226 _ -HETEROCERA. 
3. Krilusa celivitta. (Tab. LXI. fig. 19, ¢.) 
Erilusa celivitta, Walk. Cat. xxxiv. p. 1877°. 
Hab. Mexico (Boucard, in mus. D.); Panama, Chiriqui (Ribbe; Trotsch, in mus. 
Staudinger), Bugaba (Champion).—Amazons, Para ?. 
Five specimens, showing no variation. We figure an example from Bugaba, The 
female is rather larger than the male, and it has the hyaline markings broader. 
4, Erilusa croceiceps. (Tab. LXI. fig. 20, ¢ .) 
Erilusa croceiceps, Walk. Cat. xxxiv. p. 1875*; Feld. Reise der Novara, Lep. t. 186. fig. 31(¢)’; 
Butl. Ill. Lep. Het. i. p. 62, t. 20. fig. 4 (2) °*. 
Hab. Panama, Chiriqui (Trétsch, in mus. Staudinger), Volcan de Chiriqui 2000 to 
3000 feet, David (Champion).—Amazons *, Para !, Ega 13. 
I have seen three specimens of this species from the southern part of our region. 
We figure a male from the Volcan de Chiriqui. 
5. Erilusa purpuralis, sp.n. (Tab. LXI. fig. 21, 9.) 
Female. Primaries and secondaries uniformly dark glossy purplish-brown, the inner margin of the secondaries 
and the fringe greyish-black ; the underside paler than above: head and collar orange, the antenne 
brown, the thorax, abdomen, and legs greyish-black. Expanse 1? inch. 
Hab. Costa Rica, Candelaria Mts. (Underwood). 
One specimen. This species resembles Hoterodes gilippusalis, Walk., from the 
Amazons, from which it may be at once distinguished by the yellow head and collar. 
ACRIDURA. 
Acridura, Butler, Ann. & Mag. Nat. Hist. (4) xv. p. 898 (1875) ; Trans. Ent. Soc. Lond. 1878, 
p. 122. 
Phryctena, Oberthiir, Etudes d’Ent. vi. p. 114 (1881). 
This genus was founded by Mr. Butler upon two species from Espiritu Santo, both 
of which range northwards to the Mexican State of Vera Cruz. He first referred it to 
the family Arctiide (Zygeenoid type), but subsequently to the A’geriide. M. Oberthir 
referred his genus Phryctena to the Pyralide, to which family I have very little 
doubt it really belongs. -Acridura appears to me to be nearly allied to Erilusa, Walk. 
Three additional species are here referred to the genus, one with some doubt. 
1. Acridura gryllina. 
Acridura gryllina, Butl. Ann. & Mag. Nat. Hist. (4) xv. p. 398°; Trans. Ent. Soc. Lond. 1878, 
p. 125, t. 5. fig. 6”. 
Phryctena glaucopidalis, Oberth. Etudes d’Ent. vi. p. 114, t. 20. fig. 4 (¢)’. 
Hab. Mexico, Cordova (Sallé?), Atoyac in Vera Cruz (H. H. Smith); Guatemaa, 
San Gerdénimo (Champion) ; Panama, Chiriqui (Ribbe, in mus. Staudinger), David, Volcan 
