16 R. Tukaliaslil 



thorax yellowish brown. Cornicles black, with tlie tips paler. Cauda yellowisli. 

 AVings hyaline. Head on the dorsal surflice furnished with about 10 rather short to 

 moderately long setae. Frontal tubercles large, on the inner side some^vhat convex 

 and bearing about 2 ratlier long setae. 



Antcainae very long and slender, furnished witii some moderately long setae 

 that are not capitate; the 3rd joint not imbricated, provided with about 6-8 rather 

 small circular sensoria arranged in a single row on the basal half; the 4t)i somewhat 

 imbricated, lacking sensoria; the relative length of joints about as follws: III-235, 

 IV-174, V-142, VI-270 (45+225). Rostrum reaching the middle coxae. The 1st 

 oblique (cubitus) of the front wing slightly curved, the 2nd (media 2) straiglit, the 

 3rd (media 1 ) twice forked, with the upper branch extending to the tip of the wing, 

 stigmatic vein (i-adial sector) moderately curved; hind wings with 2 almost parallel 

 obliques (media and cubitus), booklets 5. Abdomen furnished wih some moderately 

 long setae. 



Cornicles cylindrical, large, stout, gradually expanded toward the base, well 

 reticuLited on the distal half, somewhat imbricated on the basal half, about thrice as 

 long as the cauda, slightly longer than the 6th antennal joint. Cauda stout, broad- 

 est at the base, tapering, about 1.5 times as long as wide, wider than tlio l>asal 

 portion of the cornicle, with about 7 pairs of long lateral bristles on the apical half. 

 Legs very long and slender; femora, especially the hind two pairs, provided with 

 numerous minute circular sensoria scattered over the whole length and about 2 

 or 3 larger sensoria near the base; tibiae stouter than the 3rd antennal joint, 

 provided with many moderate to rather long setae, the front and middle pairs furni- 

 shed with many small transversely narrowed sensoria scattered over the whole 

 length, the hind pair with similar ones on the basal half; tarsi imbricated, hind 

 tarsi slightly shorter than the basil part of the last antennal joint. 

 Length of body-about 3.5 mm. Antenna about 5.0 mm. 

 Fore wing-about 5.0 mm. Cornicle-about 1.0 mm. 



Host. — Smilax afcMopefala, attacking the young leaf. 



Distribution. - Formosa. 



Some specimens were collected by the author on December 2, 1923. This 

 species is peculiar in possessing numerous small sensoria on tlio' legs. 



