428 MK. A. G. BUTLER ON THE 



discal hyaline spot of primaries, and the smaller discoidal spot : ex- 

 panse of wings 43 millims. 



2 . Very like A. meones $ , but without the white shoulder-spots, and 

 with an oblique trifid or even quadrifid hyaline discal patch in prima- 

 ries : exjjanse of wings 4/ millims. 



^ , St. Paulo {Bates); $, Ega (Bates), Tabatinga (Degand). 



Type, B.M. 



It is a curious circumstance that our male A. Stretchn came 

 in the same Peruvian collection with female A. parvipennis, and. 

 our male A. parvipennis in the same St. -Paulo collection with A. 

 Stretchii 2 ■ Still the localities are not widely sundered ; and there- 

 fore the value of the two species need not on that account be 

 called in question. The genus may be divided as follows : — 



Div. A. Secondaries of male large. 



a. Shoulders of both sexes cream-coloured .... A. meones. 



h. Shoulders of both sexes black, discal spot of female rounded, 



scarlet abdominal spots small A. brasiliensis. 



c. Scarlet colouring obsolescent, dorsal abdominal spots only pre- 

 sent at the base in both sexes ; hyaline wing-spots larger. 



A. Stretchii. 

 Div. B. Secondaries of male small. 



a. Hyaline discal wing-spot of male quadrifid, small at costa, and 

 gradually enlarging to second median branch ; scarlet wing- 

 streaks well defined A. diversipennis. 



b. Hyaline discal spot more oblique, trifid in male, sometimes 

 quadrifid in female, subcostal hyaline spot small. 



A. parvipennis. 



The last two may prove to be synonymous ; but if so, the spe- 

 cies must have a tremendous range. Still there is no doubt that, 

 at most, A. parvipennis can only be regarded as the Upper- Amazon 

 type of "Walker's species, although the appendices of the male differ 

 as much as in the other forms in this genus. 



6. A.? LATERALIS = Euchromia lateralis, Guerin, Ic. Regne Anim. 



p. 503. 

 Para. 



Grenus Scepsis, Walker. 



This genus scarcely differs from Sciopsyche in the neuration of 

 secondaries ; I only know one species of the group, although I 

 have little doubt that several species recently described by Ame- 

 rican avithors are referable to it. 



