PAPILIONINAE: THE GENUS JASONIADES. 1283 



swollen portion the abdominal joints taper reffularly both in height and width, tlie ter- 

 minal segment viewed from above being well rounded, but slightly and roundly emar- 

 ginato at the tip; the penultimate segment has a posterior transverse fold, inclined 

 backward, produced on either side of the doi-sum into a slight, apprcssed elevation, 

 ending with a very small, rounded tubercle; a scarcely elevated tubercle is also found on 

 the tirst segment just beyond and behind either end of the osmaterial orifice ; the body is 

 abundantly but not at all profusely covered with exceedingly short and tine hairs, 

 although it is to all appearances naked; the terminal segment has longer ones behind. 

 Osmatcriuni proportionally longer than in Pa))ilio, forked almost from the very base, 

 curving backward and a little outward, the forks parting at about a right angle. Spi- 

 racles small, obovate, nearly twice as long as broad. Legs very broad and short at base, 

 the last three joints rather slender, not very long, tapering, appressed, the claws moder- 

 ately large and stout, heeled at the base, curved uniformly and considerably, com- 

 pressed, tapering. Prolegs very short and very stout, rounded at tip, scarcely tapering, 

 provided at tip with a scarcely curving, double row of aljout sixty booklets, the exposed 

 portion being cylindrical, moderately stout, tapering but slightly, bluntly pointed, 

 pretty strongly curved. 



Chrysalis. Body nearly uniform, cylindrical, tapering posteriorly, anteriorly pro- 

 vided with angular prominences, throughout rugulose. Viewed from above, the sides 

 of the abdomen, which occupies more than two-thirds the length of the body, are regu- 

 larly and very slightly convex on the Ijasal four segments; beyond, tapering gradually 

 and regularly; the sides of the thorax are straight and very slightly divergent anteri- 

 orly behind the basal wing tubercle; in front of it greatly narrowed and tapering a 

 little forward to the base of the ocellar prominences. Viewed laterally the anterior 

 portion of the thorax slopes in a nearly straight line upward and considerably back- 

 ward, in continuation of the anterior part of the ocellar prominences and at an angle 

 of about 55° with the lower surface. Behind the mesonotal tubercle the upper surface 

 is nearly straight, barely convex, as far as the tip of the fourth abdominal segment, and 

 at an angle of about 120° with the front portion, the mesonotal tubercle intervening ; the 

 upper surface of the movable segments of the abdomen very broadly rounded; under 

 surface, as far backward as the tips of the wings, slightly curved, very slightly bent 

 a little way beyond the middle of the wings, more nearly straight than in any other 

 of the subfamily; abdominal segments scarcely curved beneath, tapering as on a 

 superior view; surface of the head flattened both above and l)eneath, below a little 

 tumid in the middle, above with a pair of minute, irregular, subdorsal tubercles in the 

 middle; ocellar prominences pretty large, irregular and rugose, subpyraraidal, trigo- 

 nal, having a general divergence of a right angle, the edges, and especially the superior 

 one, strongly carinate, the superior face turned upward and considerably inward and 

 backward, slightly broader than long, its inferior edge straight, minutely tuberculate 

 at the base, its superior and apical rounded but a little prominent in the middle, 

 minutely tuberculate at the base, uniting with each other along the front margin of 

 the prothorax ; in the middle of the front between the prominences narrow, pretty 

 deeply notched; lateral face of the prominences, with the inferior carina straight, 

 the superior bent at an .angle of about 55^ with it, the upper portion bent laterally at a 

 pretty strong angle; viewed from beneath the inferior carinae are slightly bowed lat- 

 erally and extend to the most posterior point of the head ; the prothorax is not regu- 

 larly arched transversely, the middle portion being flattened and slightly hollowed, the 

 sides deeply hollowed, both the anterior and posterior edge raised slightly ; the meso- 

 thorax is tumid, furnished at about the middle of its anterior half with an abrupt, 

 pretty large tubercle, directed upward and slightly forward, very rugulose, subtri- 

 gonal or broader behind than in front, scarcely tapering, docked at summit, broader 

 than high, the posterior surface hollowed, its edges strongly and roughly cariu.ate, the 

 carinae diverging at right angles backward as far as the laterodors.al line and then 

 bent, extending straight backward two-thirds the way to the posterior edge of the 

 segment, diverging again a little and fading out as they approach the margin; the 

 basal wing tubercles are nearlv as large as the mesonotal tubercle, rudely trigonal, the 



