NOCTUID^. — XYLINA. ITl 



No. semibruiinea. Haworth.—Xy. semibrunnea. Steph. Catal. part ii. p. 87. 

 No. 6179. 



Head and thorax reddish or ashy-brown, with the sides of the latter and apex 

 of the crest of a deeper hue or nearly black ; anterior wings with the costal 

 half deep ashy-brown or reddish-ash, the inner half of the same hue more 

 or less clouded with fuscous-brown, the clouds disposed longitudinally, with 

 an oblique bent pale streak or hook dividing the broadest cloud towards the 

 apex of the wing, somewhat as in Cucullia; Schrophularia; and Verbasci : to- 

 wards the base are some pale angulated streaks and a deeply angled one near 

 the hinder margin ; the stigmata are rather indistinct, and behind the pos- 

 terior one is an obscure arcuated striga composed of very minute black dots : 

 the cilia are clouded with pale and deeper brown: the posterior wings pale 

 ashy-brown, with the margin darker, the nervuxes and a small central spot 

 rather dusky : abdomen, with its dorsal tufts, tipped with dark fuscous-brown. 



A rare insect near London; I possess a specimen that was cap- 

 tured at Coombe-wood, and obtained a pair from the Marshamian 

 cabinet. 



Sp. 5. petrificata. Plate 23. f. 1. — AUs anticis latioribus griseo fuscoque 

 striatis, lineold baseos alterfique versus viarginem interiorevi atro-hrunneis, 

 stigmatibus pallidioribus. (Exp. alar. 1 unc. 8 — 8^ lin.) 



No. petrificata. Wien. V. — Xy. petrificata. Steph. Catal. part ii. p. 78. No. 

 6180. 



Pale ochraceous or griseous-brown ; anterior wings the same, with darker clouds; 

 a longitudinal streak at the base, and another on the disc towards the middle 

 of the inner margin, of a deeper brown ; the stigmata pale ochraceous; be- 

 hind the posterior one is an arcuated striga composed of a double series of 

 minute fuscous dots ; behind which is a pale deeply angulated striga, with a 

 few elongate-triangular ochraceous-brown streaks on its inner edge: the 

 margin is dotted with fuscous ; cilia ochraceous, with darker clouds ; pos- 

 terior wings ochraceous-brown, with the base paler ; an obsolete transverse 

 striga of fuscous spots a little behind the middle, and a darker lunule on the 

 disc towards the base : cilia and abdomen ochraceous. 

 This species resembles the preceding, as CucuUia Scrophularise does C. Ver- 

 basci : it is variable ; some examples being of a darker hue than the one I 

 possess. 



. A comparison of the accompanying figures of this and the preceding insect, 

 executed from fine and perfect specimens in my collection, wiU sufficiently 

 point out their obvious dissimilarity: there is a beautiful pair of each species 

 in the British Museum ; and Mr. Haworth and Mr. Marshall each possess 

 specimens of both insects : it is therefore astonishing that the species should 

 hitherto have remained confounded, when such opportunities were afforded 

 for their elucidation. 

 Caterpillar bright green, with white spots and a broad white dorsal stripe, and 

 a narrow white streak on each side ; head glossy : it feeds on various trees, 

 such as the elm, oak, lime, sloe, &c. : and the imago appears in June. 



