GEOMETRIDAH—PSEUDOTERPNA. 277 



The moth sits during the day usually underneath a leaf of 

 its food-plant, pressed closely and flatly to its surface, and 

 flutters feebly out on being disturbed, to hide itself in a 

 similar spot, or to settle down on any neighbouring plant. 

 Rather a lazy species at all hours. At dusk it flies about the 

 same bushes, and may be attracted by a strong light, but at 

 no time exhibits any great vigour. Common in all woods in 

 which undergrowth is plentiful, but more especially in those 

 containing open damp ground with plenty of sallow bushes j 

 also very common in the fens. In such suitable spots 

 abundant throughout England, Wales, and Ireland, and 

 common in the South and East of Scotland ; extending so 

 far north as to Moray and West Ross. Abroad it is common 

 through Central Europe, the more temperate regions of 

 Northern Europe, Central and Northern Italy, the Ural 

 Mountain district, Eastern Siberia, Tartary, Central China, 

 and Japan ; in these latter chiefly in its darker forms. 



Family 2. GEOMETRID^. 



Antennae pectinated or simple ; palpi small, tongue mode- 

 rately developed ; thorax rounded or narrow, covered with 

 soft downy scales ; abdomen rather short, moderately slender^ 

 sometimes slightly crested; fore wings rather trigonate^ 

 ample ; hind wings moderately broad and having vein 5 fully 

 developed, and placed much nearer to vein 6 than to vein 4. 



Larv^ somewhat stiff, often stout and rather hunched,, 

 frequently having a pair of points on the second and anal 

 segments. 



PUP/E usually green or grey, in a slight silken cocoon. 



Genus 1. PSEUDOTERPNA. 



Antennas of the male shortly pectinated ; palpi curved 

 upwards ; head smooth, with a transverse division across the 

 face ; thorax rounded, smooth in the middle, shoulder-lappets 



