EPISTEME. 65 



arisen respecting the true Papilio hyale of Linnaeus. While 

 my son, Dr. W. Egmont Kirby, was comparing some of the 

 figures in Jardine's " Naturalist's Library " with the British 

 Museum collection, he noticed that the original figure of E. 

 maculatrix had nothing to do with the species bearing that 

 name in the collection, but agreed with a specimen labelled 

 E. irenea (Boisduval). On investigating the matter, it was 

 discovered that after figuring and describing E. maculatrix 

 in 1841, Westwood himself figured and described a totally 

 different species in 1848, which has gone by the same name 

 ever since ; the true E. maculatrix having again been mistaken 

 for E. irenea (Boisduval), which I have noticed above, and 

 which proved, on comparison with Boisduval's description, to 

 be the same as E. communis, Butler, the description of which 

 was published about the same time as Boisduval's description 

 of E. irenea. 



The true E. maculatrix appears to be a rare species, of which 

 the British Museum possesses only one specimen. Westwood's 

 second E. maculatrix is herewith named 



EPISTEME WESTWOOD!. 



Eusemia maculatrix^ Westwood, Cab. Orient. Ent. p. 67, pi. 33, 

 fig. i (1848) et auct. seq.; nee E. maculatrix , Westwood, 

 (1841). 



This species is common in collections from India. I repro- 

 duce Westwood's original description in full : 



" Eusemia alis anticis nigris basi caeruleo maculatis, puncto 

 stramineo approximate maculis 4 discoidalibus, 2 majoribus, 2 

 minoribus, stramineis et pone has maculis 7 albis 6ta minuta \ 

 posticis fulvo-rufis, basi costa macula angulata costali fimbria 

 irregulari (in qua i vel 2 maculae albae) maculaque magna dis- 

 coidali cum margine anali connexa, lineisque duabus ad fim- 

 '3 . * 



