GEOMETRID^. RUMIA. 173 



lunular spot of the same hue in the middle : cilia interrupted with fuscous 

 spots, darkest on the posterior wings. Female pale luteous-yellow, freckled 

 and marked as in the male. 



One of the most variable insects of this family : sometimes the wings in the 

 male are pale luteous, freckled with fuscous, with or without the fuscous 

 spots on the cilia, and in rare instances without the freckles or lunule: at 

 others the apex of the anterior and the hinder margin of the posterior are more 

 or less hghtly bordered with fuscous ; and I possess one example with the 

 anterior wings bright fulvous and the posterior pale yellow. The female also 

 varies in being of a paler or brighter yellow. 



In other instances the base and hinder margin of all the wings are fuscous, and 

 the centre orange or yellow, according to the sex, with a fuscous lunule, and 

 generally more or less freckled, very rarely immaculate. In this series of 

 varieties the fuscous hinder margin is occasionally more or less interrupted 

 with fulvous or yellow ; and the cilia are sometimes spotted, at others imma- 

 culate; and the posterior Avings are in some cases entirely fuscous. 



Caterpillar ferruginous, or brown, with lighter spots on the sides, the head and 

 tubercles reddish:— it feeds on various plants, such as the elm, sloe, white- 

 thorn, nut, broom, lilac, &c ; and the imago appears towards the end of June. 



Very common in woods and bushy lanes throughout the metro- 

 politan district. "Westmoreland." — W.C.Hewitson^Esq. "Kenil- 

 worth, Hay-wood,&c.''— i?^t;. W. T.Bree. " Y.^i^'mg:'— Mr. Double- 

 day. " Weston-on-the-green."— /if£ft;. A. H. Mattheivs. 



Genus CLXXVIII. — Rumia, Duponchel. 



Palpi short, rather incurved, very squamous, triarticulate, the basal joint rathcj. 

 stout, bent, second longer, curved outwards, and slightly attenuated, terminal 

 small, ovate-conic: maxillw long, incrassated at the base. Antennw simple in 

 both sexes, a little incrassated, and obscurely serrated in the males within : 

 head small : thorax slender, rather woolly : wings partially expanded during 

 repose, anterior entire, posterior obtusely angular in the middle; abdomen 

 slender, carinated down the back, rather stouter in the female. Larva with 

 14 legs, elongate, cylindrical; head round; two prominent tubercles on the 

 sixth segment, the sides posteriorly a httle corrugated : pupa slender ; formed 

 in a slight web amongst leaves. 



In this genus both sexes have simple antennae, though it is 

 evident from the metamorphosis that it is closely allied to this 

 group of the Gpometridse : the wings are entire, with the posterior 

 slightly angulated in the middle of the hinder margin ; they are of 

 bright yellow tints, with dark clouds disposed in irregular strigse 

 and dissimilar costal spots : the larva has 14 legs. 



