180 Mr. E. Boubleday on some new Diurnal Lepidoptera, 



and reaching the inner margin of the posterior wings near the 

 middle. Beyond this is a less curved band commencing on the 

 costa beyond the middle and reaching nearly to the anal angle, 

 followed by a space rather paler than the rest of the wings. Be- 

 yond the middle are four black dots, the first and fourth largest, 

 the latter pupiled with white. Faint indications of the bands 

 above are visible below. 



Head rufous ; antennae brown, darker towards the apex ; palpi 

 red. 



Thorax and abdomen brick-red. 



In the collection of H. G. Harrington, Esq. 



Fam. NYMPHALID^. 



Genus Diadema, Boisd. 



The genus Diadema of Boisduval is a most interesting one, 

 from the resemblance which many of the species bear to those of 

 other families. In general we find a Papilio and either an Eu- 

 ploea, Danaus or Acraa always of the same country, which they 

 much resemble in form, colour and character of the markings, — 

 in some species so close as to have caused some confusion as to 

 their identity with the older figures. In D. Bolina it is only the 

 female which offers this resemblance to species of other groups, 

 and as yet there has not been found representatives for two or 

 three species, but probably some day these will occur. 



D. Boisduvalii. D. alls subdiaphanis, anticis fuscescentibus, supra 

 basi margineque interne pallida rufesceutibus, maculis basalibus 

 discoidalibusque decern, striolisque marginalibus septem nigris ; 

 posticis rufis basi maculis nigris undecim, margine externo nigro, 

 rufo maculato. Exp. alar. 3 unc. 9 lin. vel 95 millim. 



Hah. Ashanti. Diadema ? Cat. of Lep. of Brit. Mus. 97. 



Anterior wings semitransparent, fuscescent, the internal mar- 

 gin tinged with red : in the discoidal cell are four rounded black 

 spots, three placed in a triangle towards the base, one near the 

 extremity, a similar spot on the disco-cellular nervule, one on the 

 first median nervule, three at the base between the median and 

 radial nervure, one on the radial a little beyond the middle ; ner- 

 vules fuscous, between them a series of fuscous striae, on the fourth 

 of which is a rounded whitish spot. Posterior wings rufous, 

 paler towards the inner margin, the base itself black ; the dis- 

 coidal cell with three rounded black spots, the two nearest the 

 base almost confluent ; around the cell are six black spots, of 

 which the fourth is very small, the fifth on the disco- cellular ner- 

 vure. These are followed by two spots near the inner margin ; 

 the outer margin has a rather broad black border, undulated in- 

 ternally, marked with seven more or less lunulated red spots. 



