426 EHOPALOCERA. 



G. legga is very closely allied to G. pyralina, and in some places the two forms seem 

 to blend, the chief distinctive character of the white terminal portion of the secondaries 

 beneath almost disappearing. When this character is fully developed the two insects 

 can readily be distinguished. 



Though widely distributed in South America, G. begga only just enters our region, 

 penetrating as far as Chiriqui, where both Herr Ribbe and Mr. Champion obtained 

 specimens. 



Herr Semper sent us named specimens from Brazil of this species, determined from 

 Plotz's drawing, and these agree with an example compared with M. JVJabille's type 

 of H. alcandra kindly lent us for examination. 



ANISOCHOEIA. 



Anisochoria, Mabille, Bull. Soc. Eat. Fr. ser. 5, vi. p. cci (1876); Wats. P. Z. S. 1893, p. 59. 



M. Mabille founded this genus in 1876 upon his A. polysticta and A. oligosticta, 

 both from Colombia, and afterwards added to it other species, including his A. albida, 

 all of which appear to be strictly congeneric. In coloration, however, the last- 

 mentioned species approaches Helias albiplaga, Feld., and Antigonus cegides, Herr.- 

 Sch., also included in Anisochoria by Capt. Watson *, but which, as will be seen below, 

 we think it advisable to separate therefrom. 



Anisochoria, as thus restricted, is distinguished by its long, porrect, very conspicuous 

 palpi, the second joint of which is densely clothed with long hairs, beyond which the 

 slightly depressed terminal joint projects. The costa of the primaries is evenly curved 

 and the apex distinctly truncate, the rest of the outer margin and the inner margin 

 nearly straight ; there is no costal fold ; the third median segment is short, the second 

 segment curved ; the discocellulars oblique, the lower shorter than the middle. The 

 secondaries have a rather pronounced apical angle, the costa being nearly straight 

 towards this angle ; the outer margin is rounded and rather prominent m the middle, 

 the discocellulars and radial very faint ; the third median segment is short, the second 

 subcostal segment long, about equal to the second median segment. The hind tibiae 

 have two pairs of spurs and a tuft. The harpes of the male genitalia are very nearly 

 symmetrical. 



The only species of Anisochoria found within our limits is A. polysticta, but there 

 are many in Tropical South America, of which very few have been described. These 

 range from Colombia to Guiana, South Brazil, and Paraguay. 



* Capt. Watsen seems to have taken his characters of the genus from Helias albiplaga, and not from the 

 typical species. 



