TRIFIDA^. 135 



places iu or near woods. Formerly common in Holme and 

 Yaxley Feus till they were drained, still common at Wicken 

 Fen and other suitable spots in Cambridgeshire and Hunting- 

 donshire, also in the more extensive fens of Norfolk, and in 

 the wet jjortions of heaths, though in Suffolk it seems to be 

 scarce. It inhabits marshy spots near Deal, Kent ; Brighton, 

 Sussex ; in the New Forest, Hants ; the Isle of Purbeck, 

 Dorset ; and the boggy hollows of heaths in Berks ; there is 

 also a record in Devon ; and in Yorkshire it is known to 

 occur in several localities, but apparently not further north. 

 In Wales it has been taken near Neath ; in Ireland at 

 Mucross, Killarney, and at Glengariff, Co. Cork, and has 

 been recorded in Galway. Abroad its range is over the 

 greater portion of Central Europe, Northern Italy, Dalmatia, 

 Southern and Western Russia with the Ural Mountain 

 district, and Northern and Eastern Siberia. 



2. L. impura, Hilh. — Expanse 1;^ to If inch. Thorax 



moderately stout, abdomen less so ; fore wings blunt, rather 

 narrow, pale ochreous-drab, with a dark stripe along the 

 median nervure edged above with whitish-drab ; hind wings 

 dark smoky-grey. 



Antennae of the male stout, simple, minutely ciliated, 

 blackish-drab at the back, but paler at the base, light brown 

 in front ; palpi rather small, moderately tufted, drab, shaded 

 on the outside with black-brown ; head rather prominently 

 tufted, pale drab ; eyes covered with hardly perceptible up- 

 right brown bristles ; eyelashes deep black ; thorax smoothly 

 covered with long, loose-looking scales, drab in front, paler 

 at the back ; along the inner edges of the shoulder-lappets 

 are a few black dots ; fascicles white ; basal segments of the 

 abdomen covered with similar long white hair-scales, tinged 

 with brown on the dorsal ridge ; rest of the abdomen pale 

 drab, the lateral and anal tufts conspicuous. Fore wings 

 rather short and blunt; costa rounded; apex squarely angu- 

 lated ; hind margin nearly perpendicular, but much rounded 



