176 [January, 
tinctis discalibus nigris : posticse punctie marginalibus, aliis majoribus 
sub-marginalibus ; serie macularum discalium irregular!, pimctisque 
nonnullis basalibus, nigi'is : corpus olivaceum. Exp. alar. unc. 1|. 
? . Alae supra flavo-ferrugineae velut, mari maculatso : subtus 
punctis margiaalibus ferrugineo-fuscis ; lineolis discoideis anticaruin 
indistinctis, aliisque velut supra, nigris : corpus albidum. 
Exp. alar. unc. 1^. 
Tapayos, Brazil. ^ ^ . B. M. 
There are several beautiful undescribed species of this group in 
Mr. Bates' Collection. 
DESCRIPTION OP A NEW SPECIES OF TOBTBICINA. 
BY H. G. KNAGGS, M.D., F.L.S. 
DiOEOBAMPHA FLAYiDOESANA, n. sp. Kuaggs, Ent. Annual, 1867, 
p. 148, fig. 5. 
Mas. Alts anticis saturate fuscis, fasciis tribus apicem versus ohliquis 
angustis Icete fidvis ; inter has lineis ccsruleis metallicis interpositis ; 
margins apicali, puncta nig^^a tria vel quatuor continente, Icdle fulvo ; 
costcd dimidio externo punctis pallidis et nigris alternis vario ; lunula 
dorsali conspicue flavd, sed magnitudine et forma variahili : posticis satu- 
ratioribus, ciliis palUdioribus. 
EcBm. Similis, sed alis obscurioribus ; D. Petiverellce persimilis. 
Exp. alar. (J circ. 6'" ; $ minor. 
Habitat Haslemere, N. Devon, et ? 
D.Jlavidorsana is intermediate between D. alpinana and D. Peti- 
verella, the male partaking of the characters of the former, the female 
of those of the latter. The male, however, is easily distinguished from 
alpinana by its darker ground colour, from Petiverella by the brightness 
of the apical oblique tawny bands, and from both by the vividness .of 
its conspicuous dorsal patch. The female is not readily separable from 
either sex of Petiverella, though the apical oblique bands and the blue 
metallic lines between them are a trifle more evident than in that 
species. ' 
Some two years or more ago, my friend, Mr. C. G. Barrett, sent 
me up, among a batch of " insecta non detenninata,^' a male example of 
the insect under notice : but, although I then strongly inclined to con- 
sider it a species not included in our lists, I was induced to return it as 
" alpinana ? " after seeing a similar specimen in the collection of Mr* 
Doubleday, who at that time seemed to be confident that it was merely 
a variety of alpinana. 
