 

 Karny, the type-species of Trybomia, is a synonym of intermedia. 



UROTHRIPS Bagnall 



Urothrips Bagnall, icjogg : 126. Type-species U. paradoxus, by monotypy. 



From being the type-genus of a Sub-Order including ten or more genera, Urothrips 

 was reduced to the level of a subgenus of Amphiholothrips by Stannard, who also 

 gives a table summarizing the important characters of the other members of the 

 group (1957 : 30). 



Urothrips paradoxus Bagnall 

 Urothrips paradoxus Bagnall, igogg : 123-130. 

 This species is widespread between Kenya and South Africa. 

 Syntypes^ & $. [Tanganyika] : Arusha, x-xi.1905 (Katona). 



FOSSIL THYSANOPTERA 



AEOLOTHRIPIDAE 



Archankothrips varicornis (Bagnall) 

 (Text-fig. 75) 



Melanothrips [sic] varicornis Bagnall, 1923a : 36. 

 Archankothrips variicornis [sic] (Bagnall) Bagnall, 1926b : 17. 



Priesner (1924b) erected the genus Archankothrips for a male specimen in Amber 

 of which the prothorax was damaged. In varicornis the posterior margin of the 

 pronotum bears six or seven pairs of major setae, and there are three pairs of post- 

 ocular setae visible. The distal prolongation of antennal II was referred to by 

 Bagnall in 1926, but the four transverse lines on antennal IX may be an artefact. 

 The lines are not true sutures but are similar in appearance to the lines found on 

 antennal segments in the recent genus Dactuliothrips. The sensoria on antennals 

 III and IV are broader than in Ankothrips but not as broad as in Erotidothrips. 



Holotype £. In Baltic Amber, IB 436 ; Type slide 1436.V.1. 



