ZEONIA. 



431 



365., Ent. Syst. iii. pt. 1. p. 321. n. 218.; Ckrck, 

 Icon. t. 22. f. 3, 4. ; Drury, III. i. pi. 2. f. 2. 2 a. ; 

 Cramer, Pap. pi. 380. f. A. ; Godart, Enc. M. ix. p. 

 566. n. 11. (Erycina L.); Hiibner, Verz. bek. Schm. 



p. 22. II. 163. ; Zutrage exot. Schm. f. 527, 528. ; 

 Morisse, Ann. Soc. Ent. France, vi. p. 4-25. (Zeonia 

 L.) ; Lucas, Hist. Nat. Lep. exot. |)I. 43. f. 2. 

 Guiana, Brazil. 



jry Jiairy 



Genus XII. ZEONIA. 



Zeonia Swainson. 

 Zeonia p. Morisse. 

 Etiielida Boisduval MS. 

 Syrmatia p. Hiibner. 

 CHOEiNiEA G. R. Gray. 

 Erycina p. Saunders. 



Body robust : wings with two very broad transparent fascia; ; hind wings extending into lon<^ tails. 

 Head wide, with a short truncate tuft of hair in front below the antennae. ° 



Eyes occupying the anterior angles of the head, naked. 

 Labial Palpi very short, the tip not extending so far as the front of the tuft of hairs on the face, vei 



beneath ; terminal joint very short and triangular. 

 Antennce considerably longer than half the length of the fore wings, slender; annulations scarcely distinct and not 

 ringed with white ; terminated by a long gradually formed club of moderate thickness, obtuse, and recurved at 

 the tip. 

 Thorax robust, clothed with short hairs at the sides and behind. 



Fore Wings large, elongate-triangular, transparent ; with the base, costa, a central fascia, and the apical margin 

 clothed with black scales. Costal margin nearly straight ; apical angle subacute. Apical inaro-jn more than 

 three fourths of the length of the costal one, straight, or but slightly convex. Inner margin s°traio-ht, short 

 Postcostal vein with its first branch arising beyond the anterior extremity of the discoidal cell ; Ihe second 

 branch rather beyond the middle of the wing, followed at a short distance by the third branch. Upper disco- 

 cellularvein obsolete : middle one arising before the first branch of the postcostal vein, short, rather oblique • 

 lower disco-cellular vein four times as long as the middle one, rather curved, uniting with the third branch of 

 the median vein at a httle distance beyond its origin, closing the discoidal cell before the middle of the wiii'i- in 

 the black fascia. ° 



Bind Wings with a broad central and smaller submarginal transparent fascia;, produced into a long tail in the middle 

 of the posterior margin, the anal angle of the wing being elongated to about half the length of the tail. Costal 

 margin nearly straight. Postcostal vein branching at a considerable distance beyond tlie middle of the wino-. 

 Upper and lower disco-cellular veins oblique, the former arising at a very short distance beyond the branch of the 

 postcostal vein, and the latter uniting with the median vein close to the origin of the third branch, closino- the 

 discoidal cell far beyond the middle of the wing. The middle of the tail is traversed by the middle branch of the 

 medianvem, the other two branches of which are quite close to the middle one; one of them exteiidin.^ to 

 either side of the base of the tail. The subinedian vein extends to the extremity of the lobe at the end oAhe 

 anal margin. 



Fore Legs of the male very short and densely hairy. 



Four Hind Legs long, slender, scaly. Femur shortly hairy beneath. Tibial spurs distinct. Tarsi furnished beneath 

 with short spines. 



In the partially transparent wings, and elongated tails of the hind wings, the species of this genus bear a strong analogical resemblance 

 to those of Leptocircus ; the variations in the structure of the antenna;, fore legs, and veins of the wings are sufficient, however, to show 

 that the two groups belong to distinct families of fiutterflies. From the tailed Erycina;, as well as from the species of that o-enus which 



possess very short palpi, these insects are separated by tlieir semitransparent wings, and by tlie arrangement of the brandies of tlie 

 postcostal vein in the fore wings ; all of which arise beyond the anterior extremity of the discoidal cell. In Z. Xantippe, the first brancli 

 arises very ne.ar the extremity of the costal vein, with which it becomes confluent for a short distance, and then brandies off into its 

 ordinary termination. In Z. Octavius it however arises at but a very short distance beyond the cell, and, although for a portion of its 

 distance it runs quite clo.se to the costal vein, it does not absolutely unite with it as is the case with the preceding species. 



October 1. 1851. 



species. 

 5 U 



