TRACHEA IMPULSA Gn. 
We doubt if mixta Grt. should be placed as a synonym of this 
species; the differences as given by Hampson (Cat. Lep. Phal. VII, 
210) appear to us to be of specific value. 
AGROPERINA OBLIVIOSA WIk. 
This has been listed by Hampson as a synonym of Jateritia Hbn.; 
we think however it may prove to be a good species; it is an even 
gray-brown, not reddish, without any contrasts, an indistinct clavi- 
form, a rather dentate t. p. line with slight white shading at inner mar- 
gin and an obscure s. t. line without dark shading; the type locality is 
Rocky Mts. (Lord Derby). 
EREMOBIA ALBERTINA Hamp. 
This is apparently only a slight varietal form of claudens WIk.; 
we can see nothing that would warrant its retention as a distinct 
species. 
ACRONYCTA HAMAMELIs Gn. 
The specimen in the British museum labelled in Guenée’s hand- 
writing “hamamelis” and considered by Hampson a co-type is a worn 
specimen of afflicta Grt. We doubt if it can be held as a co-type, for 
Guenée states his specimens came from “Coll. Bdy.” which is with 
Mr. Oberthur at Rennes; we regret not to have seen this species when 
paying our short visit to this noted collection. 
ACRONYCTA LOBELIAE Gn. 
The sa-called type in the British Museum must be regarded as 
spurious since Guenée states the type specimen is in ‘Coll. Bdy.” In 
any case it is furcifera Gn. of Smith’s monograph and this is possibly 
the cause of Butler’s rediscription under the name of grote: of what 
commonly goes as lobeliae Gn. If the types are in existence they will 
be with M. Oberthur at Rennes. 
ARZAMA DENSA WIk. (syn. Sphida oecogenes Dyar) 
The type of densa WIk. proves to have a frontal protuberance and 
is quite distinct generically from Bellura gortynoides Wilk. The genus 
Arzama Wk, will therefore take precedence over Sphida Grt. There 
are several specimens of the type lot of oecogenes Dyar in Coll. Barnes, 
received years ago from Prof. Riley; one of these agreed exactly with 
