534 BEiTISH LEPIDOPtEtlA. 



p. 109), and figured by Wood (bid. Ent., iv., fig. 6). Stephens 

 described the yellow form of this Anthrocera as having " the anterior 

 wings above of a pale yellowish-green, with six pale lemon-yellow 

 spots ; the posterior wings of the latter colour with a bluish-green 

 border." He further remarks that of this form he has " seen three 

 specimens only, which were reared from larvae taken near Darenth 

 wood, where the wild liquorice abounds." We have in the preceding 

 paragraph noted the variation in the size and development of spot 

 6, which may be totally absent, or form a large well-defined oval spot. 

 We have a specimen taken in 1894, in North Kent, with 4 and 6 

 absent on the left fore-wing, and 2 and 3 rather small. 



Larva. — The larva, in the liybernating stage, rests with its head 

 completely withdrawn ventrally. The dorsal line forms a gradual arch, 

 the ventral area being closely appressed to the surface on which the 

 larva is resting. Dorsally : The body appears to be divided longi- 

 tudinally into three distinct areas, the central area (owing to a slight 

 sinking outside the line of the dorsal warts) appearing much raised 

 above the level of the lateral areas. The colour is of a pale amber, 

 shiny, and almost transparent ; the segmental incisions clearly defined. 

 The mediodorsal area exists as a clear longitudinal band of the ground 

 colour. On either side of this band is a much darker subdorsal band, 

 which contains the dorsal warts. Each of these forms a raised 

 cushion, which bears about ten finely spiculate hairs, each arising from 

 a small black tubercular point. These warts are readily separable 

 into two portions, corresponding with tubercles i and ii respectively. 

 In each portion one hair is central, and is surrounded by four others. 

 The hairs are glassy-looking, covered with fine spiculae or branching 

 points. On the pro- and mesothorax the dorsal warts are united, 

 as they are also on the anal segment. The subdorsal longitudinal 

 bands owe their darker colour to a series of brownish patches, which 

 separate the dorsal cushions on successive segments ; a short, but very 

 black, transverse line edges (on the anterior margin of each segment) 

 the front of each brown patch, which fully occupies the space between 

 the incision and the posterior portion of the wart behind it. There is 

 also a longitudinal supraspiracular band of this darker colour. 

 Laterally : The supraspiracular band is seen to contain the supra- 

 spiracular warts (iii), each of which carries an inner ring of six long 

 spiculate hairs, and a partial outer ring (consisting of three hairs) on 

 the upper edge, which enclose one central hair. Each hair arises from 

 a conspicuous but minute blackish-brown tubercular point. The 

 supraspiracular warts are also found on the thoracic segments. 

 Beneath the spiracles is a longitudinal series of similar subspiracular 

 warts (iv + vj, bearing tuberculate and spiculate hairs, six to eight 

 on each, surrounding a larger central one. The marginal warts (vii) 

 are very similar, but smaller, and run along the base of the prolegs. 

 Between the subspiracular and marginal series are two hair-bearing 

 tubercles, placed close together, on the abdominal (not thoracic) seg- 

 ments ; these represent Dyar's tubercle vi. The prothoracic and 

 abdominal spiracles are black ; each forms a conspicuous protruding 

 cone, which is most prominent when the larva is disturbed. The pro- 

 thoracic spiracle is placed well back on the segment. Ventrally : The 

 head is very pale brown, ocelli black, mouth parts whitish (almost 

 transparent). The ventral area pale amber or yellowish. The true 



