Genus ERGOLIS. 



ErfioU^ Boiaduval, Spec. Gen, i. t. i, f. 4 (18SG); West;*. Greu. Diurn. Lep. p. 400 jl851»; Moore, Lep. Ceyl. 



i, p, 48 (1881). 

 Ariadne, Horsf. Cat. Lep, fiXCL t. fl, f. 2 (182IJ). 



Anterior wings large, subtri angular, the costal margin much arched, apex subacute, the apical angle 

 oblique ; outer margin more or less convex, waved aud simiated ; the inner margin nearly straight, more 

 or less overlapping and convex at base. Costal nervure greatly swollen at the base ; subcostal nervnles 

 arranged almost as in Eim/ttla, but the middle disco-cellular nervnlr- considerably longer than the upper; 

 the lower disco-cellular nervule curved outwardly above and inwardly below. Posterior wings very broad ; 

 costal margin oblique and very slightly convex and slightly gibbons near base : outer margin rounded, convex, 

 and strongly waved ; m utation ^ tn rally as in preceding genus. Body of moderate size; palpi porrect, 

 slightly curved, extending considerably beyond the head, and not elevated above the middle of the eyes; 

 antenna slender, with an apical sliglit and gradually formed club. 



ErgoU$ is not only allied to Eunjtehu in possessing the common and aberrant character 

 of dilatation of costal nervure, but like that genua it is also found in both the Ethiopian and 

 Oriental regions. Unlike EuryteUi, however, it is as well or better represented in the last than 

 in the first-named region. 



We are indebted to the late Dr. Horsiield for a drawing of the larva of E, ariadne, as found 

 in Java,* which somewhat agrees with the general structure of the African species of Eurtjtda, 

 described by Mr, Gooch {ante, p, 136), in possessing bifid spines to the head. On this subject 

 Mr. Wallace has remarked that, as the larval structure "agrees with the Junonia type," while 

 the ueuration is so distinct "it seems probable therefore that, as we know sometimes 

 happens, the larva alone has become modified, so as to resemble a group with which it has 

 no direct affinity," f 



Mr, Wallace describee the butterflies of this genus as frequenting open situations "fluttering 

 among herbage, and having much the habit of the more active Salijridaz"l 



1. Ergolis ariadne. (Tab. XL* fig. 6?.) 



Papilio Ariadne, Linneeus, Svst. Nat, i. 2, p. 778, n. 170 (1767) ; Job, Amoen. Acad. vi. p. 407, d. 71 (1701) ; 



Fftbr. Syst, Eut. p. 507, n. 267 |1775), 

 Biblu Aruulne, Godt. Enc. Meth. ix. p. B27, a. (J (1819). 

 Papilio Coryta, Cram. Pap. Ex. i. t, HGE F (1779). 

 Ariadne CoryUi I Horsf. Cat, Lep, E.I, C t. 0, f. 2 (1829 U 

 Ergotis Conjta, Boisd- Sp. Gen. i. L 4, f, 4 [183«i. 



Eryolis Ariadne, Horaf. & Moore (excl. $£en»n?> Cram,), Cat, Lep, Mus, E.I.C. i. p, 144, a. 293 (1657). 

 Enjulis Conjta, Horsf, & Moore, Cat. Lep. Mns, E. I. C i. p. 144, n. 294 (1857)) 



Krtjalh ,tri(td)u\ Butl. Cat. Fain-. Lep. p, 70, n. 2 (18li9|; Trails, Lkiii. Soc. ser, 2, Zool. vol, i. p. 645, n. 1 

 U877); Wall. Trans. Ent. Soc. 1860, p. 832. u. 1 J Druce, Froc. Zool. Soo. 1878, p. 842, ft. 1 ; ibid. 

 1874, p. 105, n. 1; Snellen, Tijd. Ent. xix, p. 146, u. 17 (1876); ibid, xxi, p, 9, tt. 29 {1878). 



* Cat. Lep. E. I.C. t. 7, f. G <1B20» ; copied by Btnsduval, Sp. Gnu. i. t. 4, f. 4 (1836). 

 f Trans. Eut. Soc. 18G9, p. 882. | Ibid. 



JCWE 30, 1883, 



2n 



