IIESPEHU)!: EPARGYREUS TITYRUS. 1401 



repeated bcueatb, the apical half of the cell less heavily clothed with scales than the 

 other ilark parts of the wing, aiul the outer margin, above the lower median nervule, 

 for the deptli of about an Interspace, but more broailly in the median interspaces than 

 above, paler than within and also llecked, not prof usely, with vitreous scales having a pur- 

 plish reflection and giving tl\e border a hoary appearance ; occasionally the whole wing, 

 and especially tlie upper half, is very distantly ami very inconspicuously flecked with 

 ochraoeous scales ; inner border as far as sulimedian paler tlian the ground color; fringe 

 pale ochraceous, broadly interrupted at the nervurc tips witli 1)lackish fuscous, wliicli 

 Is most distinct in the middle, being usually overlaid on the l)asal third by ocliraceous. 

 Sinil xoings more uniform in tint than the front pair, being equally clothed throughout ; 

 ochraceous scales are, however, sometimes sparsely scattered over all but the central 

 parts of the wing, although often confined to the base; in the centre of the wing is a 

 large, transverse, chrystalline, snow white spot, sending towards the costal border a 

 usually continuous, rather narrow spur of the same; the main portion of the spot is 

 subtriangular with the angles well rounded, its broadest portion extending from just 

 beyond the flrst divarication of the median to the middle of the basal four-flfthsof the 

 upper median nervule and limited above by that nervule on the outer half, but on the 

 Inner encroaching a little on the cell ; the lower rounded extremity or apex of the triangle 

 reaches fully to the middle of the lower half of the medio-submedian interspace, fully 

 as far from the outer border as the entii-e widtli of that interspace ; the exterior limit of 

 the spot is slightly concave, with a slight bend at the middle median nervure; the in- 

 terior border is arched a little ; from the middle of the upper side or base, the spot 

 extends as a nearly equal bar with straight sides to the upper subcostal nervule, fol- 

 lowing the direction of the vein which closes the cell and which runs through its mid- 

 dle; the bar is usually between one-fourth and one-third as wide as the base of the 

 spot from which it arises and in the subcostal interspace has often a rounded projec- 

 tion toward the base ; from the upper exterior angle of this bar a moderately slender 

 bar or lunule, only its interior edge distinctly defined, traverses the costo-subcostal 

 interspace, but is often separated from the broader bar to a slight extent. Beyond 

 the band thus formed is a slender, transverse, powdery stripe of scattered whitish or 

 yellowish scales subparallel to the outer margin but more distant from it above than 

 below, crossing the upper median ner\-ule at its middle and extending from the upper 

 subcostal to the submedian nervure ; it is often wholly or partially obsolete ; the outer 

 border of the wing is more or less broadly flecked with vitreous scales having a paler 

 purplish or violet reflection, between the upper subcostal and lower median nervules ; 

 usually this belt occupies the width of an interspace in the middle and tapers a little 

 above anil below, giving this portion of the wing a hoary appearance ; the inner margin 

 as far as the submedian nervure is more or less tinged with very dull olivaceous and 

 nearly concealed by long hairs of the same color ; above the middle of the medio-sub- 

 median interspace the fringe resembles that of the fore wings, below this it is neariy 

 of the ground color of the wing. 



Abdomen above very dark purplish brown, the tips of the segments narrowly and 

 inconspicuously red, the whole basal half partially concealed by long tawny olivaceous 

 hairs ; beneath blackish brown flecked witli long fulvous scales becoming brownish 

 toward tlie base and at the segment tips narrowly and inconspicuously red ; hairs at 

 the extremity of the abdomen dark brown, but beneath a little yellowish; upper organ 

 of male appendages (35 : 3G) with the hooks continuing downward like the posterior 

 curve of the centrum, united at base, but divergent, at tip a little incurved, their blunt 

 extremity with a scarcely perceptible inferior uncination ; lateral arms approximatmg 

 a little and in their apical half a little expanded ; a little larger than the hooks but 

 otherwise similar. Clasps more than twice as long as the breadth of the base, the 

 basal half broad and bearing above an elevated obovate lobe, a third as high as the 

 breadth of the clasp at its base and having between it and the base of the clasp a deep 

 rounded excision ; beyond it the clasp tapers rapidly half way to the tip, then becomes 

 nearly parallel and terminates in a produced pointed apex subdenticulate on its upper 

 edge, directed upward and backward and cun'ed slightly Inward. 



176 



