RIl QPALOCERA MALA YANA . 



129 



local entomologist who can by breeding alone decide.* I am unacquainted with any 

 description or figure of the larval characters of Tanaceia, though it is more than probable, 

 from the close connection of the genera, that they partake of the unique structure of the 

 Enthaliad larvre. 



As several of the species here enumerated are only known to me by figures and 

 descriptions, it is impossible to divide the genus sectionaliy by neural characters. 



1. Tanaecia flora, (Tab. XVIIL, tig. 0 2 ,) 



I'utuunu F/.u-a, Butler, Prod. Zooh Soc, IBIS, p. 235; Aid, Identify Ins. t. 21 (1881). 



Wings above pule fuli^iuons-brovu ; cell of each wing crossed by the usual dark linear markings. 

 Anterior win^s crosaed by two obscure and irregular dark fuscoua macular fasciae, the lirst commencing 

 a little beyond cell, obliquely directed outwardly to about first median nervule, from whence it is directed 

 inwardly and becomes obsolete at ahout tbe third median nervine, the aecoud being straight and 

 submarginal ; between the fascia, at area of the discoidal nervulea, are some very obscure violaceous spots ; 

 outer margin narrowly pale violaceous, narrowest at apex and slightly widening to posterior angle; 

 extreme outer border fuliginous, with the fringe grey. Posterior wings with a very broad pale violaceous 

 margin, widening towards anal angle, with its inner margin dentate, where there are indications of ;i dark 

 macular fascia- Wings beneath dark ochraceous, the markings very closely resembling those of Ettthalia 

 mucntiiri (Tab. XIV., f. 10), but paler and with the outer narrow diseal fascia to anterior wings leas 

 angulated and waved. 



Ex]', vvmgs, ti-£j inillira. 



Hab. — Malay Peninsula; Province Wclleslev (coll. Hutl.) 



This unique species possesses three distinct and interesting features: — firstly, the palpi 

 have a much shorter slender termination than other species of the genus, thus being somewhat 

 intermediate in that respect between Eul India and Tanaecia, though the position of the first 

 subcostal nervule of the posterior wings clearly denotes its relation to the last-named genus ; 

 secondly, it very closely resembles the female of blnlhaUa macnatri, a resemblance which may 

 or may not find its subsequent explanation by the theory of *' mimicry";! and thirdly, it is a 

 species of extreme rarity. 



The female specimen here figured was taken by myself at Province Welle sley in 1868, and 

 is now in the collection of Mr. Butler, who founded the genus, and to whom it was my great 

 pleasure to present it. Since then, although large collections have been formed in the same 

 neighbourhood, and continued during a term of years, not another specimen has yet been 

 discovered, and the male still remains unknown. 



* la these empirical <i nest ions one's memory recalls the opinion of Goethe, that species only exint m the copy-books 

 of the specialists; and the remark of the late Edward Forbes, thai some can see difference and no reeeniLlauce, others 

 refconiUiiuce and no ililTcreuco, whilst some again can see ut ither one uor the other. 



f Since I published some remarks [ante, p. 88) expressive of the opinion that a reference of such regcmblunccH. to 

 tbe theory of " mimicry," without the ntcoss&ry support of observed facte, was more calculated to obscure than advance 

 philosophical Entumolofiy, much ink has been spilled by my friend Mr. MeldoLi and myself— pro ct con — upon ilio subject. 

 No fresh f&ett wore available or could be advanced, and tlio curious are referred to ihe articles ns they appeared (Ann* 

 and Mag. Nat* Hist, ser, 5, vol, x. p. 417, and vol. xi. p. 48j. 



June 30, 1883. 2 x. 



