158 Mr. F. Walker's Characters of undescrihed Dlptera. 



Fam. 15. CONOPIDiE. 



The Conojiidce are probably about fifty in number, and are 

 nearly all contained in the genus Conops, which Rondani has divided 

 into several ; the latter may be considered as sub-genera. Mac- 

 quart has established the following more distinct genus : — 



* Antennas on the sides of the porrect front. Pleurocerina, 

 Macq. 

 * * Antennae at the tip of the porrect front. Conops. 



XV. On the Oriental Species of Butterflies related to the 

 Genus Morpho. By J. O. Westwood, Esq., F.L.S. &c. 



[Read March 3id, 1856.] 



The beautiful insects which form the subject of the present com- 

 munication are the eastern representatives of a group of butterflies 

 of large size, which, with these oriental exceptions, are exclusive 

 natives of the new w-orld, and which in respect to their size may 

 be ranked amongst the largest known species of butterflies, and 

 in the brilliancy of the colours of many of the species and the 

 grandly ocellated markings of their wings, may equally vie in 

 beauty with any of their rivals. Morpho Cypris is in fact the 

 empress of the butterfly world. In respect likewise to their 

 natural relations, resulting either from their direct affinities with 

 other groups of butterflies, or their more distant analogies both 

 with other butterflies and other tribes of animals, invertebrated 

 and vertebrated, these insects are so interesting, that I cannot 

 but think that a ievf remarks, with reference especially to such 

 relationships as they exhibit, may not be without advantage 

 (affecting as they do the primary distribution of the whole of the 

 butterflies — Lepidojjtcra Diurna or Rhopalocera — as well also as 

 that of the primary groups of the Annulosa themselves), at a time 

 when Lepidopterology counts so many votaries, who, however, for 



