TrifidM. 9"^ 



Formerly much more plentiful than at the present time. 

 It was abundant in 1847 and 1848 in Yaxley Fen and 

 Holme Feu ; in 1859 at Hammersmith Marshes, London ; and 

 more recently in the Plumstead Marshes, Kent ; and doubtless 

 so continued until these localities were destroyed. Still found 

 in more moderate numbers in the remaining fens of Cam- 

 bridgeshire and in those of Norfolk' ; and more rarely in 

 Suffolk and Essex. In Norfolk, besides the fens, it has been 

 taken at Merton by Lord Walsingham, and at King's Lynn 

 by Mr. E. A. Atmore, and there is a record at Upwell, on the 

 borders of Cambridgeshire. So far as I know, this is the 

 extent of its range in these Islands ; abroad it is found in 

 Holland, Northern and Western Germany, Austria, Hungary, 

 and Eastern, Central, and Southern Russia. 



Genus 51. TAPINOSTOLA. 



Antennae ciliated ; eyes naked, with prostrate back lashes ; 

 thorax smooth, moderately stout ; abdomen more slender, 

 without crests ; fore wings somewhat triangular or elongated ; 

 colour usually some shade of drab or wainscot ; markings 

 obscure or absent ; hind wings rather small, thin in texture, 

 vein 5 very slender, arising below the middle of the cross- 

 bar. 



Larv^, so far as known, naked, of dull pale colouring, 

 inhabiting stems of grasses and sedges. 



PuPiE rather slender, in the larval habitation. 



We have six species — which do not tabulate very clearly. 



A. Fore wings short, 



B. Fore wings drab or reddish-drab with brown nervures. 



T. fidva. 

 B"-. Fore wings truncate, bone-white, second line faintly 



dotted. T. concolor. 



A?. Fore wings not very short. 



