Mr. R. S. Bagnall on neio Thysanoptera. 399 



Hah. S. Australia, Mt. Lofty Range, Adelaide ; amongst 

 a tube of tlirips from flowers of Acacia myrtifolia and 

 Epachris impressa, Aug. 9, 1914 {E. B. Foulton), Reg. 41. 



Genus Physothrips, Karnj. 

 a. SeticoUis group. 



Physothrips settpennis, sp. n. 



This species is very closely related to the Western 

 Australian species, Physothrips seticollis (Bagn.). The 

 antennae are brown except joint 3 which is clear yellow, and 

 the base of 4 yellowish. 



Head as long as or slightly longer than tlie prothorax. 

 Antennae about 2*25 times the length of the head, longer 

 than in seticollis ; relative lengths of joints as follows : — 

 12 : 16 : 27 (with stem) : 26 : 15 : 22 : 3 : 4. 



Prothorax with the bristles at hind angles (which are 

 exceptionally slender and light in colour in seticollis) some- 

 what stout and dark, about 0*65 the length of prothorax ; 

 surface somewhat closely and irregularly set with minute 

 seta3. In seticollis these setaj are regularly disposed (includ- 

 ing three widely-seated pairs down the centre), stouter and 

 about twice the length. 



Apical abdominal bristles distinctly stouter and darker ; 

 ninth tergite with a pair of rather short dorsal bristles, 

 moderately widely separated and the posterior margin of the 

 eighth tergite with a close and moderately long microscopic 

 fringe. 



Upper vein of fore-wing regularly set with setse for the 

 whole length as in seticollis. 



Jype. Hope Department of Zoology, University Museum, 

 Oxford. 



Hah. Australia, Healesville, Victoria ; on cultivated 

 white briar, 25. i. 14 {R. Kelly). 



b. ? group. 



Physothrips flavidus, sp. n. 



$ , — Exactly as in Thrips flavidus, sp. n., but having the 

 antennal style 2-segmented. 



In this case the type is distinctly of the genus Thrips^ and 

 closely allied to T.jiavus, Schr,, and this as well as Physo- 

 thrips alhipes are named in the genus Physothrips as well as 



27* 



