1911.1 187 



to be this species at Waltou-on-Naze (Essex) in Jiuie, 19U8. The thoracic 

 markings, and the whitish base to the wings, together with the black legs, pale 

 halteres, and grey banded abdomen, serve to distinguish it. In this species, as 

 in caviceps and unicornis, the facial profiles of the sexes differ, that of the male 

 in varicgata very miich resembling the profile of male caviceps. 



Csenia furnosa, Stenh. — This is the Ccenia albula, Mg., of the "List" as 

 distinguished by Haliday ; Meigen's albula being now considered an Ephydra, 

 Stenhammer's name may be used. 



Csenia defecta, Hal. — Now ti-ansferred to the genus Philotelma. 



Csenia obscura, Mg. — This name need no longer biirden the " List," for 

 according to Becker it was described from a specimen of Hydrcllia griscola ; it 

 only stood in oiu- " List " on the authority of Walker. 



*Cienia curvicmida, Meig. — This is undoubtedly distinct from jmlustris, Fin., 

 the halteres are dark and the male hypopygimn is very large, reaching to the 

 hind margin of the second abdominal segment. I have taken it in Cambridge- 

 shire, Siiffolk, Norfolk and Herefordshire. 



(To be continued). 



ALGEEIAN MIC ROLEPIDOPT E BA. 



BY THE RIGHT HON. LORD WALSINGHAM, M.A., LL.D., F.R.S., &c. 



(Continued from p. 15). 



OECOPHOBIBAE. 



355. PLEUROTA Hb. 



3085'1. Pleurota neotbs, sp. n. 



Antennae gi'eyish fuscous, with faint pale annulations. Palpi whitish 



ochreous above, the lower half (or more) dark fawn-brown ; the terminal joint 



short, partially concealed. Head and Thorax pale ochreous. Forewings pale 



ochreous, with a slight brownish tinge, the costa narrowly whitish nearly to 



the apex ; a pale space along the cell from near the base is slightly dilated 



outward, and in some specimens separates the rather darker subcostal area 



from the almost equally dark plical and dorsal area, but in others this paler 



space is almost entirely obliterated by the ochreous scaling, the only difference 



being that the Avhole length of the wing adjacent to the pale costal streak 



shows a stronger admixttu-e of the brownish tint than is exhibited below the 



middle of the wing ; there is no terminal line at the base of the pale ochreous 



cilia ; the costal streak is visiljle on the iinderside, which is otherwise dvUl 



tawny. Exp. al. 11-14 mm. Hindwings rather dark tawny brownish grey ; cilia 



somewhat paler, with a slight shade-line along their base. Abdomen dark 



tawny brownish grey. Legs tawny brownish grey, hind tibiae paler brownish 



grey, the tarsi still paler, almost white. 



Type S (8394) Mus. Wlsni., British Museum. 



Hah.: Algeria: Coustautiue, 6-20.V.1895 (^aio/t), 6.V.1904 {Wlsm.) 

 Nine specimens. 



