116 E. Takiihashi 



Some viviparous females, lx)th winged and wingless, were coUeeted by Mr. T. 

 Esaki at Abashiri, Hokkaido, on August 30, 1922. Some oviparous females and a 

 male were coUceted by Prof. Xiijima at Monbetsu, Hokkaido, on Novemlx;r 27, 

 1923. 



Stomaphis yanonis Takah. 



DobutHugaku Zassbi (Zool. IMag.), Tokyo, no. 359, p, :'.G9 (1918); Proe. 

 Knt. Soe. Washington, xxi, no. 7, j). 17G {l'.»19) and Apliididae of Formo8a-2, 

 p. 139 ( 19:23); Honda, Biol. Bull. XL, p. 350 ( 1921 ). 



Host.-t <7f/.s sinemi.i. 



Distribution. -Japan : Tokyo. 



In the wingless viviparous femnlrs collected on June 15, 1923, at Meguro, 

 Tokyo, by the author, the following two forms were represented: ( 1 ) Body about 

 5mm. in length; the 3rd antennal joint ]>rovided witli 0-2 sensoria on tiie distal part, 

 the 4th with from 2-8 circular sensoria of various sizes arranged in a row over the 

 whole lengtli. ( 2 ) Body about 4mm. in length; the 3rd antennal joint provided 

 with from 11-14 circular sensoria of various sizes in a row over th(^ whole length; 

 the 4 th with 5-7 similar sensoria. The latter form is apterous, but the 3rd antennal 

 joint is provided with mure than 10 sensoria and the Iwdy is shorter, as in tlie 

 winged vivij)arous female. In tJie author's opinion this is an interniediate. 



Oregma japonica n. sp. 



(PI. V,B, tigs. 1-2) 



Wingless viviparous female. 



Almost black; head and tliorax somewliat brownish. Eyes black. Antennae 

 and legs brownish black. Body rather flat,, very wide, covered with wax. Head 

 fused with tJie prothorax, provided witli many long bristles which are almost as long 

 as the first antennal joint. Hornlets short, much shorter than the 2nd antennal joint, 

 rather sharply jwinted. Antennae 4-joint<!d, provided with a few bristles; the 3rd 

 joint with the apical sensorium very small; the 4th somewhat imbricated on tlie distal 

 part; the relative length of joints as follows: III-'.i3, IV-22. Hostrum stout, not 

 reaching the middle coxae. Abdomen nearly circular, provided with some mode- 

 rately long bristles. Cornicles large, much wider than long. Cauda much wider 

 than long, constricted at the base provided with some bristles. Anal plate divided 

 into two lobes. Legs provided with many long fine hairs; hind tarsi longer than the 

 3rd antennal joint. 



Head on the dorsal surface l)elween the eyes pruvided witli two [iuirs of groups 



