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§ IX. The u Maracuja [or Passion-flower ] Butterflies ." 1 
The genera Heliconius , Eueides , Golaenis , and Dione ( Agraulis ) have 
been until now commonly divided between the two sub-families of 
the Heliconinae and Nymphalinae. Golaenis and Dione are placed in 
the latter; Eueides is placed sometimes by the side of Golaenis in the 
Nymphalinae (by Doubleday and Felder), or again with Heliconius in 
the Heliconinae (by Herrich-Schaeffer and Kirby).—Neither of these 
arrangements is in accordance with nature. Golaenis and Dione must 
be removed from the Nymphalinae , and united with Heliconius and Eueides 
in a separate sub-family. 
The present paper sets forth in few words the proof of this assertion. 
The four above-named genera agree in the following particulars :— 
1. All their species inhabit the warmer parts of America, and all, as 
far as is known, lay their eggs on species of “Maracuja” [or Passion¬ 
flower] (Passiflorae). This is true of Heliconius eucrate [ narcaea ~\, Eueides 
'Isabella and aliphera , Golaenis diclo and julia , Dione vanillae and juno. 
No Nymphaline larva has hitherto been found on the Maracuja. 
2. The eggs are yellow, shaped like a thimble, and the surface is 
covered with longitudinal and transverse furrows. Similar eggs do 
certainly occur among other diurnal Lepidoptera ; but whether among 
the Nymphalinae , I do not know. On the other hand, one finds in the 
latter sub-family quite aberrant shapes, e.g. those of Siderone , resembling 
a broad, inverted smooth thimble, flattened at the top. 
3. The larvae are spinose. The head bears two spines (in Dione juno 
represented only by two short pointed tubercles). The prothorax is 
usually spineless : in Dione juno alone is there a pair of small spines. 
Mesothorax and metathorax bear each two pairs of spines, placed not in 
the same transverse line, but one pair, the upper, about midway between 
the anterior and posterior margins, and the other close to the anterior 
margin of the segment. The abdominal segments, except the last, have 
each three pairs of spines placed in the same transverse line with each 
other and with the spiracles. The last segment bears two pairs of spines, 
of which the lower is the more posteriorly placed. 
Among the Nymphalinae also there are many spinous larvae ; but I 
do not know of any having exactly this arrangement of the spines, which, 
1 Stettin Ent. Zeit., XXXVIII. (1877), pp. 492-496. 
