ArniDID.E OI-- FORMOSA. 



49 



M;mj wingless vi\i parous females aud a Duml)er of bmcliYptei< .us forms 

 (iutermediates) were observed ou Jul^- 30, 1922, near Taihoku. 



The apliis directs the Lead do\\iiward3 when at rest aud walks very 

 actively wLeu distm-lied. 



(1) Heail of EiiJiKhimx rileyi. ■\ViU? (Wingles-s Tiviparous ^) 



(2) Head of E. pinifonaosanus Takali. (Wingless viviparous ^) 



(3) Heal of E. pimfonnosdnntt Takali. (Winged viviijaroivs ^) 



Oregma pauicola (Takali.) 

 (PI. V. B, fig. 5 cV PL VI. B, figs. 2—3 & PI. IX, A) 



Aplii':lid;o of Foruiosa— 1, p. 90 (W21). 



A\'iiigless ^•i\^paro^l3 female. 



Dark brown, some^\■llat purplish. Body oval, moderately cciuvex on the 

 dorsum, covered with some waxy secretions. Wax-pores well developed, (:>f 

 " montana-iyY.e " of v. d. Goi it. Head fused with the prothorax, prm'ided 

 with a few bristles. Eyes \-ery small, coujposed of 3 facets. Antenna} \ery 

 short, 4- jointed, witli a few bristles, the 3rd joint with a very small apical 

 sensorium ; the relative length (if joints as follows ; III — 15, IV — 15. 



Hornlets almost as long as or sh(.)rter than the 2ud auteuual joint, 

 roiuided at the apes, llostrum very st<:>ut, not reaching the midlle coxa\ 

 Cornicles \oYy short, much wider thau long, sti'iate, expanded toward thhe base. 

 Cauda much wider than 1( mg, constricted at the base, provided with some long 

 bristles. 



Anal pkte bilofed, with soiue loug bristles. Legs provided \\ith some 



