Apliididae of Formosa — 4. 47 



Winged viviparous female 

 Differs from M. bamhusifoliae Takali. in the following points : 



(1) Green, head and thorax very slightly brownish, with no spots and 

 -tripos on the dorsum of body. 



(2) The 3rd antenna] joint black on the apical part and slightly 

 dusky on the basal part; the 4th black on the distal half; the 5th and Gth 

 blackish; sensoria on the 3rd somewhat larger. 



(3) Body, antennae and legs a little shorter. 

 Host. — Banilmsa sp. 



Distribution. — Formosa : Taihoku. Japan. 



Hitherto unrecorded from Formosa. 



A few winged viviparous females were collected by the author on March 

 9, 1924. at Taih.»ku. 



The 3rd antennal joint of the winged viviparous female is provided with 

 about 4-7 subcircular or oval sensoria arranged in a single row on the basal 

 portion; and the relative length of the antennal joints is about as follows: 

 III-147, IV-93, V-79, VI-82 (45 + 37). 



Length of body — about 2.0 mm. Antenna — about 1.75 mm. 



Fore wing — about 2.5 mm. 



Oregma tattakana n. sp. 



(PL III, B, figs. 7-8) 

 Wingless viviparous female 

 Almost Mack, somewhat covered with a powder, and with a somewhat 

 purplish tinge. (Nymph yellowish). Body provided with many long fine hairs 

 that arc longer than the 3rd antennal joint. Head fused with the prothorax. 

 Horns large, very stout, almost as long as or a little longer than the 1st antenna! 

 joint, almost as stout as the 2nd antennal joint, not expanded at the base, not 

 narrowed toward the apex, but sometimes very slightly narrowed toward the base, 

 broadly rounded at the apex, a little longer than wide, far separated from each 

 other, with a few line hairs. Eyes composed of 3, facets. Antennae very short, 

 rather stout, 4-jointed, almost as long as the front tibia, with a few fine hairs 

 that are much shorter than those on the head: the 3rd joint narrowed toward 

 the base, the sensorium very small; the 4th almost as long as the basal 2 joints 

 taken together; the relative length of joints about as follows: 111-18, IV-16. 



