948 TRIOEDUSA; PRENE8. By Dr. M. Draudt. 



riridirniis. S. vifidicans FIdr. (183 h) is a large, beautiful species: above deep rufous, very broadly liordered 



with black, with 3 small white subapical spots and a fourth below them ; costal margin olive-green like the hairing 

 of the body; a broad black oblique stripe terminates into the broad black apex; hindwing with a broad costal- 

 marginal spot ; fringes of hindwings analwards white, otherwise ochreous-yellow. Beneath the forewing is 

 apically and at the costal margin as well as the whole hindwings bright olive-green, at the distal margin lighter; 

 hindwing with a straight, light, narrow transverse band and a broad black inner-marginal wedge. Colombia. 

 kirsrhi. S. kirschi Weym. (183 g) is only doubtfully regarded as a different species. Above the forewing is 



without the postdiscal white spot behind the lower cell-end, the base of the hindwing is broader red-brown 

 and connected with the postdiscal macular band which does not extend parallel to the distal margin, but ter- 

 minates di.stally concavely pointed into the apex. Beneath the anal angle of the forewing is scarcely dusted 

 Ijlack, and the hindwing exhibits 2 parallel, distally slightly concave, light green bands, the distal one of which 

 terminates into the costal angle. Colombia. 

 imcttlascia. S. fractifascia i^W/-. (183 g) resembles virldicans above, the black border being narrower; on the 



hindwing before the distal margin extends a straight or almost proximally convex, fox-coloured band which 

 is flawed in an acute angle on the upper radial vein. Beneath as viridicans, but the distal white band of the 

 hindwing forms below the costal angle a pointed tooth distally, touching the margin, the proximal band ter- 

 minates distally in the lower cell-angle. Colombia, Venezuela. 



111. Genus: Trioedusa Mab. 



Antennal club very long, fusiform; palpi appressed, last joint conical, erect. Middle radial of the fore- 

 wing as in Psoralis and Calpodes; the median strongly inflated, especially beneath; the submedian is bent and 

 forms an angle at the place where it touches the lower end of the stigma. Posterior tibiae bare, only with ter- 

 minal spurs, tScent-scale stripe tripartite, the uppermost part velvety black near the cell-end on the median, 

 the middle one bordered with grey at the lower median vein, and the lower romidish. hairy on the submedian 

 angle. 

 milriiis. T. milvius Mab. (183 h). Black, costal margin striped ferruginous yellow, with a narrow, oblique, 



reddish-yellow band extending from the 3 small subapical spots to the base of the proximal margin and widening 

 before the stigma; hindwing with a broad discal spot, fringes likewise ferruginous-yellow. Beneath the forewing 

 is ferruginous-yellow, the band lighter yellowish, hindwing the same, the discal spot bordered by small reddish 

 spots. Brazil, Paraguay. 

 clrrrri/ciiK. T. devcrgcns sp. nov. (183 h) is above and beneath hardly discernible from milvius, somewhat 



smaller, the wings less stretched and above all different by anatomical differences which will probably necessitate 

 the establishment of a new genus. The median is not inflated nor is the submedian angularly flawed. The 

 scent-organ consists of an angular part on the median in the angle where the lower branch rises, below it a 

 roundish scent-spot and above the submedian a third one. The reddish-j^ellow band of the hindwing is above 

 somewhat broader and beneath the black colour on the forewing is more intense and more extensive. Otherwise 

 coloiu'ed and marked the same. According to 1 q from iluzo (Colombia), taken hy Fassl. 



112. Genus : JPreiies Scddr. 



Antennae mostly rather short, like the last palpal joint, Forewing long, the cell of " 3 of the length 

 of the costal margin; middle radial as in the preceding; hindwing at the anal angle feebly lobate. The 

 oblique, narrow scent-scale stripe which is interrupted, is in some species absent altogether. Posterior tibiae 

 with double spurs. 

 iicrii. P. nero F. (= nyctelius Lutr.. fusinn Heir.) (183 h) is a most extraordinarily variable species, espe- 



cially in the size and development of the white band on the hindwing beneath, .\bove blackish-brown with a 

 white, semi— transparent cellular spot, 3 or 4 behind it, the uppermost very small, the lowest more yellowish 

 than the others, and 3 subapical dots. Beneath the same, but on the hindwing mostly with a white band. Head 

 cornipUi. and thorax mostly greenish. — In f corrupta //.-(SV/;«//. (183 h) the spots are small, the hinchving shows instead 

 of the white band above an indistinct reddish one; beneath the latter is broad, somewhat reddish. Cuba. — 

 siilrirold. sylvicola H.-Schdff. (183 i) has the hindwing beneath in the larger costal half and the apex of the forewing 

 suffused Avith steel-grey or lilac-grey, and instead of the white band of the hindwing only small, indistinct light 

 fulidia. punctiform spots. From Cuba and Para. — In fufidia Heir. (183 i) the band is narrow, divided into spots. Bet- 

 ween all these forms there exist, however, numerous transitions. Often the cellular spot of the forewing is 

 roiifoniiis. prolonged. From Mexico to Brazil and the West Indies. — f. conformis Plolz (183 i) has beside the broad white 

 band of the hindwing also a cellular spot beneath. 

 evadneft. P. evadnes Cr. (= chlorus Plotz) (183 i) is larger than nero. Forewing towards the base and hind- 



wing strewn with dark yellow, otherwise above very similar. Beneath the apical part of the forewing and the 



