28 LLOYD'S NATURAL HISTORY. 



Hesperia sylvanus^ Latreille, Enc. Method, ix. p. 770, no. 117 

 (1823); Newman, Brit. Butterflies, p. 172 (1881); Lang, 

 Butterflies Eur. p. 352, pi. 82, fig. i (1884); Barrett, 

 Lepid. Brit. Isl. i. p. 294, pi. 39, figs, i, 1^-^(1893). 

 Pamphila sylvanus, Stephens, 111. Brit. Ent. Haust. i. p. 101 

 (1828); Kirby, Eur. Butterflies and Moths, p. 65, pi. 15, 

 fig. 13 (1879); Buckler, Larvae of Brit. Lepid. i. pp. 141, 

 196, pi. 17, fig. 4(1886). 



This species, which is of about the same size as Erynnis 

 comma, is greenish-brown, with large fulvous markings. On 

 the fore-wings this colour is much extended, the greater part 

 of the cell, and the portion of the wing above and below 

 being fulvous, clouded with brown at the base, and (in the 

 male) separated by an oblique black streak of raised scales 

 running up to the outer part of the cell from an oblique band 

 on the disc. This, beyond the cell, turns inwards along the 

 costa, where it is cut by the nervures. In the female the black 

 bar is absent, but the fulvous band on the disc is continued 

 upwards, being separated from the costa by a broad brown 

 curved band running from the costa round the end of the cell, 

 but not continued further. On the hind-wings the centre is 

 fulvous, clouded with brown at the end of the cell, and all the 

 borders are broadly brown. The under side is greenish ; the 

 hind-wings are tinged with tawny at the anal angle, and there 

 are several indistinct pale yellowish spots scattered over the 

 wings. 



The larva is dull green, with a dark dorsal line, and dotted 

 with black. There are snow-white transverse spots on the 

 tenth and eleventh segments beneath. The head is brown. It 

 feeds on various grasses, especially Holcus lanatus and Triti 

 cum repens in April, the Butterfly, which is double-brooded, ap- 

 pearing from May to August. The pupa is long, and pale brown, 

 formed among grass-blades folded together, and lined with sill:. 



