~ ADELPHA. 305 
This, perhaps, is a form more nearly allied to A. erotia than to A.lerna. It is found 
in Guatemala, and differs from the former species in the white band of the primaries 
extending from the inner margin to the second median branch. 
We are doubtful whether this character will ultimately be tenable, as the amount of 
white in this part of the wing-band is certainly variable. Mr. Bates described this 
species from a female specimen, and compared it with A. iphicla, which is not its 
nearest ally }. 
In addition to the type we have several male examples from Guatemala, all from the 
valley of the Polochic. We have also one from Cordova in Mexico. 
19. Adelpha pithys. (Tab. XXVIII figg. 7, 8.) 
Heterochroa pithys, Bates, Ent. Monthl. Mag. i. p. 128°. 
Alis brunneis ad basin et marginibus indistincte lineolatis; anticis plaga submarginali bisinuata fulva, fascia 
communi lata a vena mediana usque ad angulum posticarum analem extensa alba, angulo ipso fulvo 
nigro bipunctato ; subtus pallidissime fulvis, plaga et fascia communi sicut supra, alis ambobus ad basin 
lineolatis, ad marginem externum indistincte fasciolatis. 
Hab. Guaremata, Tablelands (. D. G. & O. S.1) and Polochic valley (Hague). 
This is a rare species in Guatemala, for besides the type (a male now figured) obtained 
by us in the highlands near Duefias!, only two other examples have reached us, and 
these were sent by Mr. Hague from the valley of the Rio Polochic. 
It is closely allied to A. donysa, but differs in having the white band common to both 
wings wider, and in the markings of the underside being more faintly impressed. Both 
species have the fulvous spot at the anal angle of the secondaries, in which are two 
black dots. | 
So far as Guatemala is concerned, both A. pithys and A. donysa seem to fly together 
at altitudes varying from upwards of 5000 feet to as low as 2000 feet and under. 
A. pithys, however, has not yet been traced to Mexico. 
20. Adelpha donysa. 
Heterochroa donysa, Hew. Ann. & Mag. N. H. xx. p. 260, t. 20. f. 5°. 
Heterochroa rela, Boisd. Lép. Guat. p. 46°. 
A, pithys similis sed major, fascia alarum communi alba multo angustiore et pictura alarum subtus multo 
obscuriore et ad basin griseo tincta. 
Hab. Mexico!2; Guatemaa, Calderas (. D. G. & O. S.), Polochic valley (Hague) ; 
Honpvuras ? 2. 
This species was described by Hewitson as long ago as 18471 from specimens in the 
British Museum and his own collection said to have been sent from Mexico !. 
Boisduval’s A. rela also came from Mexico and belongs here, as an examination of 
the type proves. Honduras is also given as within its range; but this is perhaps 
BIOL. CENTR.-AMER., Rhopal., Vol. 1., April 1884. 28 
