PEOP. J. O. WESTWOOD ON THE UEANIIDiE. 529 



and reaching in a fine curved line to the anal margin just above the anal angle, with 

 several dark lunules between it and the tail. M. Boisduval, evidently overlooking 

 Cramer's figure, described and figured the same species in Latreille's Appendix to the 

 second edition of the ' Regne Animal ' under the name of C. d'urvillii, with the following 

 description, which is stated to be from his pen : — 



" CoRONis d'urvillii. — Dessus des premieres ailes d'un brun olivatre, ayant pres de 

 la base et vers le milieu une bande oblique dentee en scie blanchatre, celle de la base 

 plus ou moins violatre, celle du milieu un peu lavee d'olivatre sur son cote interne qui 

 seul est dente, I'extremite oflfre pres de la frange une double ligne grisatre, dont la 

 plie externe denticulee : ailes post^rieures se terminant par une queue mediocre, un 

 peu spatulee et ofFrant sur le milieu une bande d'un bleu violet vif, tres-large pres de 

 la cote et finissant en pointe pres de Tangle anal. Dessous des quatres d'un brun 

 olivatre pale, avec une bande blanche sur le milieu de chacune, et I'extremite d'un 

 gris jaunatre. Cayenne; de la collection de M. Boisduval." 



Notwithstanding the statement of M. Boisduval that the type was in his collection. 

 M. Guenee, who was allowed by him the unlimited use of his collection, overlooking 

 Boisduval's description, says that he only knew C. d'urvillii by LatreiUe's figure, and 

 that he could not, therefore, describe its colours ; whilst he describes C. orithca from 

 " Cayenne, un <S Coll. Bdv. Cette magnifique espece est toujours tres rare." It is 

 evident, therefore, that M. Boisduval had altered the name of the specimen in his 

 collection from d'urvillii to orithea, probably in consequence of the observation of 

 M. Blanchard in the Crochard edition of the ' Eegne Animal,' that the two insects were 

 synonymous. 



The insect which I have represented in PI. LXXXVII. fig. 3, appears to me to be 

 sufficiently similar to Cramer's figure of the species to allow it to be described as the male 

 thereof, the figures both of Cramer and Boisduval above referred to evidently representing 

 female insects, whilst the two specimens in the Hopeian Collection, one from Columbia 

 (collected by Chesterton) and one from Papagaya (collected by Rogers), are males, 

 having a triangular patch of luteous hairs on the underside of the fore wings near the 

 middle of the posterior margin nearly concealed by the costal portion of the hind wings 

 (and hence overlooked by all writers on these insects), whilst the hind wings have a 

 patch of rough black scales on the upperside between the base and the blue spot. 



The fore wings above are of a very rich maroon-brown colour, the basal fourth 

 part of the wing varied with very slender purplish white lines, forming several more or 

 less oval dark patches. The outermost of these lines is slightly waved at its junction 

 with the principal veins. At a slight distance beyond the middle the wing is traversed 

 by a distinct, nearly straight, narrow, whitish fascia, extending from the costa, where 

 it is a little dilated, to the anal angle, where its inner margin is a little incurved. This 

 fascia is marked on the costa with two short brown marks, the inner one of which 

 extends in a much more slender condition along the inner edge of the fascia. The 



