7 26 



Additions and Corrections. 



ihestias. Th. thestias. A very small form; it is immediately recognizable by the under surface. Here, below 



the costa of the forewing, we see a brimstone-coloured, oblong basal spot filling up the part of the wings between 

 the costa-base and the subcostal, and extending yet narrowly into the cell of the forewing. The rest of the 

 under surface is lilac-grey, with a broad brown median shade. Above typical thestias have entirely blue 

 discus, hindwings. ■ — Those of the form discus Bat. have only the basal part of the hindwing blue. The species is easily 

 distinguishable by a concave indenture at the anal part of the hindwing, effected by the receding anal fold. The 

 species, varying according to the finding-places, not with respect to the countries, is apparently distributed 

 over the greatest part of Central and South America; it was found from Costa Rica and Guiana to Rio Grande 

 decorata. do Sul and Bolivia. — decorata G. <& S. is the northernmost form ; it shows blue patches embedded in the 

 distal part of the forewings beneath. Apparently rather rare. 



eiirygouhia. Th. eurygotlina Bat. Recognizable by the shape being more that of an Euselasia than that of a 



Thecpe; the forewings are triangular with almost straight margins, and the hindwings have a rather long anal 

 part. In the typical form from Santarem on the Amazon, the part of the forewing above the middle of the 

 inner margin, the hindwing, however, entirely violettish-blue except broad dark marginal triangles of the $. 



Columbiana. Under surface brown, marked with rusty-brown transverse bands. — Colombian specimens, columbiana Sfgr. 

 (110 A e), are figured by their author with a light-brown, light-striped under surface and entirely blue hind- 

 wings, from the Rio San Juan; a specimen captured by A. H. Fassl on the Tolima at 1700 m has the whole 

 distal half of the hindwings blackish, only the basal part being blue; the under surface shows very light grey 

 bands. — From the Rio Dagua (Colombia) there is a most peculiar specimen before me, likewise taken by A. H. 

 Fassl, which is similarly marked like the Tolima-specimen, but of a snow-white colour in the centre of the 

 wings on both surfaces. It is not impossible that it is a different species, as also the marking beneath in the 

 centre of the wings deviates somewhat from eurygonina. But as I have only 1 specimen before me, I include 

 sisemina. it here and call it sisemina form. nov. (110 A e). — This species connects the genus with the preceding. 



Additions and Corrections. 



fulvescens. P- 623. — Libythea fulvescens Lathy (Proc. Zool. Soc. Lond. 190-4 p. 451) scarcely differs from the 



form terena; it has only above more black and the yellow spots are more homochromous. From Dominica. 



P. 624, line 12 from above, insert: typical eucritus Hew. (121 a) originate from the Central Amazon. 



,, After eustachius insert: J. d- Hhst. (121 e). 



for 121 f read: 121 e. 

 ,, After rhodon insert: (121 f). 

 for (110 A f) read: (122 a, b). 

 after uria insert; (121 h). 

 below, after form, nov., for Hindwing read: Forewing. 

 ,, after E. aiithe insert: 



ocalea. E. ocalea Drc. greatly approximates aufhe, but the yellowish-red on the forewing is more extensive 



and covers the whole hindwing except narrow margins. Beneath the whole distal half of the hindwing and a 

 band distal from the (interrupted) postmedian line are white. La Paz (Bolivia). Above almost like eucerus, 

 but beneath quite different. 



P. 632, line 12 from below, add: 

 tysoni. E. tysoni Weeks from Suapure (Venezuela) has an expanse of 241,4 mm. Hindwing very dentate; 



upper surface mouse-coloured with an obliterated yellow spot at the end of the 'submedian of the hindwing. 

 Under surface yellowish-brown with a dark central transverse line, the anal region of the forewing whitish. 

 At the border of the wings a white filiform line exhibiting in the hindwing white, black-bordered longitudinal 

 spots; the median line of the hindwing bent round towards the proximal margin. 

 hoivlamli. E. howlandi Weeks is 27 mm, mouse-coloured, the forewings in the proximal third lighter; the 



hindwings also somewhat lighter in the middle of the upper surface. Under surface quite light-grey, with brown 

 lines from the costa through the centre and also nearer to the apex of the forewing. Border of the hindwing 

 dentate; antennae white. From Suapure (Venezuela). 



P. 638, line 19 from above, to nttahis add: (124 e). 

 P. 639, ,, 2 ,, ,, for lajnUus read: lapilla. 



,, 27 ,, below, for magnesia read: magnessa. 

 P. 641, ,, 20 ,, ,, for menoetes from Bolivia and Peru Stichel establishes another name: 



faetula. 



P. 642, line 12 from above. M. mathania iSchs. which was wrongly placed to the epidius-gvoup by 

 Stichel, belongs to the orfice-group, according to the $ having in the meantime become known, and approxi- 

 mates cymotaxis Stichel. 



