218 Mr. U. S. Bagnall on new Tliysanoptera. 



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

 Oxford. 



Ihib. N. Queensland, Brandon; on small flowers (pea), 

 16. X. U (7?. Kell>/). 



P/{i/sotJi)'ij)s hrunneicornis, sp. n. 



? . — Length I'-i to 1-5 mm. 



Colour brown, the antenna^, head, prothorax, intermediate 

 and hind femora and tibia?, and ai)ical abdominal segments 

 inclined to be darker. Autennse unicolorous, fore-tibiae 

 yellow, shaded with greyish brown along margins ; all tarsi 

 yellow. Fore-wings faintly clouded with light grey-brown 

 near base ; basal third or thereabouts clear, thence smoky- 

 brown to tip excepting for an ill-defined clear patch at about 

 the commencement of the distal fifth ; setae and cilia dark. 



Head about 0*7 as long as broad and not quite as long as 

 the prothorax ; a defined area of the dorsal surface behind 

 transversely striated. Eyes coarsely facetted, minutely 

 pilose ; cheeks not arched, tending to widen posteriorly ; 

 ocelli large, posterior pair above a line drawn across hind 

 margins of eyes ; interocellar bristles long and strong, placed 

 bet\Yeen the anterior ocellus and the posterior pair. Antennae 

 seated bilow vertex, about 2*5 times as long as the head ; 

 relative lengths of joints 3 to 8 as follows : — 22 : 22 : 14 : 

 20 : 5 : 6. Joints 5 and 6 somewhat broadly united and 

 distinctly more slender than the preceding ; forked trichomes 

 on 'is and 4 long and stout. 



Prothorax n)uch as in P. usitatus. 



Fore-wing and arrangement of setae as in P. usitatus. 



Abdomen about 1*15 times as broad as the pterothorax, 

 segments 9 and 10 obconical ; apical bristles long and stout ; 

 y with a rather short dorsal pair widely separated. 



This species very closely approaches P. usitatus, Bagn., 

 but is at once separated from it (as w^ell as from sjostedli^ 

 Trybom, and variabilis, Bagn.) by the unicolorous antennae. 

 The antennal joints 3 and 4 would appear to be stouter and 6 

 shorter than in usitatus, whilst the fore-femora are concolorous 

 with the prothorax. 



Type. Hope Department of Zoology, University Museum, 

 Oxford. 



TIa.h. Japan, Kobe, April 1914 (/, E. A. Lewix). Reg. 

 no. 144. 



