53 K. Tal<a)i;islu 



Brachysiphoiiiella gramini Takali. 

 (PI. IV, A, figs. 2-5) 

 Apliidiilae of Formo.sa, part 1, p. G2 (1921) ami p.irt 2, pp. 43 autl 113 (1923). 



Winged viviparous tomale. 

 Head, eyes, auteniuir', thorax, coriiiclcR asid cauda black. Alidoiin'ii lilack-, 

 sligliUy grotuiish. AViugs liyaliiio; stigma gray; veins dusky. FmiKira mostly 

 Ijlack, paler at the bases; tibiae mostly brownisli, ■\vitii blaek aplecs; tarsi blaek. 

 B'^dy stout, covered (juite slightly with a powder. Head with about 8 moderately 

 long bristles on the dors.il surface. Eyes very large, but not markedly jirotulwrant, 

 with very small ocular tubercles. Frontal tubercles almost lacking. Antennae 

 rather stout, almost without hairs; the 3rd 'o'nit provided with about 2-3-30 protu- 

 berant, rather large, circular sens'jria scattered over the whol'; length; tlic 4t]i willi 

 aliout 22 similar sonsoria; the oth somewhat imbricated, with about G-13 sensoria; 

 the <)th imiiricated; the relative length of _'oin(s about as follows: llJ-49, IV -39, 

 V-C9, VI-73 (25+48;. Eostrum stout, not reaching the middle coxae. Abdounu 

 without tubercles, provided with a few bristles on the dorsum, and with many 

 short bristles on the ventral surface of each segment. Wings with the veins nor- 

 mal; hind wings with 2 slightly divergent obliques; booklets 2 or 3. Cornicles 

 almost as in the wingless form. Cauda long, more slender than that of tlic wingless 

 I'oriu, much longer I,' an tlic coniick-, longer than (he basal part of the last anlciuia! 

 joini, aboul 1 .-"j (imcs as long as (he hind taisi, with 2 or •> [)airs of ra'hcr short 

 lateral bristles. Ij(^gs provided witli many nioilci-atcly long setae; hind tarsi almost 

 as long as the l);sal part of (lie las( an(ennal joint. 



Length of l)ody-aljout 1.4 mm. Antenna about 1.05 mm. 

 Fore wing -about 2.2 mm. 



Tlic specimens here described dilicr from those previously described in j)osse- 

 sslng more sensoria on the antennae. 



Full-grown nymph of winged viviparous lemale. 

 Head furnished with a few rather short bristles. Eyes large, not protuberant, 

 with small ocular tubercles. Antennae rather stout, with a few short hairs; the 4(h 

 joint very slightly imbricated; the 5th more sb'udcr (ban tbc4t]i, somewhat inda-icated, 

 with a very small apical sensorium; the relative length of joints as follows: lTI-44, 

 IV-34, V-38, VI-70 (23+47). Rostrum very stout, not reaching the middle coxae. 

 Wing-]i.ids blaek. Abdomen with some bristles on trhe ventral surface. Cornicles 

 almost as long as wide, slightly tapering. Cauda somewhat triangular when seen 



