OPISTHOGRAPTIS 203 



or in the ground. One or two of these larvae are " cannibals," 

 feeding on other larvae when they have an opportunity. 



GENUS OPISTHOGRAPTIS. 



OpisthograptiS) Hiibner, Verz. bek. Schmett. p. 292 (1822?). 

 Rumia, Duponchel, Lepid. France, vii. (2), p. 117 (1829); 

 Guenee, Spec. Gen. Lepid. Uran. et Phal. i. p. 108 (1857). 

 The antennae are simple, the palpi short and hairy, and 

 the hind tibiae are not swollen, but armed with short spurs. 

 The wings are entire, and the fore- and hind-wings are nearly 

 uniformly coloured. The larvae are remarkable for possessing 

 fourteen legs, having two rudimentary pairs in front of the 

 usual pair of pro-legs ; and dorsal and lateral appendages on 

 some of the hinder segments. They feed on trees, and the 

 pupae are enclosed in strong cocoons attached to the branches. 



BRIMSTONE MOTH. OPISTHOGRAPTIS LUTEOLATA. 



(Plate CXLVI., Fig 2.) 

 Geometra luteolata, Linnaeus, Syst. Nat. (ed. x.), i. p. 525, 



no. 168 (1758). 

 Geometra cratcegata, Linnaeus, Faun. Suec. p. 336 (1761); 



Hiibner, Eur. Schmett. v. fig. 32 (1797). 

 Ennomos cratcegata, Treitschke, Schmett. Eur. vi. (i), p. 41 



Rumia cratagata^ Stephens, 111. Brit. Ent. Haust. iii. p. 174 

 (1831); Buckler, Larvae of Brit. Lepid. vii. pi. 106, 

 fig.5-5 c (1897). 



Rumia luteolata, Kirby, Eur. Butterflies and Moths, p. 305. 



kpL 44, figs. 2-2 b (1881). 

 The Brimstone Moth is common throughout Europe, Asia 

 linor, and Siberia. The wings expand from an inch to an 

 ich and two-thirds. 

 



