THE CANADIAN ENTOMOLOGIST 289 



tarsi clear light yellow, sometimes infuscated at the tips; tibiae 

 often with a sub-basal aunulus. In the vial were several specimens 

 of E. asymmetrica, a closely allied form, and most of the legs evi- 

 dently belong to that species. Two legs in the vial are very dif- 

 ferent and may belong to this little species, this being rendered 

 probable by the size; in these the entire legs are clear, light yellow, 

 the femora with a rather narrow subapical dark brown ring). 



Wings spotted with brown. 



Abdomen: Tergum dull brownish yellow, apex and lateral 

 margins of the sclerites brown. Hypopygium unsymmetrical as in 

 the genus, the 9th abdominal segment being twisted one-half 

 around. Suture between the 9th tergite and the 9th sternite not 

 indicated. The 9th tergite is broad and long, its hind margin pro- 

 duced caudad in a wide, thin plate which is broadly and rather 

 deeply notched at its middle ; no chitinized hooks at its apex. The 

 pleuritcs are convex outerly (produced into two apical appendages), 

 the base (dorsal) produced entad and cephalad in a long, chitinized 

 hook; the ventral edge of the pleura near the sternum possesses a 

 small chitinized organ which is directed caudad and is provided 

 with two or three denticulae; of the two apical appendages, the 

 ventral one is chitinized, the dorsal one is fieshy, the second gona- 

 pophyses are close together, the chitinized tips rather long and 

 .deeply divided. (See plate X, figs. 5 and 6). 



Holotype, o^. Vial 6, April 25, 1912; Tokio, Japan. 



Erioptera {Acy phono) asymmetrica, sp. n. 



Resembles incongruens closely, but is larger, the coloration 

 darker, especially on the pleurae and usually on the abdomen. 

 Wings hyaline, spotted with brown, varying considerably in the 

 intensity and size of the markings; in some the dots are small, not 

 confluent, in the darker specim.ens the spots on the costal half of 

 the wing tend to flow together to form large blotches. The male 

 genitalia of the two species is remarkably different. (See plate III, 

 fig. 15, wing.) 



The hypopygium is, as in the genus, asymmetrical, the usual 

 dorsal portions of the 9th sclerites being switched around on a level 

 with the pleural sutures of the remaining segments. (See fig. 7-9, 

 plate X), suture between 9th tergite and sternite obliterated, 9th 



