PTEROPHORIDA-:~LEIOP TIL US. 393 



night, and will come occasionally to light. I have found it 

 on the slopes of an underclifl, but its usual haunts seem to 

 be hill-sides and open woods, and it is found iu both North 

 and South Devon, Somerset, Sussex, Suffolk, Herefordshire, 

 Yorkshire, North Lancashire, Westmoreland and Cumber- 

 land ; in Scotland in Dumbartonshire ; in Wales on the 

 coast of Pembrokeshire, and at Llanferris and the Leet in 

 Denbighshire ; but, so far as is known, not in Ireland. 

 Abroad it inhabits Northern Europe to Norway, Central 

 Europe, France, Italy and Portugal. 



4. L. microdactylus, Huh. — Expanse I to j; inch. 

 (12-10 mm.). Forewings pale brownish-yellow, with the 

 tips darker ; a black dot on the fissure is followed by another 

 above. Hind wings shining drab. 



Antennte of the male simple, whitish-brown ; palpi short, 

 threadlike, purple-brown; head and thorax shining yellowish- 

 white ; abdomen very slender, pale 3'ellow. Fore wings 

 short, the lobes rather separated and pointed, pale primrose 

 yellow, slightly dusted with brown ; a black dot is situated 

 just before the fissure, a larger one just beyond it on the 

 costa, and the two lobes are dotted and shaded on the upper 

 margins with black-brown ; cilia pale golden-brown. Hind 

 wings short, the lobes narrow, glistening pale grey-brown 

 or whitish-brown ; the cilia browner ; legs yellow. Female 

 similar, but usually a little larger. 



Underside of the fore wiugs smoky yellow-brown, with a 

 white edge to the i^iiddle of the costa and beyond a blackish 

 spot. Hind wings shining grey-brown. Body pale yellow. 



Variable in size and in the ground colour, from j'ellowish 

 white to pale yellow-brown. 



On the wing from June till early in August, in two 

 generations. 



Lakva slightly bristly ; head pale brown, jaws darker, 

 dorsal plate not visible ; body white, with a broad faint band 



