HIESUTIS. Bij B. Haensch. 119 



not much longer than the femora and the cJ(J have 2 hair-tufts. The species of the genus Tithorea have short 

 broad -wings with black ground-colour. They are not at all like the other Ithomiids and recall the Danais- 

 species in the shape of the wings. They inhabit the north-west of South America to Panama. 



T. humboldti Lair. (= flavomaculata Stgr.) (32 a). A stately, velvety black butterfly with yellow humbolcUi. 

 macular band across both wings and yellow subapical spots on the forewing. On the under surface the fore- 

 wing has also yellowish stripes at the base and behind them a double spot. The hindwing has beneath at the 

 base a yellowish streak and a further oblique band, as well as a brown spot outside the cell. In addition 

 both wings bear a row of white submarginal spots. From the Cauca Valley in Colombia, according to Latbeille 

 also from the Amazons (?). — As albomaculata Hsch. I have designated a form in which the spots on the forewing [0/^°'*'"™" 

 are white. It appears to be commoner than the typical humboldti, and occurs on the eastern slopes of Ecuador 

 and Colombia at elevations of ca. 1500 m. 



T. cassandina Srn'ka, from Ecuador, is a smaller species, similar to alhomaculata. The yellow spots cassandina. 

 of the hindwing are very small, on the contrary the brown spot on the under surface at the end of the cell is 

 very large. The submarginal spots on the underside are bluish white. The species recalls Heliconius cassandra Fldr. 



T. bomplandi Guer. (32b) is the commonest species of the genus. On the upperside the forewing has iomplandi. 

 besides the spots of albomaculata also the white streak and double spot of the underside. The hindwing is marked 

 as in pavonii (figured on the upper surface), only proportionately larger. Comes mostly from Colombia, but 

 also from Bolivia. — descandollesi Stgr., from the Cauca Valley in Colombia, is a form in which all the nor- doUesi 

 mally white spots of the upper surface are yellow. — latreillei Stgr., likewise from the Cauca Valley, has the lafreillei. 

 yellow spots hke descandollesi, but the band of the hindwing is much broader and behind it follows a further 

 yellow macular band almost as in humboldti. On the under surface the brown spot at the discocellular is much 

 smaller, but continued by 2 smaller spots. 



T, regalis Stich. (= dagua Stgr. i. I.) is very similar above to bomplandi, except that the white regolis. 

 spots at the discocellular of the forewing are perceptibly larger. Beneath on the contrary the ground-colour 

 is principally brownish except on the disc of the forewing and the bordering of the white spots and dots. The 

 species comes from the Eio Dagua in Colombia. 



T. pavonii Btlr. (32 b) is the smallest species of the genus and above similar to bomplandi. Streak and pavonii. 

 double spot at the base of the forewing are yellowish. On the under surface some of the spots at the end of 

 the cell of the forewing are also yellowish and on the hindwing there are 2 complete rows of brown spots between 

 the rows of white dots and the oblique band. Butler describes the species from Panama and compares it with 

 the similar Heliconius peruvianus. But it occurs also in western Ecuador and Peru, as well as in Bolivia. In * 

 Ecuador it flies with the confusingly similar Helico7iius atthis in the same localities. 



T. tamasea Hew., from Colombia, has some similarity to descandollesi, but the yellow spots at the base tamasea. 

 and at the end of the cell of the forewing- are absent; moreover the yellow band of the hindwing is narrower 

 and abbreviated. On the under surface both wings have whitish marginal dots. The forewing has a brownish 

 band near the median and 2 brownish spots near the apex. The hindwing has further 2 brownish bands at 

 the base and in the disc before the yellow spots. In an aberration from the same locality the band of the 

 hindwing is reduced to 2 spots, of which the distal one is partly brownish. On the under surface almost the 

 whole disc of both wings is brownish. — A further form, which I call lugubris form, nov., has the upper surface lugubris. 

 of the wings unicolorous black-brown, only the minute white double dots in the distal margin of both wings 

 remain. On the under surface there are also a brown subapical band on the forewing and submarginal band on 

 the hindwing. The form comes likewise from Colombia. 



9. Genus: Hirsutis gen. nov. . 



The distinctive characters of this genus have already been given under Tithorea. It may further be 

 divided into 2 large groups, namely: a) Wings short and broad, patagia black-brown, b) Wings elongate, 

 patagia red-brown. The species of the first group recall Danais and Tithorea by their wing-contour; those of 

 the 2. group have pronounced „L2/corea-habitus". The species are distributed over the whole Neotropical region 

 from Mexico to South Brazil. They are mostly found singly at the edges of the woods or at flowering shrubs 

 with the corresponding species of Melinaea, Mechanitis and Ceratinia. 



a) Patagia black-brown. 



H. pinthias Godm. & Scdv. (32 b). A stately butterfly with broad wings. Forewing black-brown with pinlhias. 

 12 irregular yellow spots. Hindwing red-brown with dark costal and distal margins. On the under surface 

 the hindwing has in addition a dark oblique band from the apex to the inner margin, at the beginning of this 



