800 THECLA. By Dr. M. Draudt. 



nitetis. Th. nitetis Godm. d- Salv. (158 g) we append here yet, although it belongs farther in front, owing 



to its habitus and scheme of markings. Above brown, in the 9 towards the base and in the disc of the hindwing 

 dull blue. Beneath peculiarly greyish-green; the postdiscal on the forewing little distinct, but carried out as 

 far as the proximal margin, proxiraally displaced below the lower median vein and on the submedian fold 

 proximally angularly broken; on the hindwings more strongly broken with a high W at the proximal angle, 

 inside tinned in red-yellow; at the anal angle 3 or 4 red-yellow spots, the one between the tails black-])uiiilled. 

 Mexico, Colombia, Biazil. 



104. Vesulus-Group. 



vt'fuiliif:. Th. vesulus Cr. (158 g) is above blackish-brown with lighter fringes being on the hindwing towards 



the anal angle white. Beneath of a silky lustre yellowish brownish-grey with almost the same marking as in 

 the cecrops-grouj) (p. 795); the characteristic difference is noticed in the marginal line of the hindwing being 

 black, proximally white and at the ends of the veins regularly sending forth black small triangles inside, so 

 that the white bordering grows undulate and the red spots assume an oval shape being rounded towards the 

 margin. In the present species the postdiscal begins at the costal margin with an isolated, distally displaced 

 spot; the red spots of the tail are double, black, distally jnipilled in brown; the submarginal space above them 

 almost unmarked. Guiana to the Amazon. 



niallfi. Th. malta Schs. ( 158 g) is a little larger, above the same, with darker, reddish fringes; beneath browner, 



not lustrous, the discal streaks more distinct, distally lighter tinged; the postdiscal of the hindwing proximally 

 more broadly bordered by red, at the costal margin rising in a line, the uppermost spot not distally displaced; 

 the submarginal consisting of distinct, darker brown crescents: the red spots of the tail double, but the upper 

 one only half developed, only the one between the median veins black-pupilled. Colombia, Bolivia. Peru. 



nnihtira. Th. aiithora Heir. ( 15S g). Above likewise brownish-black with a reddish spot in the anal lobe, beneath 



darker brownish-grey than the preceding, marked the same as ves-ulus. but the costal-marginal spot of the 

 discal of the hindwing scarcely distally displaced; the submarginal of the hindwing less distinct than in malta 

 the red spots of the tail double, both black-pupilled. Guiana to the Amazon. 



pciuuifiis. Th. pennatus Drc. is allied to the preceding. On the upper surface the proximal margin of the forewing 



is quite narrow, also the disc of the hindwing dull-lustrous indigo-blue. Beneath the ground-colour is duller, 

 the postdiscal bands narrower, jjlaced more inward, and on the hindwings proximally not bordered by red; 

 there is only one red spot of the tail between the median veins and the triangular, otherwise red filling of the 

 middle angle of the W is replaced here by black colour. The $ is above quite dull brown. Amazon. 



cerata. Th. cerata Hew. (158 g) is easily distinguishable from the others by the dull-lustrous indigo-blue 



colour of the upper surface, almost without any black margin at all. Beneath the most similar to vesulus, still 

 lighter and also lustrous; the svibmarginal space is not blank as it is there, but feebly marked, close in front 

 of the margin the .submarginal crescents are yet filled up by darker small spots. From Guatemala to the Amazon ; 

 pahiiiihfs. in the north rarer than in the south. — palumbes Drc. is apparently based only on aberrative specimens which 

 are beneath without any postdiscal bands at all. From Cayenne. 



pi^is. Th. pisis Godm. & Salv. (158 d) differs from cerata by much darker, purple-black colour above, and 



more ochreous-yellow colour beneath. Guatemala, Nicaragua, Panama. 



pi.'iidiila. Th. pisidula Drc. (158 h) is above dark indigo-blue with indistinctly defined, narrow, black margins. 



Beneath darker than pisis and of a more olive tinge; on the hindwings there is only between the median veins 

 a dull red spot which is very much smaller; the submarginal line is very distinctly marked on both wings. Brazil 

 (Rio Grande, Sa. Catharina). 



Th. tanais Godm. rf' Salv. (158 h) exactly resembles pisidula, but beneath there is instead of the red 

 spot of the tail a second, bluish-grey, oval spot, ringed somewhat lighter blue, and the fine, black, marginal 

 small triangles are more prominent. Panama, Colombia (Rio Dagua). 



Th. instita Drc is above plainly dark-brown, beneath marked exactly like pisidula, only somewhat 

 darker. Brazil. 



piippiiis. Th. puppius Godm. (L- Salv. is above likewise deep blackish-brown, the wings shorter, the apex more 



pointed. Beneath marked like pisis and cerata, but the ground-colour is dirty brown, without a yellow tinge. 

 British Guiana. 



metcayer. Th. melcager Drc. is perhaps only a southern local form of pisis; above just as purple-black, but beneath 



dark greenish -grey, the red spots darker and smaller, their black pupils larger and deeper black. Surinam. 



cissusa. Th. cissusa Heu7. (158 h) is smaller, above blackish-brown, at the costal and proximal margin of the 



hindwing blue with a blue-white marginal line and small blackish spots before it. Beneath like ves-ulus. Guiana, 

 Amazon, Bolivia. 



tannin. 



hi.stito. 



