NOTODONTID^i:. STAUROPUS. 21 



Genus XXXVIII. — Stauropus, Germar. 



Falpi short, clothed with elongate scales, straight, cylinclric, biarticulate, the 

 terminal joint acute : maxilla; obsolete. AntennoE porrect, simple at the apex ; 

 of the male strongly bipectinated, from the base nearly to the tip ; of the female 

 simple throughout : head very small : eyes large : thorax not very stout, nor 

 crested: abdomen somewhat elongate, rather attenuated towards the apex, 

 which is furnished in both sexes with a tuft of fine woolly hair: wings entire, 

 thickly clothed with scales, with several elevated tufts of scales and down ; 

 anterior lanceolate-ovate ; posterior ovate-triangular : hgs rather short, thickly 

 clothed with down : anterior tibice in both sexes with an elongate attenuated 

 spine or lobe ; posterior with spines at the apex only. Larva naked, the back 

 with several acute protuberances, the caudal segments laterally expanded and 

 reflexed, with the liinder prologs converted into two styliform processes : pupa 

 folliculated. 



Stauropus differs from the other genera of this family by having 

 several patches of elevated scales on the anterior wings, which are 

 rather densely clothed with scales, and somewhat pilose ; the body 

 is very downy beneath, and both sexes have a soft tuft at the apex 

 of the abdomen, which is slightly elongate : the male has the tip, 

 and the female the whole, of the antennie simple. 



Sp. 1. Fagi. Alis riifescente-cinereis, anticis fasciis diiabus linearihus luteis 

 Jlexuosis, serieque pwictoruvi nigrormn. (Exp. alar. $ 2 unc. 4 — 6 lin. : ^ 

 2 unc. 6 — 8 lin.) 



Ph. Bo. Fagi. Linne.—JDon. xii. pi. 328.— St. Fagi. Steph. Catal. No. 59G7. 



Cinereous: anterior wings deep ashy-gray, tinged with reddish, especially towards 

 the inner margin ; the base hoary, with a rugose black spot at the shoulder ; 

 followed by a narrow flexuous lutescent striga, and a second beyond the middle 

 very much waved and indented ; the space between deep dusky-ash ; midway 

 between the posterior striga and the hinder margin, near the costa, is a lunular 

 yellowish spot, bounded exteriorly with black, and nearly parallel with the 

 hinder margin is a slightly waved row of elevated blackish spots : posterior 

 wings deep cinereous, with the base paler, and an undulated whitish indented 

 and abbreviated striga on the anterior margin ; the posterior margin with a 

 continuous series of whitish lunular marks : the cilia of all the wings cinereous, 

 varied with hoary : back with a dusky streak down the middle. 



Caterpillar pale rusty-brown, with the fifth, sixth, and seventh dorsal segments 

 bearing a conical protuberance, the anal segments laterally expanded and de- 

 pressed, the terminal one furnished at its apex with two styliform processes 

 in lieu of legs; the six anterior legs elongated: it feeds on the beech, oak, 

 hazel, birch, lime, alder, and sloe ; and is found in the autumn : while at rest 

 its anterior legs hang down, and its head and tail are elevated, the latter being 

 frequently reflected on the back : pupa dark glossy brown, enclosed in an irre- 

 gular closely woven smooth web of a very peculiar texture. 



