TOLYPE. By Dr. M. Draudt. 
581 
T. tenebrosa Wkr. (79 f) is somewhat similar to alegra, darker blackish-brown, particularly the body tenebrosa. 
not contrastingly lighter; forewing not with lighter veins, the median area hued with a deep chestnut-brown, 
the somewhat lighter cross-vein streak is edged by 2 darker parallel lines; apex as in alegra also strewn somewhat 
with white. Brazil. 
T. nebulosa Schs. (81 d). Head and anterior half of collar brown, the latter behind and the patagia nebxlosa. 
white, strewn with brown; rest of body brown, ventrum grey. Wings greyish-white, distal half of costal margin 
dark grey, in the upper cell-angle a black dot; 2 antemedian and 3 postmedian undulating grey lines, behind 
them a grey marginal shadow. Hindwing at the anal margin and distal margin from 4 to the anal angle 
powdered with dark grey. Expanse of wings: 33 mm. French Guiana. 
T. nigra Dogn. (79 f). This and the following species are very closely allied, both being blackish- n'ujra. 
brown, with deeper black veins, and a black cross-vein streak; in nigra there is only a subterminal row of black 
internerval streaks, in front of which, towards the base, the ground is somewhat lighter grey except between 
5 and 6. Peru. Colombia. 
T. interstriata Dogn. is extremely similar to nigra , somewhat smaller, with somewhat broader wings; interslriata. 
it chiefly differs in the presence of a second postmedian row of black internerval streaks, the whole marginal 
area being lighter grey. Guiana. 
T. iridescens Wkr. (79 g) is a larger species, with a white thorax and forewing, the latter being iridescens. 
scantily scaled with a greyish-brown base and median band, before and behind the latter with a grey transverse 
line, the distal one of which projects taperingly on 4, more obtusely between 7 and 8, behind it a subterminal 
band being broadly confluent with the median area at the costal margin, the area behind it as far as the narrow 
grey distal margin is white; at the distal margin black internerval streaks. Hindwing powdered with grey, with 
two darker, broadly washed out nebulous bands. Abdomen with blackish-brown ringlets. Costa Rica to Colombia 
and Brazil. 
T. celeste Dyar (79 g) entirely resembles Titya infernalis, but the species is smaller, neater, with celeste. 
purer white forewings, the postmedian and subterminal transverse markings are less sinuate, the hindwings 
almost pure white. Only known from Mexico (Misantla, Tabasca. Colima). 
T. caieta Drc. ( — nigropatagiata Dogn.) is larger than celeste, of a purer white, with narrower transverse caicfa - 
markings, the discal dot thicker, at the anal angle of the hindwing a dark spot. The <$ is similar to that of 
tolteca, but easily separable by the thick black discal spot and the much more sinuate transverse markings and 
much whiter hindwings. Panama, Guiana, Colombia. 
T. aroana Schs. has an exteiior quite similar to the primitiva-grouip of the genus Titya. Body aroana. 
and wings dark grey, patagia yellowish pink. On the forewing the veins are striped ochreous, the cross-vein 
is black; 2 antemedian and postmedian whitish undulating lines each, being almost contiguous on vein 2; 
the broad subterminal band is likewise whitish; distal margin and fringes light grey with dark spots. Hindwing 
dark smoky grey. Expanse of wings: 34 mm. Only the £ is known. From Aroa (Venezuela). 
T. Columbiana Schs. (79 g) is larger, with broader and rounder wings, the inner margin almost as columbiana. 
long as the costal margin, patagia not much lighter, only somewhat intermixed with Isabel-colour; the 
broad median area is somewhat darkened, the light transverse lines feebly yellowish pink, the light grey 
subterminal area towards the margin dentate. Expanse of wings: 37, $ 44 mm. Colombia. 
T. peruviana Dogn. is above extremely similar to columbiana ; it appears to be somewhat larger peruviana. 
on an average, lighter, greyish-white, without the slight pink tint. Beneath very different from the more 
monotonous grey under surface of columbiana ; forewing in the basal half blackish, at the costal margin as far 
as % widened, and towards the greyish-white marginal area defined by a black, submedianly incurved line, 
at the costal margin with a dark subterminal spot. South-East Peru. 
T. tarudina sp. n. (79 g) differs from the very similar columbiana in its more slender structure, tarudina. 
narrower forewings with a more oblique, longer distal margin and therefore much shorter inner margin. Head, 
collar, and patagia are more contrastingly whitish: forewing lighter grey, with softer and less contrasting 
markings, the median band obliquer, outside without the two projections, between 3 and 5 only very feebly 
convex, the parallel lines accompanying the median area outside and inside are almost quite absent. Hindwing 
relatively smaller, abdomen longer. Colombia; type in the Berlin Museum (Coll. Staudixger). 
T. obscura Dogn. is compared with velleda in the structure. Body and forewing blackish-brown, obscura. 
forewing with a black cross-vein and traces of 4 whitish transverse lines, an antemedian one close in front of 
the cross-vein, the second close behind it, uniting with the first submedianly; the third is postmedian in the 
third quarter with the usual two convexities between 8 and 6, and below 4; the subterminal line is sinuate as 
