16 



mand over them which it hns now lost. The receding skin is 

 transparent and loosened, especially from the extremities. In 

 six or seven minutes more of arduous labor— of swelling and 

 contracting— with an occasional brief respite, the antenna; and 

 the four front legs are freed, and the fulled and crimped wings 

 extricated. The soit front legs rapidly stiffen, and, holding to 

 its support as well as may be with these, the nascent locust 

 emplo3"s whatever muscular force it is capable of to draw out 

 the end of the abdomen and its long hind legs (Fig. 5, c). This 



Fig. 5. — Caloptenus spretus; pioe^-ss of ac^juirin;;- \\¡ni;s; a, pupa w 

 just split on tlie back; /;, Uie imago extending; c^ tlie imago nearly out: 

 imago wiih wings expanded; c, the imago with all parts perfect, natur 

 'After Rilcv). 



111 slvin 



ci, the 



al size. 



in a few more minutes it linally does and ^vith gait as unstead}' 

 as that of a new-dropped colt, it turns round and clambers up 

 the side of the shrunken, cast-off skin, and there rests while 

 the wings expand and ever}^ part of the body hardens and 

 gains strength — the crooked limbs straightening and the 

 wings unfolding and expanding like the petals of some pale 

 flower. The front wings are first rolled longitudinally to a 

 point, and as they expand and unroll, the hind wings, which are 

 tucked and gathered along the veins, at first curl over them. 

 In ten or fifteen minutes from the time of extrication these 

 wings are fully expanded and hang down like dampened rags 

 (Fig. 5. (/). From this point on, the broad hind wings begin to 

 ibid up like fans beneath the narrower front ones, and in 

 another ten minutes they have assumed the normal attitude of 

 rest. MeanAvhile the pale colors which always belong to the 



