Gsst° >) 
XIX. Description of a new genus and species of Papi- 
lionide from Mexico. By Osprrr Satvin, M.A., 
F.R.S., &e. 
[Read October 4th, 1893.] 
BaRronia, gen. noy. 
Allied to Papilio, and with the arrangement of the median ner- 
vure and its branches with relation to the lower disco-cellular of 
the primaries similar; the subcostal, however, has only two 
branches instead of four, the first arising at a distance from the 
end of the cell, about equal to its width, and the second the same 
distance beyond ; the usual third branch from the end of the cell 
is wanting, as well as either the first or second before the end of 
the cell; the upper disco-cellular is short, and the middle disco- 
cellular about twice as long as the lower. Antenne very short, 
less than the first median segment of the primaries, with a com- 
paratively long thick club. Palpi very short, hardly perceptible 
amongst the long hairs on either side of the haustellum. Frontal 
scales long and hair-like, but drawn downwards between the eyes, 
and not pro-erect as in Papilio. Legs with short spiny joints; a 
distinct epyphisis on the anterior tarsi. 
Baronia brevicornis, sp. n. 
Wings brown; fringe between the nervules narrowly white; 
primaries with three arched series of oval ochraceous spots—the 
first with four spots, one in the cell, the fourth near the inner 
margin; the second with seven, all beyond the cell, those between 
the median branches and at the anal angle quite small; the third 
with four subapical spots; secondaries with the costal two-thirds 
of the cell and beyond it nearly to the costa yellow ochre; three 
spots forming a triangle beneath the cell, the longest forming the 
base below the first median branch, and the smallest (the apex) 
above the second branch, and a discal row of six spots also yellow 
ochre. Beneath as above, but paler; the subapical series of spots 
on the primaries and an additional submarginal row silver; 
Secondaries with all the spots silver, the discal row larger and 
more elongated, and a submarginal row near the anal angle. 
Primaries slightly produced, the apex rounded, the outer margin 
TRANS. ENT. SOC, LOND. 1893.—PARTIV. (DEC.) 2A 
