4 



RHQPALOCERA MALAY AN A. 



This group, as here understood, contains, in addition to all the Old World Danaina, two 

 Tropical American genera. Five genera are here included, which with Amauris, peculiar to 

 the Ethiopian region, and Hamadnjas, not found west of Wallace's line, constitute the Danahm 

 of the extra -American regions as understood (with the exception of ono additional genus,, 

 Radena) by nil writers at the time of publication of Mr. Kirby's Catalogue in 1871, and as used 

 by Mr. Wallace in his work on the * Geographical Distribution of Animals/ Since that time 

 many other genera have been proposed, some founded on Hiibnerian names and others quite 

 novel. These, although not all followed in this work, will be alluded to when placed under 

 older generic names, and applying to Malayan butterflies. 



SYNOPSIS OF GENERA. 



I. AnteniMP* slender, almost filiform, scarcely thickened at the tip. 



A. Wings semidiaphsnous. 



a. Tarsal claws of middle and posterior legs, short and 



curvuil. 



b. Claws accompanied wit-b pul villi. 



e. First subcostal nervule of anterior wings anastomosing 

 with costal nervure. 

 d. Costal margin of hind wings strongly curved, subcostal 



nervules widely separated, the first short. Hestia. 

 II. Antenna) gradually but distinctly clavate. 



tut. Tarsal claws of middle and posterior legs long and 

 curved. 



lb. Claws with pulvilli obsolete or absent. 



dd. Costal margin of hind wings very slightly curved, sub- 

 costal nervules not widely separated and subequal 

 in length. 



t. Hind wings more or less obovate. . . . Ldeopsts. 

 /. Mrtk with no specialised scent-gland. 



B. Wings more oc less opaque. 



ddd. Costal margin of hind wings nearly straight. 



tc* Hind wings broad, subtriangular, . . . IUdena. 

 ct\ First subcostal nervule of anterior wings not anasto- 

 mosing with costal nervure. 

 dddd. Costal margin of hind wings nearly straight or slightly 

 curved. 



jflf. Males with one or more distinctly specialised ecent- 



glands situated on posterior wings. . . Danais. 

 lib. Claws accompanied with pulvilli. 



ffj\ Males with no scent-glands to posterior wings, but 

 sometimes with one or more pseudo-scent glands 

 or brands on anterior wings. . . . Eutlcea. 



Fig. ii,- 



a It 



Antenna of Hextia lyn« 

 ceu$. b. Antctum of Idcopai* 



l-'n.. 7. — n. fTUiTniclirLt,- inr^u-i rif 

 Hettin lynetm. b. Posterior 

 tarsus of Ideopnit tfaoa. 



* Dr. Murray's con trifmt or* have carried hack " antenna' " to when it in useil apparently as a well-known term, in 



the 1 Philosophical Transactions," p. 377. Yet it is not given by Bailey in his vol. ii. (technical), 1731. It ia a Ktriking 

 instance of how little is known of the history of words that no cluo has yet been discovered to the author, date, or explanation 

 of this curious application of a word meaning the *' top-sail yard" of a vonset to the horn of an insect or lobster. It is not 

 even koowu in what language the entomological use first appeared, and wbuiluT it wat> a popular figure or a scientific fancy. 

 M. Littre did cot raise the question wliich the editor of the Philological Society's Dictionary wants to solve. — 1 Athenaeum,* 

 No. 2830, p. 95 [1882). 



