Insects. 7763 



disinclined to move : when compelled to do so, it generally drops from its food-plant 

 suspended by a thread. Bests with its claspers firmly attached, but most commonly 

 has the legs free, the body being bent double, and the legs brought almost or quite 

 into contact with the ventral claspers ; sometimes both the anterior and posterior seg- 

 ments are straight, the intervening segments constituting a loop. Head partially con, 

 cealed by the skin of the 2iid segment, rounded ou the crown, of somewhat less 

 diameter than the body, slightly hairy : body obese, short and rugose, the rugosity 

 occasioned by each segment having an elevated transverse skinfold, on which are 

 situated several warts, each wart emitting a slender bristle. The colour is various : 

 the prevailing varieties are — 1st, a pale raw-sienna browu, with three dorsal stripes of 

 a somewhat darker colour, all of them indistinct and the median one very slender : 

 2ndly, a biigliter or burnt-sienna brown, with two broad, dorsal, longitudinal umber- 

 brown stripes, and the faintest possible indication of a slender median stripe: 3rdly, 

 a gray or putty-coloured ground colour, thickly sprinkled with black, and having on 

 each side of each segment an indication of a large crescenlic white mark ; in the last 

 variety the base of the legs is black, and in all the varieties the head is beautifully 

 tessellated, the tessellations in the brown specimens being a darker shade of the same 

 colour, those in the gray specimens being pure black. Feeds on Berberis vulgaris 

 (barberry). For this species I am indebted to Mr. Brown, of Cambridge, who informs 

 me it is double-bruoded, appearing in May and August : the larvae from the second 

 brood are those from which I have taken my description ; they were full fed at the 

 end of September. Cancel description at p. 7361. — Edward Newman. 



Description of the Larva of Cidaria russaia. — Tucks in its head and curls up its 

 anterior extremity into a tight volute when auiioyed or disturbed. Long, cylindrical, 

 the skin loose and much transverrely wrinkled, having a few scattered hairs; the 13th 

 segment has two pointed processes originating below the anal aperture and directed 

 backwards. Head, which is not conspicuously notched and of the same diameter as 

 the body, pale opaque green : body pale yellow-green, without spots or stripes : the 

 pointed anal processes are tipped with rose-colour. Feeds on Crataegus Cvyacantha 

 (whitethorn), in the leaves of which it spins a very slight web, like a few spider's 

 threads, and therein, about the first of August, changes to a delicately green pupa, with 

 an acutely-pointed reddish tail. The pupee, like the larvae, have a few short scattered 

 hairs, especially about the anal extremity. I am indebted to Mr. Thomas Huckelt 

 for both larvae and pupae. It is difficult to give a time for the appearance in the moth 

 state of this common insect. I have found it more plentiful and in finer condition in 

 September than in any other month, but there is scarcely a week during the summer 

 months in which it does not occasionally occur. — Id. 



Description of the Larva of Cidaria silaceala. — Eests generally in a straight posi- 

 tion, except that the feet are occasionally attached to the stem of the food-plant, and 

 then the anterior part of the body — that is, the head, together with the 2nd, 3rd and 

 4th segments — bent at a right angle with the remainder of the body, the 3rd pair of 

 legs forming the apex of the angle ; when disturbed the legs are detached from the 

 food, and the body bends and oscillates backwards and forwards as long as the dis- 

 turbance continues. Head flattened, porrected, of equal diameter with the body: 

 body long, slender, uniformly cylindrical, without tubercles, having distributed very 

 sparingly over its surface short scattered hairs, very slender and inconspicuous except 

 under a lens. Head pale whitish green, the face variously marked with clear brown, 

 which colour is sometimes confined to the sides, sometimes pervades nearly the whole 



