400 Mr. R. S. Bagnall on new Thysanoptera. 



in Thrips to avoid confusion by other workers who may 

 receive only one or other of the two forms. Further material 

 may enahle us to write upon this curious phase, so far only 

 noticed in Japanese material. 



Ti/pe. Hope Department of Zoology, University Museum, 

 Oxford. 



Bab. Japan, Kobe ; 1 ? with T. flavidus, sp. n., June 

 1915 (/. ^. A. Lewis). 



c. Pallipennis group. 



Physothrijis pallijyes, sp. n. 



? . — Length 1*1-1'3 mm. 



Head and thorax brown lightly tinged with grey, abdomen 

 black-brown. Antennal joints 1 grey-brown, 2 brown, 

 3 clear yellow, 4 to 8 brown, with 4 yellowish at extreme 

 base and 5 inclined to be lighter at base. Legs yellow, the 

 fore-femora lightly and the intermediate and hind femora 

 more strongly shaded with grey-brown. Outer margin of 

 the fore and intermediate tibi^ shaded with grey-brown, and 

 the hind tibise with grey in some specimens. Fore-wings 

 dark smoky-grey, basal fourth light grey. 



Head about 0*65 as long as broad, broadest across cheeks 

 which are gently arched; eyes large, coarsely facetted, pilose. 

 Ocelli large, anterior one protected by a pair of rather short 

 setse. Antennae about 2*5 times as long as the head ; joints 

 3 and 4 fusiform ; relative lengths of joints as follows : — 

 18 : 32 : 48 : 45 : 30 : 42 : 5 : 5. 



Prothorax about 1*2 times as long as the head, about 0*7 

 as long as broad ; surface sparingly setose ; hind margin 

 depressed ; bristles at posterior angles stout, rather short, 

 not much more tlian 0*4 the length of the prothorax. Setae 

 on fore-wings rather long ; three widely spaced setae in 

 distal half of upper vein ; lower vein with a series of 15-18 

 and costa with about 30. 



Apical abdominal bristles moderately long, a short dorsal 

 pair on segment 9 ; posterior margin of tergite 8 with a short 

 irregular tringe. 



Easily separated from P. valgatissimus {pallipennis) by 

 the coloration of body, legs, and wings. 



Type. Hope Department of Zoology, University Museum, 

 Oxford. 



