4} 
PLATES LIX anp LX. 
DESCRIPTION OF A NEW GENUS OF PAPILIONIDAL. 
——— 
Tue recent arrival in this country of specimens of a new and very 
decided genus in the family Papilionide (a group of comparatively 
small extent as to generic forms), is an event of too much interest, 
in respect to a work, of which so many plates have been devoted to 
the illustration of that family, to render any apology necessary for 
giving coloured figures of these new and splendid insects in the 
‘Arcana Entomologica.” I should not, however, have done this, 
had I not been informed that it was the intention of the Linnean 
Society to publish uncoloured representations of them, accompany- 
ing Mr. Hope’s Memoir, in which they have been described. In 
this Memoir Mr. Hope has proposed for them the generic name of 
TEINOPALPUS, 
in allusion to the porrected palpi, a character in which they differ 
from all the other Papilionidee, and in which respect they resemble 
some of the Nymphalidee. Not only are the palpi porrected, but 
the front of the head is conically produced and clothed with very 
delicate hairs. The eyes are large and lateral, the antenne rather 
short, with the club gradually formed. 
The thorax is very robust, evidently proving the insects to be 
more powerful on the wing than the other Papilionidz; the fore- 
wings are large and triangular, with the tips acute; the apical 
margin in one sex more faleate than in the other. The hind-wings 
are deeply incised along the margin, the meisions becoming tails in 
one sex ; besides which they are furnished with a long narrow tail 
common to both sexes in the ordinary position. The fore-wings 
have the discoidal cell closed at the tip, and emitting the four 
branches which are the absolute character of the Papilionide ; whilst 
the posterior branch of the subcostal vein (which ordinarily branches 
off from the middle of the transverse vein which closes the cell at 
its extremity) here arises close to the emission of the subcostal vein 
itself from the anterior angle of this cell. In consequence of this 
arrangement, it is necessary that the fourth branch of the median 
vein should be more curved than in the other butterflies of this 
