16 HAUSTELLATA. — LEPIDOPTERA. 



This genus, which, perhaps, ought to be still more restricted, 

 might readily be divided into at least two, from the dissimilarity of 

 structure in the legs of the male insects, exclusively of other points of 

 distinction, may be recognised by the recurved palpi, which are at the 

 same time very long, combined with the tufted head and transversely 

 streaked wings, in addition to the fascicles of hairs, which adorn the 

 anterior legs, but which are very short in one of the species. 



A. Wings pale with dark transverse streaks: anterioi- tibia; of the males with 

 a short fascicJe of hairs. 



Sp. 1. derivalis. Plate 33. f. 2. Atis fusco-Jlavidis, lituru mediil in om- 

 nibus sir igis duabus anticarmn, una poaticarum^fuicis. (Exp. Alar. 1 unc. 

 2—3 lin.) 



Py. derivalis. Hiibner. — Polypogon derivalis. Steph. Catal. ii. 158. No. 6763. 



Wings dusky-yellowish, sprinkled minutely with dusky; all with a short 

 fuscous line in the middle^ sometimes faintly curved externally ; the anterior 

 also with two distinct fuscous streaks, one towards the base slightly incurved, 

 and the other beyond the middle very strongly incurved, and carried forward, 

 as it were, to the inner margin of the posterior wings j on the extreme edge 

 of all the wings is a delicate brownish line : cilia slightly darker than the 

 rest of the wings. 



A rare species ; taken in the neighbourhood of Bexley and Da- 

 renth, also at Woolwich and Dover, but I believe never in plenty : 

 it has occurred in Devonshire. 



B. Wings dark coloured, with darker streaks, the anterior one straight : anterior 



legs of the males dilated, sometimes with a fascicle of hairs, 



tarsi short or wanting. 



a. Anterior tarsi wanting in the males. 



Sp. 2. nemoralis. Alls sordide rufescentibus, anticis lunula strigisque tribus 

 Juscis, intermedia Jlexuosa, postica recurvL (Exp. Alar. 1 unc. — 1 unc. 

 1—2 lin.) 



Py. nemoralis. Fahricius. — Polypogon nemoralis. Steph. Catal. ii. 158. 

 No. 6765. 



Wings dull reddish, sprinkled with minute dusky atoms ; the anterior with a 

 straight brown line before the middle, a short lunate streak in the middle, a 

 slender flexuous one behind the middle, and a broader and darker recurved 

 one towards the hinder margin, arising from the extreme tip of the costa; on 

 the hinder margin is a faint dusky line : posterior wings dusky, with one or 

 two faint, waved, dusky streaks, externally bordered with whitish, towards 

 the inner edge : cilia dusky. 



