Mr. R. S. Bagnall on new Tliysanoplera. 265 



seta between the outer long pair of postero-marginal seta? and 

 the postero-angular macroehastae. 



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

 5 <j> $ and 1 <$ with F. gemina and F. o.vyura, spp. n. 

 ( Veztnyi). 



FrankHniella gemina, sp. n. 



? . — Tiiis species is so like F. distinguenda that a separate 

 description is unnecessary. It is chiefly recognized by the 

 well-developed cephalic and the longer antero- and postero- 

 marginal pronotal selae. The antennas are comparatively a 

 little longer and apparently a shade more slender ; the relative 

 lengths of joints 3-8 are approximately : — 58 : 54 : 42 : 56 : 9 

 and 13. 



The comparative lengths of the cephalic and pronotal 

 macrochoetse are as follows : — 



F. gemina. F. distingumda. 



Head : 



Interocellar 18 8 



Postocular 13 7 



Pkonotum : 



Antero-angular 24 19 



Antero-marginal -, 20 11 



Postero-angular, outer 20 19 



„ „ inner 27 2G 



Postero-marginal, median 15 11 



<$ . — With the distinguishing cephalic and pronotal chasto- 

 taxy as in the $ . Terminal segments with the macrochastae 

 longer than in distinguenda^ but the inner pair of specialized 

 setae of the ninth tergite shorter and less slender ; otherwise 

 as in distinguenda. I can find no trace of a minor seta 

 between the long outer pair of tergal setae and the postero- 

 angular macrochsetse. 



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

 3 ? ? and 1 <$ with F. distinguenda and F. oxyura, spp. n. 

 (Vezenyi). 



b. Larger dark brown species, antennal joints 3 to 5 and base 

 of 6 light yellow. 



FrankHniella fulvipes, sp. n. 



? . — Length about 1*3 mm. 

 Colour chestnut-brown j first two antennal joints light 



