94 IIAUSTELLATA, — LEPIOOPTERA. 



Antenna simple in both sexes, with a short seta on each articulation in the 

 middle on both sides in the males: head short, squamose in front: wings, 

 anterior elongate, subelliptic, convoluted ; posterior broad, folded : body sub- 

 linear, stoutest in the females, the apex tufted in the males : legs moderate : 

 tibia short and slender. Larva more or less hairy : pupa foUiculate. 



The Lithosiae are insects of \ery simple colours, being usually 

 of various tints of ochraceous or yellow, with lighter margins, 

 whence they have obtained the name of Footman Moths. From 

 the great uniformity of their colouring, and the almost total absence 

 of maculation or strigse, the species have been much confused, and 

 their synonymy confounded: I believe, however, that the following 

 species are correctly named, and their synonyms properly ar- 

 ranged, in my Catalogue : their singular biarticvdate palpi at once 

 distinguish this genus from the others of the family; but in Li. 

 quadra the terminal joint is ratlier elongate and bent upwards. 



Sp. 1. aureola. Plate 18. f. 1. Alix anticis luteo-fulvis, subtds disco fuscu, 

 posticis ntrinqvejlavis. (Exp. alar. 10 lin.— 1 unc. 2 lin.) 



Bo. aureola. Hiibner. — Li. aiu-eola. Steph. Catal. ]Vo. 6050. 



Antennse dusky, yellowish at the base : head, thorax, and apex of the abdomen 

 orange : legs ashy-gray : anterior wings bright luteous orange above, im- 

 maculate; beneath with a broad fuscous patch occupying the entire disc, 

 leaving the margin above luteous : posterior wings paler, immaculate on both 

 sides : fringe of all deep orange. 



Caterpillar black, with three pale-yeUow, interrupted stripes on the back, and 

 some white spots on the tail : it feeds on the spruce fir (Pinus Abies) and 

 Scotch fir (Pinus sylvestris), and is found in May and June : the imago 

 appears about the middle of July. 



Decidedly a scarce species near London : I have taken it at 

 Birch-wood, and in a fir-plantation near Ripley ; it has also been 

 found at Coombe-wood. 



Sp. 2. helvola. Alis anticis lividis cinereo fulvocpie viarginatis. (Exp. alar. 



9 lin. — 1 unc. 2 lin.) 

 Bo. helvola. — Hiibner. — Li. helvola. Steph. Catal. No. 6052. 



Antennae with the shaft whitish, the cilia lutescent : head and thorax luteous : 

 abdomen grayish-yellow, with the apex luteous : anterior wings ochraceous- 

 yellow, the hinder-margin ashy-gray, and the anterior towards the apex 

 luteous ; beneath the disc is fuscescent, with the margins luteous : posterior 

 wings ochraceous yellow, with the hinder margin cinerascent : fringe of all 

 the wings luteous. 



Also very rare, especially near London : my specimens occurred 

 near Brockenhurst in the New Forest, where the insect has been 



