ADELPHA. 301 
e, Band common to both wings white. 
10. Adelpha fessonia. (Tab. XXIX. figg. 18, 19.) 
Heterochroa fessonia, Hew. Ann. & Mag. N. H. p. 260, t. 20. f. 67; Mén. Cat. Mus. Petr. Lep. ul. 
p. 119’; Butl. & Druce, P. Z. 8. 1874, p. 343°. 
Heterochroa cestus, Boisd. Lép. Guat. p. 45 *. 
Alis brunneis, indistincte lineolis obscurioribus notatis, fascia communi a costa anticarum (ad venam medianam 
angulata) ad angulum posticarum analem transeunte alba; anticis plaga magna subapicali costam attingente 
fulva; subtus rufescentibus fascia communi alba ut supra, altera angustiore basi propiore, plaga fulva 
subapicali anticarum albido marginata et inter venas saturate fulvo notata; maculis indistinctis submar- 
ginalibus nigro-brunneis. 
Hab. Mexico, Presidio (Forrer), Oaxaca (Fenochio); GuatemMaa, Motagua valley 
(F. D. G. & O.S.); Honpuras (Mus. Brit.1); Nicaragua 2, Chontales (Belt); Costa Rica 
(Van Patten), Irazu (Rogers); Panama, David (Champion). 
The white band running through both wings from the costa of the primaries towards 
the anal angle of the secondaries distinguishes this species from all others except 
A. cestus of Venezuela, a species with which it is no doubt closely allied. It differs, 
however, in having a much larger and rounder spot at the apex of the primaries, and 
the white transverse band of the same wings is somewhat abruptly bent where it crosses 
the median nervure. 
Hewitson first described A. fessonia from a specimen in the British Museum from 
Honduras; we now trace it northward through Guatemala to the Mexican State of 
Durango. Southward it spreads to the State of Panama, but it appears to be nowhere 
common. Our only Guatemalan specimen was captured by ourselves in the valley of 
the Motagua. 
It is probably this species which Boisduval refers to under the name of /eterochroa 
cestus, saying that it is fairly common in Honduras *. 
d", Band on primaries wholly or almost entirely fulvous; band on secondaries white. 
11. Adelpha erotia. (Tab. XXIX. figg. 14, 15.) 
Heterochroa erotia, Hew. Ann. & Mag. N. H. xx. p. 259, t. 20. f. 3’; Bates, Journ. Ent. ii. p. 332’; 
Butl. & Druce, P. Z. 8. 1874, p. 342°. 
Alis brunneis ad basin et marginibus indistincte lineolatis; anticis fascia irregulari a costa ad marginem 
internum margini externo subparallela, maculisque duabus aut tribus subapicalibus fulvis ; posticis fascia 
mediana alba bisectis ; subtus ferrugineis fasciis alarum sicut supra in anticis maculosis, anticis ad basin 
maculis griseo-albis nigro marginatis notatis; serie punctorum submarginalium albida ; posticis ad basin 
lineis duabus fusco-marginatis griseo-albis transfasciatis ; area submarginali fasciis tribus notata, extima 
maculosa albida. 
Hab. Guatemata, Polochic valley (Hague); Nicaracua, Chontales (Belt); Costa Rica 
(Van Patten®), Cache, Irazu (Rogers); Panama, Chiriqui, Veraguas (Arcé), Bugaba 
