758 THECLA. By Dr. M. Dratidt. 



black marginal line, prosimally tinged whitish with a long broad tail. Beneath dull greyish-brown; forewing 

 with a broad, distally whitish-dusted median shade, a similar one in front of the border and in front of it another 

 one interrupted by the veins. Hindwing with a broad dark-brown median shade, the broadest in the cell, .strewn 

 with some bluish-white scales, and a narrower distal shade being dentate on the veins; in front of the border 

 a broad, brown band being analwards dusted in grey, on the border a black line. Expanse of wings: 31 mm. 

 Sta. Catharina. 



29. Loxurina-Group. 



loxiirhm. Th. loxurina Fldr. (150 g) is an extremely variable species. In the typical form as it flies e. g. near 



Bogota^ but also on the Cuesta of Cillutiiicara in Bolivia at an altitude of 3500 m, it is above deep violettish- 

 blue with a rather broad black apex and distal margin and a small greyish-brown scent-spot in the upper cell- 

 corner; the costal margin and the fringes are red-brown. The $ is duller, more greyish-blue with a much broader 

 apex and distal margin; the tail and anal lobe deep red-brown, stre-wn with whitish scales. The under surface 

 is dark cherry-coloured, strewn -with bluish-white scales, so that particularly on the hindwings towards the 

 anal part a violettish shade is created, with a red-brown line behind the centre, forming an acute angle on the 

 lower median vein on the hindwing; in front of the border on both wings a series of small purple-brown spots. 

 According to the locality, the occiu'rence of red creates a very different appearance: On the Quindiu Pass (3800 m) 

 in the Colombian Central Cordilleras there appears at first a red colour towards the apex of the forewing, at 



quindiensis. the costal angle of the hindwing and at the anal angle (= quindiensis form. nov. 153 e), being extended to an 

 almost entirely red upper siu-face, so that there remains only a black triangular spot in the middle of the costal 



atymnides. margin of the forewing, by which the .specimens resemble almost atymna (160 g); atymnides form. nov. (153 e). 



dllutinca- Beside the typical form there is another form in Bolivia at an altitude of 3000 m: cillutincarae form. nov. (153 e) 

 rae. jj^ -nrhich most strangely the red occurs at the anal angle of the fore- and hindwings. Finally, on the Monte Socorro 

 (West Cordilleras) at an altitude of 3500 m, the hindwings are more or less red, the forewings remain blue: 

 jassU. fassli Drc. (= socorren.sis Dgn. i. 1.) (153 e). Perliaps the two last forms are to be separated as a species of their 

 own . 

 amaiisia. Th. amatista Dogn. (= candor Drc.) (150 h) is very similar, smaller, with a darker, duller violet 



above; the anal part of the hindwing is extended to a short tail, a lobe is entii'ely absent. Beneath the whole 

 basal half of the forewing is greyish-brown. Peru and Colombia. 

 atymna. Th. atymna Hew. (150 g) is likewise similar, but without a scent-spot, the ^J deep violettish-blue, 



the $ is brown-orange. Beneath the forewings exhibit a dark cell-streak, both wings in front of the border 

 another dark band. Tail and anal lobe as in loxuriria. Ecuador, Bolivia. 

 cairea. Th. catrea Hew. (150 g) is presumably allied, as the shape of the hindwings corresponds with ?oa,'«rma, 



but they are broader. Above radiantly blue with a bread black apex, beneath deep red-brown, strewn with 

 white scales forming on the forewings behind the cell an indistinct short transverse line, on the hindwings in 

 the centre a rectangularly broken dentate line, behind it yet a light shade ; costal angle somewhat lighter brownish ; 

 below the costal margin, before the middle, there is yet a black, bluish-white-pupilled spot. Abdomen above 

 blue, beneath orange-brownish. Brazil (Rio Grande do Sul). 



dissentanca. Th. dissetitanea sp. nov. (153 e). Shape of the wmgs as m amatista. Forewing yellowish-brownish, 



towards the base somewhat dusted in a light lilac-blue; hindwings light lilac-blue with a narrow broAvnish distal 

 margin, fringes white; in the basal area the dark under surface gleams through. Beneath the forewings are 

 greyish-brownish in the basal two thirds, on the lower median vein distally standing forth; marginal area white, 

 at the proximal angle more yellowish with a narrow greyish-broA^ii border and a similar line in front of it. Hind- 

 wing in the basal half blackish-grey, strewn with yellow and with white hair, jjarticularly towards the proximal 

 margin; distal area white, on the lower radial extending into the cell like a tooth; distal margin with the tail 

 and a stripe before it being distinct onlj' at the costal angle, are of the same colour as the basal part. Described 

 according to 2 ^^ from Cuzco (Peru). (Coll. Fassl). 



30. Arria- Group. 



arria. Th, arria Hew. (153 f). Above dull greyish-brown, beginning from the median of the forewing greyish- 



blue, also in the disc of the hindwing; along the ujjper cell-edge of the forewing a narrow, long scent-spot. Anal 

 angle of the hindwing somewhat advanced, without a tail. Beneath greyish-brownish, densely dusted in white; 

 forewing at the proximal margin, beginning from the median, in the basal half shining greenish-blue, behind 

 the middle with a yellow-brownish stripe; hindwing in front and behind the middle with just the same dentate 

 Imes and discal stripe. Colombia, Ecuador, Peru. 



liyhJa. Th. hybla Drc. (153 e,f) is larger, above with a more brilliant and more extensive greenish-blue, 



without a scent-spot. On the under surface the dentate lines are purple-red and the surface of the wings is 

 sparsely strewn with red, particularly towards the base; on the forewing, in the cell, there is a greenish-blue 

 stripe, below it is an opalescent olive colour. Described from Ecuador. 



