i85 LEPIDOP 1 ERA . 



are concerned, while strengthening itself locally, remained' 

 very restricted in locality ; but so far as intermediate shades 

 are in question greatly extended itself. It is worthy of 

 remark also that the grey forms are well known in mountain 

 districts on the Continent, though apparently not the black 

 variety. 



3. T. extersaria, Halt. : luridata, Staud. Cat. — Ex- 

 panse 1|- to Ig inch. Slender; fore wings greenish-grey, 

 abundantly dusted and spotted with black ; transverse lines, 

 when visible, black, especially so on the costa ; just before 

 the hind margin is an irregular white stripe, joined in its 

 middle to a large pale spot. Hind wings rather paler. 



Antennae of the male simple, rather thick, closely ciliated, 

 black-brown, the shaft dotted with whitish-brown; tongue 

 well developed ; palpi extremely small, pale brown ; face 

 smooth, head rough, both blackish-brown, divided by a black 

 transverse channel; eyes very prominent, leaden-black, striped 

 with deep black ; neck and collar golden-brown, the latter 

 edged with black ; thorax rough, golden-brown, dusted and 

 barred with black; abdomen smooth, reddish-brown sprinkled 

 with black; lateral tufts large; anal tuft small, yellow- 

 brown. Fore wings moderately broad ; costa arched ; apex 

 rounded ; hind margin oblique and gently curved ; dorsal 

 margin a very little filled out, but thickly ciliated with long 

 black and pale brown hair scales ; colour soft light brown, 

 abundantly dusted with black-brown ; lines obscure, but 

 rather direct, the first principally indicated by three cloudy 

 black spots on nervures, that at the costa the largest ; second 

 line a series of small black dots hardly distinguishable among 

 the black dusting ; discal spot lunate, black ; just behind it 

 is a faint curved central shade, ending in a black dorsal spot ; 

 beyond the second line is a broken cloudy-black transverse 

 stripe, the outer edge of which is formed into crescents and 

 edged by a white subterminal line, while it is interrupted in 

 the middle by a large squared whitish spot ; a row of black 



