2GS Mr. R. S. Bagriall on new Thysanoptera. 



and 4 plainly broader than 6. Relative lengths of joints 3 to 

 8 approximately as follows : — 42 (including pedicel) : 39 : 27 : 

 41 : 7 : 9. 



Pronotum a little longer than the head, transverse ; seta at 

 each anterior angle about 0*3 and the outer pair at each 

 posterior angle 0"4 the length of the pronotum ; the inner 

 postero-angular pair slightly longer than the outer. The 

 antero-marginal and the postero-marginal median pair shorter, 

 about 0*2 the length o£ the pronotum. Legs normal, series 

 of spines of hind tibioe within numbering 8 to 9 ; not particu- 

 larly strong or conspicuous. Wings reaching to the seventh 

 abdominal segment, fore-wings about thirteen times as long 

 as broad near middle, veins strong, ribbed; bristles mode- 

 rately long ; costa, fore-vein, and hind- vein with about 23, 

 3 + 15 (13 to 17), and 14 (12 to 16) bristles respectively, 

 apparently variable ; cilia of lower margin wavy. 



Abdomen elongate, a little broader than the pterothorax, 

 with the last segments more than particularly long and 

 sharply pointed. Last segment about 0'6 as broad at base 

 as long, open for most of its length dorsally. Bristles on 

 segments 9 and 10 moderately long, slender, the longest 

 scarcely as long as the length of segment 10. Tergite 8 with 

 a regularly set fringe of about twelve hair-like chitinous 

 projections, long and fragile, with stout bases. 



Recognized from the other small brown species of the 

 genus — tympanona, rninuta, and fusca — by the coloration of 

 the antennas and legs, and distinctive on account of the shape 

 of the end of the abdomen. 



Bab. South America, Puerto Max (Paraguay) ; 1905, 

 ? ? only (Vezenyi). 



Frankliniella insularis (Franklin). 



llab. South America, Los Trincheras (Venezuela) ; 

 Dec. 1891, both sexes [Meinert). 



Franldiniella van'corne, sp. n. 



$ . — Length about 1*2 mm. 



General colour yellowish-brown ; head inclined to be 

 lighter, shaded with grey, and abdomen of a deeper grey- 

 brown. Thorax with light red hypodermal pigmentation. 

 Wings very lightly washed with a suspicion of greyish- 

 yellow, cilia light grey-brown. Antennas with joints 2 and 

 6 to 8 dark brown, 1 very pale greyish-yellow, 3 and 5 dirty 



