STILBIA. 127 



middle segments, and on the eleventh. There are also several 

 dark brown sinuous lines on the sides. The anal extremity 

 is bifid. It loops in walking. The moth appears in July or 

 August. 



FAMILY STILBIID^E. 

 GENUS STILBIA. 



Stilbia, Stephens, 111. Brit. Ent. Haust. iii. p. 124 (1830); 

 Guene'e, Spec. Gen. Lepid. Noct. ii. p. 433 (1852). 



The few species of this genus are plainly coloured, with 

 long antennae, and short palpi, proboscis and thorax, and a 

 rather slender abdomen, about as long as the hind-wings. 

 The fore-wings are long and narrow, and the hind-wings are 

 broad, and folded closely to the body beneath the fore-wings. 

 The larvae are stout and cylindrical, feeding on grass in open 

 places in woods, and dropping down at the least alarm. 



THE ANOMALOUS MOTH. STILBIA ANOMALA. 



Phytometra anomala, Haworth, Trans. Ent. Soc. Lond. i. 



p. 336 (1812). 

 Geometra hybridata, Hiibner, Eur. Schmett. v. figs. 497, 498 



(1814?). 

 Caradrina stagnicola, Treitschke, Schmett. Eur. v. (2), p. 258 



(1825). 



Stilbia anomalata, Stephens, 111. Brit. Ent. Haust. iii. p. 125- 



(1830); Curtis, Brit. Ent. xiv. pi. 631 (1837). 

 Stilbia anomala, Kirby, Eur. Butterflies and Moths, p. 164 

 (1880) ; Buckler, Larvae of Brit. Lepid. vi. p. 118, pi. 104, 

 fi gs. 3-3 e (1895). 



The Anomalous Moth is a native of England, France, and 

 Western Germany. It expands from an inch to an inch and a 

 half. 



The head and collar are dark grey, the thorax black and the 



