Appendix Entomology of the Rose. 361 



body there is a broad dark band across the wing transversely, and about the centre of the 

 wing there is another broad oblique line of the same colour running transversely, and at 

 the upper corner there is also a dark triangular patch. The under wings are plain smoky 

 brown, with the fringe of a paler colour. Head and thorax brown, body smoky. The cater- 

 pillar is pale green, sometimes dull, sometimes bright. Body slightly covered with small 

 whitish hairs. The head is shiny, of a pale dingy green colour. When full fed it is about 

 three-quarters of an inch in length. A thin dark line runs down the back, and the joints 

 of the segments are clearly visible by the presence of thin white lines, which show at each 

 movement of the insect. It is very agile in its movements. It spins together two leaves, 

 one of which it often severs from the stem : and this dying, it appears as if the larva took 

 up its abode in a dead leaf. When disturbed it wriggles actively, and drops from either end 

 of its dwelling suspended by a thread. It spins a slight web in which to change to a chrysalis. 

 The latter at first is greenish brown, but changes to a more uniform brown. The caterpillar 

 is common throughout May and the early part of June ; the moth at the end of June and 

 during July. 



The next species, Tortrix ribeana, very nearly resembles the preceding insect in many 

 points. In size it is the same, but in colour much darker. The upper wings here are also 

 delicately reticulated with darker lines, but the broad dark band at the juncture of the wings 

 with the body is entirely wanting. The oblique central band is also neither so complete or 

 conspicuous, and there is a very slight trace only of the triangular patch at the upper corner 

 of the wing. The hind wings are smoky brown, with fringe of a paler colour. Head, thorax, 

 and body dark brown. The habits of the caterpillar of this species exactly resemble those of 

 the one last described ; the points of distinction firstly, in the colour, which is darker in T. 

 ribeana than in T. pyrastrana, being in fact dull pale olive green : secondly, in the head, 

 which is black instead of green (there is also a black plate on the second segment) : and thirdly, 

 in the size, the larva of the former being larger than that of the latter. This is a very common 

 and troublesome species ; it is equally abundant on Roses both out of doors and under glass, 

 and is prevalent during a long time. Specimens were feeding with us from April 2nd to May 

 19th, and on the latter day we observed several young specimens out of doors. It seems very 

 fond of rolling the leaf. When full fed it changes to a dark brown chrysalis, much darker in 

 colour than the chrysalis of T. pyrastrana. 



Poronea variegana, the next on our list, is not so common (at least in this locality), and 

 therefore not so injurious as either of the two species last described. The moth has the upper 

 wings nearly equally transversely divided into two parts ; that including the junction with the 

 body varying in different specimens from pure satiny white to cream colour ; and the outer half 

 brown, with a few indistinct markings of a paler colour. It is to be remarked that a great 

 difference in colour exists in different specimens, especially with regard to the extent and 

 purity of the white portion of the wing ; but where the white is pure and conspicuous it is a 

 charming little object. When it first emecges from the chrysalis the wings are ornamented 

 with a number of small excrescences or coruscations. The under wings are pale smoke colour, 

 with a fringe of a paler hue. The caterpillar is about three-quarters of an inch long when full 

 fed, somewhat slender and very active. In colour it varies from dull pale green to bright apple 

 green ; it is furnished with a few whitish hairs. The head is shining brown or black. It rolls 

 up the edge of a leaf, and spinning a web lives therein, devouring that part of its home which 

 is nearest at hand. Although not so common as some others, it is nevertheless capable of 

 inflicting considerable damage upon Roses, and from its extreme activity is difficult to capture. 

 When disturbed it drops from its home and lets itself down to the earth by a silken thread 

 proceeding from its mouth, and once on the ground it is very swift in its motions. The cater- 

 pillar appears during June and July, the moth in July and August. 



