2G8 Mr. R. S. Bagnall 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 of the pronotum. Legs normal, series 

 of spines of hind tibiae 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, minuta, and fusca — -by the coloration of 

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

 of the end of the abdomen. 



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

 ? $ only (Vezenyi). 



Frankliniella insularis (Franklin). 



Hub. South America, Los Trincheras (Venezuela) ; 

 Dec. 1891, both sexes [Meinert). 



Frankliniella varicorne, 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. Antennae with joints 2 and 

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



