the Life History of Agriades ther sites. 297 



where they are somewhat fuscous, the hair-bases are black on some 

 of them, some appear to be white or the effect is of the short white 

 hairs, which are very noticeable on lower parts of slope and on last 

 four segments; head black, legs pale with black marginal line to 

 joints. The upholstered hollows are without the raised flat margin 

 seen when quite full grown. 



When first moulted to last skin the white hairs are massed 

 together and have a very brilliant silvery look, at first all 

 are very white, but after, say, twenty-four hours, those 

 on thorax are shaded with fuscous. 



In some specimens the prothoracic plate looks dark, but 

 this is due to dark hair-bases. 



Side by side the green colour is very similar to that of 

 icarus, but in icarus is slightly paler and yellower. 



Jan. 24. Full grown. 



Length 11-5 mm. when contracted, 4 mm. high, 5 mm. broad, 

 rather dark bluish green, with faint suggestion of yellow sunk in 

 dorsal ridges and more distinct very narrow lateral line yellow, 

 but so sunk as to be almost greenish. Mesothorax projects hood- 

 like over prothorax (when contracted), with 7 following segments 

 it forms the 8 dorsal humps (as seen laterally), seen endwise the 

 dorsal furrow is shallow, but hairs make the ridges look higher and 

 the furrow consequently deeper than it is. On each segment to 

 6th abl. the " slope " has a raised centre from dorsal ridge to below 

 spiracle, in this are three depressions, an upper, a middle (rather 

 behind them) and a lower, in which is the spiracle. The depressions 

 (" upholstered " hollows) are connected together sufficiently to give 

 the raised area rather the appearance of a marginal cincture. This 

 condition is often exaggerated when the larva is quite mature 

 (PI. XXXII, figs. 7, 8.) The honey-gland is an obscure narrow line, 

 the positions of fans obvious, spiracles hardly different from ground- 

 colour, white of hairs less brilliant than before being full fed. 



In the last skin some specimens as they get full grown 

 show a slight rufous tint on the white hairs and specimens 

 differ a good deal in the visibility of the yellow dorsal and 

 lateral bands. In the last skin, they are fond of eating 

 the petioles of the leaves. 



The feature of the larva in the last instar is the white or 

 silvery haze round it and over it from the whiteness of the 

 hairs, which remains so till the larva is quite half grown 

 in this instar, when growth separates the hairs and 

 diminishes the effect, and as it gets full grown, the hairs 



