318 Mr. R. S. Bag-iiall on new Tliijsanoptera. 



Heliothrips brunnei'pennis, sp. n. 



Length about 1'5 mm., linear. 



Colour daik brown ; head yellowisli-brown and abdomen 

 apically lighter. Fore-femora and tibia yellow, lightly tinged 

 with brown ; intermediate and hind femora and tibise dark 

 brown, basally yellow, the tibiae also yellowish-white distally ; 

 all tarsi whitish-yellow. Fore-wings brown, darkest at base, 

 a light patch in about the tliird tenth ; hind wings light 

 greyish-brown, with median vein darker ; cilia dark. An- 

 tennas with basal joint yellowish ; 2 brown, 3 to 5 clear 

 lemon-yellow, 6 brown, and style yellowish-white. 



Head more than 1*8 times as broad at broadest (near base) 

 as long. Cheeks swollen behind eyes, subparallel to a 

 coUaT-like thickening before constriction at base, which runs 

 in an arc close to the hind margin of the eyes ; reticulations 

 behind collar larger, but not so strong. Eyes large, coarsely 

 facetted, and weakly setose. Ocelli large, posterior pair on a 

 line through middle of eyes. Maxillary palpi 2-segmented. 

 Antennse at least twice as long as the head, lengths of joints 



3 to 8 relatively 26 : 26 : 18 : 10 : 3 : 10,-3 and 4 spindle- 

 shaped, 5 claviform, and 6 globular; style bristle-like. 

 Forked trichomes on 3 and 4 curved, exceptionally long and 

 slender, one of the arms on 4 being 1"7 times the length of 

 that joint. 



Prothorax broader than long, posterior margin from about 

 centre of lateral margins arcuate. Pterothorax large and 

 broad, and about as long as broad. Wings reaching to 

 middle of abdominal segment 8. Fore-wing about 15 times 

 as long as broad through middle, not U|jcurved distally. 

 Setse rather short and slender, dark ; costa with 25/26, 

 increasing in length towards apex of wing ; upper vein with 



4 near fork and 2 near apex, and lower vein with 1 + 2+1-1- 

 1+-1, the last situated towards the end of the fourth fifth — 

 that is, before the lirst of the two distal bristles of the upper 

 vein. 



Abdomen elongate-ovate, occupying about O'G the total 

 length of insect, not broader than the pterothorax. Seg- 

 ments 8 to 10 evenly narrowed to tip ; 9 about 1"8 tiuies as 

 long as 10 ; bristles on 8-10 moderately long, pale. 



Hah. Ceylon, Peradeniya, feeding on the leaves of Litsea 

 chinensis {A, Rutherford, no. 3648, Ent. Research Comm. 

 no. 60). 



