THEC'LA. By Dr. M. Draudt. 757 



Th. togarna Heir, (loob, c) is very similar, mostly somewhat smaller; the very variable scent-spot loi/dnni. 

 is more triaiigulai , on the veins, interrui)ting it by their light colour, it is distaliy j)roduced taperingly. particularly 

 on the lower median vein. Beneath, on the hindwings, there are only 4 black stripes not parallel to the distal 

 margin, the orange border not defined by black, the two next stripes do not approximate each other more than 

 the others; the anal angle is mostly much lighter in typical specimens. — lincoides form. noi>. (150 c). I deno- Ihicoides. 

 minate a larger, robust form resembling linus still more by its broader black beneath, and also above the discal 

 spot it is larger and is almost or entirely confluent with the marginal band. This latter form flics more in Colom- 

 bia and Ecuador, the type being \^•idely distributed from Mexico to Bolivia. 



Th. aethesa Hew. (loOc) is an extremely rare species from Bahia resembling linus almost entirely aethesa. 

 in the marking beneath, but the ground of the wings above and beneath is reddish-brown instead of white. 



Th. leucogyna Fldr. (150 b) resembles in the 2 above the linus- and fogarna-^^'^, but it has an orange- leiicom/mi. 

 yellow anal spot of the hindwings; the (^ is above dark violettish-blue. Under surface creamy- white with fine 

 black lines, an orange anal-angle spot of the hindwings and in the (^ with a large black scent-spot below the 

 cell of the forewing. Colombia. 



Th. phaea 0. d- S. (= sito Btlr. d- Die. nee Bsd.) (150 b) is most similar to the preceding, the phaca. 

 (^ more bluish-grey, paler, the costal margin of the hindwing, and mostly a spot between the blue and the apex 

 of the forewing, are whitish, the $ usually has a broader blackish-brown distal margin and on the hindwing 

 mostly 2 distinct dark lines in front of the border (leucogyna is marked either without these lines at all or only 

 with the beginnings of them at the anal angle). Beneath in the c? tlie black scent-spot has a narrower and brown 

 border, in the form phaenna Godm. d- Salv. cpiite chestnut-red. Central America (Honduras to Panama). plnicnnu. 



Th. sito Bsd. ( 149 h) is above bluish-grey also in the ?, the (^ lustrous violettish-blue, easily discernible silo. 

 from the preceding by the polished scent-spot on the hindwing above near the costal margin, the one on the 

 forewing beneath being bordered by orange-yellow approaching red-brown. Mexico to Nicaragua. 



Th. melibaeus F. (= curysides Hhn.) (150d) resembles the preceding above, but without the large mdibaeus. 

 orange-red anal spot; beneath the ground-colour is yellowish, the lines are finer and towards the costal margin 

 they are traversed by the fine, black veins. Brazil, 



Th. azaria Heic. (149h) presumably belongs to the same group as the following, though it is above azaria. 

 blackish-brown with a white, rounded median band and only little blue towards the base and in the disc of 

 the hindwing. Beneath the black bands are much broader, more than in hattu-s (150 a), entirely flown together 

 at the base of the forewing, Patria unknown. 



Th. pedusa Heir. (149h) is above blackish-l)rown with a small round discal spot, the disc of the pcdusa. 

 hindwing blue, at the anal angle an orange spot. The under surface is blackish brown with narrow silvery- 

 white stripes. The $ is above lighter and more reddish brownish-grey. Amazon. 



28. Umbratus-Group. 



Th. umbrafus Hbn. According to Hubxer's figure, the butterfly has about the shape of laothoe tunhrotus. 

 (149 g), but it is smaller, only about half as large as -perpenna (149e). The wings are of a bright lustrous 

 cyanide-blue above, the forewings with a broad, the hindwings with a narrower black margin; the scent-spot 

 of the J whitish. The under surface is dirty leaden-grey; the forewing \\ith 2 jiarallel, the hindwing with 3 

 analwards convergent transverse stripes; before the apex of the hindwing a rusty-red, oval spot. Is stated 

 to originate from Yucatan. 



Th. parthenia Hew. (150 h) exhibits in its whole shape and scheme of markings also relations to ixirthenia. 

 the lo.rurina-giouY>. Above lustrous blue with an oval scent-spot and a Ijroad black a])ical part of both wings. 

 The under surface is sooty grey, on the forewing with a dark-brown, faded band behind the centre and another 

 one in front of the border. Hindwings speckled in black, in the Ijasal part «ith several dark indefinite spots, 

 a median band being pointedly broken towards the anal angle and in front of the border a series of small 

 brownish spots. From Mexico to Nicaragua, 



Th. catadupa Hew. (153 e) is unknown to me in nature, but seems to approximate the two preceding raladupa. 

 ones. Above lustrous blue with broad black margins, without a scent-sjiot; hindwing with a broad tail and a 

 large anal lobe. Beneath greyish-brown, on the hindwings darker. Forewing with a broad brown band behind 

 the centre and a narrower band in front of the border, both bordered by white on both sides; the hindwing 

 exhibits 3 bands being ec^ually distant from each other. Ecuador. 



Th. chaluma Sch.^., according to the description, seems to me the least unfit to be placed here. Above rhnlnma. 

 the basal -3 of the forewings and the hindwings are dull violettish-blue, distaliy black. Hindwing with a velvety- 



