674 XINIAS; MESENOPSIS. By Dr. A. Seitz. 



Jesse. E. Jesse Btlr. (142 g). Here the subapical band of the forewing is broken up into 5 diffuse spots 



and the disc of the wings of a shining violet-blue tinge, traversed by the thick black veins. Beneath the 

 colouring of the wings between the veins is lighter than above, whitish-blue; northern parts of South Ame- 



(wmaciis. rica; Brazil. — aeniacus Heiv. (128 c) shows the upper surface of the wings particularly below the costa and 

 from the direction of the border dusted with a sooty grey; from Bolivia, but there are alsmost typical jes,s,e. 

 before me also from Bolivia. 

 linearis. E. linearis G. and S. has almost exactly the size and forewings of the following sericina (128 b), 



but tlie hindwing is without the black margin; from Colombia. 



sericina. E. sericina Bai. (128 b) differs entirely from the preceding species by the hyaline places being combined 



here to 3 fenestrae: an oblique band before the apex, a longitudinal stripe from the base of the forewing, 

 and a discal wedge in the hindwing. Thereby a general appearance is produced which is shown by many 

 Heterocera flying in the same district: I \neniwn Mimagyrta pampa (Vol. VI., t. 12 k), Cacostatia sapphira, 

 flaviventris (Vol. VI., t. 22 c), Enagra splendida (Vol. VI., t. 23 h), Agyrta ckena (Vol. VI., t. 23 k), Ag. 

 dux, micilia, auxo (Vol. VI., t. 24 a), to a cercain degree even the large Agyrtidia uranophila (Vol. VI., t. 17 a). 

 In this species (like in the model Enagra {splendida) not only the palpi, but also the vertex and hindhead 

 are red-yellow. 



lHhosina. E. lithosina Bat. (128 b). Forewing more stretched, hindwing smaller and in the anal part pointed; 



colouring similar to that of the preceding species, but the hyaline brightening occupies almost the whole 



disc of the wing. Hindhead reddish-jellow. Sometimes there is some red-yellow beneath in the anal angle 



fenella. of the forewing; Amazon, Pebas. It imitates small Arctiids, Lauron, TithravMes. ■ — fenella Sm. has clearer 



vitreous spots and, above all, a broader subapical band of the forewing, otherwise similar; from Ecuador. 



celina. E. ccHna i?a^(142h). Smaller than the preceding, the hyaline fenestrae not tinged in blue, but 



only faintly darkened by smoky-grey at the mai'gins, the small subapical band white, shaped like in lithosina. 



From the Upper Amazon. This species has no orange-yellow in the forewing and a dark hindhead. — E. 



aeolia. aeoHa Bat. from Guiana and North Brazil has the small band cut trough before the apex by black veins, 



and the black veins in the hyaline disc of the wing are considerably thicker. 

 ■inaria. In addition we mention here (according to Stichel) the entirely red, black-mai'gined E. inaria Wuk, 



described as Lymnas, and which Stichel had formerly himself placed to Xenandra. From the Amazon. — • 



isaheUac. isabellae E. Sh. (128 d) is a form from the Araguaya River with almost quite uniform black margins of 

 the wings. It differs from inaria by the latter having another black ray on the submedian of the fore- 

 wing. Apparently very rare. 



inariella. E. inariella Strd. from Costa Rica resembles Euselasia chrysippe (121f), but above it has 3 small 



light spots before the apex and beneath a black border of the hindwing. 



49. Genus : Xiuias Hew. 



This genus is closely allied to the hyaline E.sthemopsis, but the two last subcostal veins bifurcate 

 sooner before the apex of the hindwing. For the rest the species entirely resemble Esth. lithosina. 

 cynosema. X. cynosema Hew. (142 h). Wings of a faint violet lustre, hyaline; in the black apical part of the 



hi/alodis. forewing a white, oval oblique band, in the blackish inner margin an orange stripe. Bolivia. — In hyalodis 

 Siich. (142 f) from Ecuador the small greapical band of the forewing is widened to a large white oval. It 

 i mates small Ithomiinae. 

 cri.^Mla. X. cristella Sm. from Ecuador is like cynosema, but the orange embedding in the black inner-mar- 



ginal stripe is reduced, similarly as in hyalodis; but the oblique band of the forewing is not widened. The 

 head is yellow (by which it differs from Esthemopsis lithosina). 



50. Genus: Meseiiopsis G. and S. 



This genus belongs yet eirtii'ely to the mimetic genera of the Lymnas-gvo\x^ . In the shape it ap- 

 proximates the Xinias and Esthemopsis to which it is undeniably closely allied, but owing to the selection 

 of other models its outer appearance greatly deviates from the former. On the upper surface the black 

 and yellow colouring of the Josta-species from the large group of the Arctiidae is predominant. The fore- 

 wings are long, the hind\^ings small with a pointed anal part. The cell of the forewing is nearly twice as 

 long as that of the hindwing. The butterflies are mostly rare, i. e. difficult to discover from the great number 

 of the Josia flying with them; according to Fas.sl, there is a remarkable difference between the model 

 and copy in the imitating Erycinidae being more timid and flying off sooner than the Josia serving as their 

 model . 

 Iryaxis. M. bryaxis Hew. (128 a). Wings with an orange-j^ellow disc and broad black margins. Central Ame- 



i:ielanochlo- rica. In the cJ the orange colour is deeper, in the $ lighter. Rare. — melanochlora G. and *S.'(128 a). Here 

 '""• the orange is more in the shape of stripes, running from the base of the wings to the middle of the border. 

 Central America to Bolivia. Rare; the model in Colombia is Josia fulva (Fas.sl), in Costa Rica Josia ligafa. 



