578 THE BUTTERFLIES OF NEW ENGLAND. 



it. The female in moving makes a quick start forward for a few steps, 

 then the male does the same, and here, with wings erect, he keeps up a 

 slight quivering agitation of the wings until his consort departs, when in 

 an instant the pursuit is renew^ed. 



When it alights in the road, it rests with wings fully, flatly expanded. 

 Geddes states that he observed it in the mountains of the Canadian north 

 west alight on the upright trunks of trees, head downward. An im- 

 prisoned specimen resting for the night on a vertical surface took the 

 opposite position, with the trunk somewhat oblique, the wings closely 

 shut, the front Avings tucked well between the hind pair, the abdomen 

 drooping between them, and the antennae, divaricating about 100°, on a 

 line with the upper plane of the thorax. 



Desiderata. The early history of this species is almost wholly unknown, 

 the different stages of the caterpillar and the chrysalis never having been 

 adequately described. The flight and postures of the butterfly, though 

 undoubtedly differing somewhat from those of the other species, are 

 not fully described ; and it remains without explanation why so long a 

 period elapses between the first appearance of the imago and oviposition. 

 For how long a time are males only on the wing ? 



LIST OF ILLUSTBATJONS.—ABGYNNIS ATLANTIS. 



General. Imago. 



PL 21, fig. 7. Distribution in North America. pj. 4^ flg. g. ]yj;.,]e, both surfaces. 



Effff- 33:36. Male abdominal appendages. 



P1.64, fig. 22. Colored. 39:6. Neuration. 



67:13. Micropyle. 46:14. Androconium. 

 Chrysalis. 

 PI. 84, fig. 6. Side view. 



BRENTHIS HUBNER. 



SMALLER FRITILLARIES. 



BrentbisHiibn., Verz. bek. scbmett., 30 (1S16). Argynnis (pars) Auct. 



Tijpe.—Papiliohecate Wien. Vers. 



Da jagte jenseits grad' am bunten Strande 

 Klotiida sich mit einem Scbmetterling. 

 Wohl mocbte jetzt das zarte Kind nicbt meinen, 

 Als sie ibn fing, sie fange zwei fiir einen? 



ScHULZE.— Die bezauberte Hose. 



Imago (54 : 1). Head large, abundantly clothed withlong, erect hairs, longest near 

 the antennae. Front moderately full, most so in the middle, but scarcely surpassing 

 the front of the eyes, least full above; much broader than high, but narrowing infe- 

 riorly, just above the middle as broad as the eyes ; upper margin projecting broadly 

 between the eyes, the sides of the projection curving around the antennae, but scarcely 

 descending; lower border well rounded. Vertex large, tumid, but not greatly elevated, 

 twice as broad as long, the posterior border broadly rounded, and in the middle 

 squarely docked, the anterior border descending abruptly. Eyes rather large, quite full, 

 naked. Antennae inserted just in advance of the middle of the front, in rather large 

 pits, connected by a rather broad and deep transverse channel, but separated by 



