African Micro-Lepidoptera. 127 



wing ; all the white markings are delicately margined before and 

 behind with lines of brownish fuscous scales; cilia at the anal 

 angle pale greyish fuscous. Hind wings pale greyish fuscous ; 

 cilia the same. Abdomen greyish brown. Legs white, banded 

 and spotted with brownish fuscous ; tarsal spurs white, with a 

 brownish fuscous spot on each. Exp. al. 7 mm. 



Hob. Bathurst (Gambia) ; one specimen bred from 

 mines in a species of mallow, November (Carter}. 



Type, <?, Mus. Wlsm. 



This species belongs to the scalariella group. 



LYONETIAN.E. 



MICEOTHAUMA, gen. n. 



(juu*p6s= little, 6au[Ax = marvel.) 



Type. Microthauma mctalli/era y Wlsm. 



[PL vii., fig. 87.] 



Antennce with basal joint enlarged and clothed with a conspicuous 

 eye-cap. Labial palpi drooping. Maxillary palpi obsolete. 

 Haustellum present. Head tufted ; face smooth. Fore wings 

 moderately broad, acuminate. Neuration 8 veins ; 1 forked at 

 base ; 2 from near angle of cell ; 4 from the cross-vein closing cell ; 

 5 and 6 from a common stem ; 7 from beyond middle of cell to 

 costa ; 8 to costa before middle. Hind wings narrow, elongate, 

 acuminate, tapering from base outwards. Neuration 4 veins ; 

 3 and 4 from subcostal vein, 4 to apex ; cell open. 



This genus differs from Opostega in neuration, as well 

 as in the more developed drooping labial palpi. 



[PL vi., fig. 69.] 



C, Microthauma metallifera, sp. n. 



Antenna and eye-caps white. Palpi short, depressed ; whitish. 

 Head white, tufted above ; face smooth. Thorax white. Fore 

 wings shining white ; a small indistinct spot of bronzy scales, 

 mixed with golden yellow, on the costa before the middle, has an 

 outwardly oblique inner margin pointing towards the apex of an 

 also outwardly oblique bronzy metallic dorsal streak slightly 

 .beyond it, which is connected with a bright patch of golden yellow 

 metallic scales, blending iuto bronzy brown at their outer and 

 lower extremity ; this patch occupies about the middle of the 

 dorsal margin ; before it, much nearer to the base, is a smaller 

 spot of dark bronzy brown metallic scales ; on the costa beyond 



