TORTRICID.E. — ORTHOT.fll.IA. 195 



although I have a remarkably fine pair that were taken a year or 

 two previously in Essex. A small gap at the north-west corner of 

 Darenth wood, at the angle of the first field from the lane leading- 

 from Dartford, was the spot where I obtained my specimens, and at 

 the time they were found about a dozen more were secured. I believe 

 a single specimen has been found this season. 



Genus CCCXVIII.— Orthot elia* 7}2ihi. 



Palpi very long, slender, parallel, recvirvetl, clothed with scales, the basal 

 joint stoutest, the second and third of nearly equal length, the last being 

 acute : maxillae short. Antennas rather long, very slender and simple in 

 both sexes : head with a short tuft between the antennae : eyes rather large, 

 globose: thorax xohusi, not crested: wings enine ; anterior elongate, sub- 

 linear, the costa not produced at the base, the hinder margin subtruncate, 



, with very short cilia; anterior angle acute, binder rounded; posterior 

 wings short and broad, with the apex rounded, and the hinder margin not 

 sinuated: body long and rather stout, with a ridge on the back, and a small 

 tuft at the apex. 



Of this singular genus, which in many respects resembles Chilo, 

 but differs therefrom in having but two palpi, as well as in the trun- 

 cated anterior wings, I know but one species, the larva of which 

 subsists within the stalks of the Bullrush : — like the two preceding 

 genera it has the palpi recurved ; but the antennae are short, and 

 the anterior wings have neither transverse streaks nor are they reticu- 

 lated, but are faintly streaked longitudinally with alternate light and 

 dark lines, forming a radiated appearance. 



Sp. 1. venosa. Plate 35. y. 3. — Alis anticis ochreo-Jlavis venis radiantibus 

 fitscis, macniaque subpostica pallidiore. (Exp. Alar. 10 — ISlin.) 



To. venosa. Haworth MSS. — Or. venosa. Steph. Catal. ii. 192. No. 7155. 



Anterior wings ochreous-yellow, with brown radiating nervures, becoming 

 somewhat confluent, and forming a slightly triangular patch, at the hinder 

 margin ; towards the inner margin are a few dusky dots, and an obscure 

 palish spot on the disc behind the middle : posterior wings whitish, a little 

 dusky towards the inner margin ; cilia pale. 



Some examples are darker than others, and the insect varies a little in size. 



The larva feeds on the inner substance of the stalk of the bullrush. 



Op9oc rectus, tiKoq finis. 



n2 



