CUPIDO MINIMUS. 123 



just above and in front of the spiracle. The subspiracular group (three 

 hairs in first instar) has six hairs, two longer, about 0*1 5mm. The 

 marginal series three longer (O'lOrnm.), and two or three shorter, with 

 a minute lenticle or two. The prothoracic plate is larger, and varies a 

 little as to hairs ; in one specimen it has only one pair of hairs ; there 

 are about 28 other hairs on either side of the prothorax. The hairs 

 round the margin of the 8th, 9th, and 10th abdominals are long and 

 numerous, not distinguishable, for counting, from those rather more 

 dorsal. The spiracular lenticles become large and conspicuous on the 

 7th and 8th abdominal segments. The gland of the 7th segment is 

 quite obvious (wanting in lirst instar), but the processes (or caruncles) of 

 tbe 8th are not seen, but, in some specimens, there is here a slight 

 crowding of skin-points. Each pad of prolegs possesses three hooks, 

 three large, or two large and one small, sometimes, however, only two, 

 both large. The special corner hair of the prothoracic plate is about 

 O'lram. long. The skin-points are as numerous as in first instar, but 

 are now obviously conically or pyramidally pointed. The hairs are 

 more easily seen to be spiculate, and the hair- bases and lenticles show 

 some stellate structure. On the anterior segments, here and there a 

 hair-base has a raised point or two, but on the posterior segments all 

 the larger hair- bases have a number of upstanding points irregularly 

 placed, but tending to form a ring about half-way up. The lenticles 

 which generally have a cylindrical form, have the margin with one or 

 more points, rarely sharp. There are three or four lenticles close to 

 the gland on the 7th abdominal segment, remarkable because dorsal 

 lenticles are rare elsewhere. Third instar (July 6th, St. Jean-de-Luz): 

 Length 5*5mm. At first glance one would say a white larva with 

 ochreous (brownish, terra-cotta) markings. More correctly the larva 

 is brownish-ochreous, with lines of dorsal flange and two oblique lines 

 below nearly white. These are so broad that, except the median dorsal 

 line, they absorb nearly the whole larva, as seen from above. There 

 is a broad band of ground colour along the (black) spiracles, with 

 white lateral flange line below. The larva is too rounded for the 

 flange to be more than a name from analogy with other Lycaenid larvae. 

 It is uniformly studded with very short, dark (black or deep brown) 

 hairs ; head black. A few dorsal and lateral flange hairs are longer 

 than the others. There is a distinct depression at the prothoracic plate, 

 and the prothorax often looks very dark, from head shining through. 

 In the third instar the head is about 0-66mm. across. The prothoracic 

 plate is about 0*38mm. from angle to angle ; the special angular hair 

 has a rather elaborate base; the plate carries about fourteen hairs, and 

 several lenticles on each side, and is covered with fine skin-points. 

 The central area, without hairs, is very narrow in front, but wider 

 (about O'lmm.) behind. The rest of the segment carries about 50 to 

 60 hairs above spiracles on either side. The 1st abdominal segment 

 (as an example) has about 140 to 150 hairs from spiracle to spiracle. 

 The longest hairs dorsally and laterally are about0-15mm. long, the mass 

 about - 06mm. ; these have rather long, very fine, spicules. The 

 bases of hairs carry four or five strong sharp spines or spicules at 

 about half their height. In the neighbourhood of the gland in the 7th 

 abdominal, as well as an additional number of lenticles, are numerous 

 hairs remarkably modified. The hairs are no longer than their bases, 

 and are enlarged upwards, so as to leave bulbous rounded ends, set 



