902 THE BUTTERFLIES OF NEW ENGLAND. 



a part of the abdomen, but generally collects as a shrivelled lunn) at the 

 tail. At the close, the girth is found passing over the second abdominal 

 segment. 



Life history. The butterfly generally appears about the 10-15 July, 

 altliDUgli it sometimes occurs as early as the very end of June ; it remains 

 upon the wing until the end of the first week in August — perhaps longer ; 

 the eggs are doubtless laid during the last of July and remain unhatched 

 until spring ; the caterpillars become fully grown in the latter part of 

 June, and according to Mr. Saunders remain eight or nine days in chrysa- 

 lis ; my own observations upon this point were not so carefully noted as 

 they should have been, but I tiiink specimens received from Mr. Saunders 

 remained nearly fourteen days in the pupa. 



Desiderata. The distribution of this butterfly needs particular attention ; 

 the time and place of the deposition, the season of hatching of the eggs 

 and the duration of the chrysalis state are points which need investigation. 

 We require also a description of the earlier stages of the larva and notices 

 of the flight, habits and posture of the butterfly. No parasites are known. 

 Has the larva any other food than willow ? 



LIST OF ILLUSTRATIONS.— THECLA ACADICA. 



General. Chrysalis. 



PI. 24, fig. 4. Distribution iu North America. PI. 84, flg. 35. Side view. 



Effff. ^_ ^ Imago. 



PI. 65, fig. I. Side view. 



PI. 6, fig. 13. Male, both surfaces. 



34 : 16. Male abdominal appendages. 

 Caterpillar. i6:21. Androcoiiiura. 



PI. 75, fig. 10, 17. Dorsal views. 



18. Partly dorsal, partly lateral view. 

 79 : 25. Front view of head, stage v. 



TRIBE LYCAENIDI. 



BLUES. 



PajMliones polyophthahni Wieu. Verz. Lycaenides Kirb. ; Lycacninac (pars) Butl. ; 



Cives (pars) Herbst. Lycaenidae(pars) Guen6e. 



Adoleseentes Hubner. Ciipididi Scudder. 



Hued like a rainbow, sparkling as a dewdrop, 

 Glittering as gold, and lively as a swallow. 

 Each left his grave shroud,"and iu rapture winged him 

 Up to the heavens. 



Anon. 

 Frail feeble sprites I — the children of a dream! 



Like motes dependent on the sunny beam, 



Living but in the sun's indulgent ken. 



And when that light withdraws, withdrawing then. 



Hoon. — Plea oj the Midsummer Fairies. 



Imago. Colors above principally violet ; club of antennae usually equal throughout 

 most of its extent, long and slender, being about three times as broad as the stalk and 

 from four to five times longer than broad. Patagia long and slender, usually about 

 two and a half times longer than broad; subcostal nervure of fore wings with three 



