LYCAENIXAE: THECLA EDWARDSII. 897 



that t^omc ciiijs dei)0!?ited in confinoiucnt liatcliod latu in the same season. 

 I tliink this must bo exceptional. l>ut. if not, then the insect nni8t winter 

 as a young hirva. The caterpiUar Iieconics full grown in .June and the 

 chrysalis may be looked for from flio middle of June to the middle of July ; 

 its duration is unknown. 



Flight and attitudes. It is an exceedingly lively insect, and it is diffi- 

 cult to follo\y one in its rapid, changeable flight. It is very ])ugnacious, 

 one seldom stirring out without meeting and having a tusscl with a fellow ; 

 it will dash out at every passing grasshopper. The male far exceeds the 

 female in activity. When alighted the wings are held erect, the under 

 pair covering half the lower median intersi)ace of the fore wings ; the 

 antennae, curving forward at the extreme base, are straight, raised at 

 about an angle of 20° \vitli tiic body and divaricate about 80°. AYhcn not 

 80 alert, in the shade, the antennae may divaricate as much as 100° and 

 be dropped to the same plane as the body. In walking on a perpendicu- 

 lar surface, it uses all six legs, but when it stops it withdraws to the 

 breast one or both the fore legs. I have only once or twice seen them rub 

 their hind wings, and it then appeared as if both hind wings were moved 

 toijcthcr over the ftire winsrs, and not alternately. 



Parasites. Mr. William Saunders found some chrysalids of this butter- 

 fly which he reai-ed infested by Tetrastichus saundersii, which hibernated 

 in the chrysalis case and made its appearance after the butterflies of the 

 following year were upon the wing. 



Desiderata. Our fii-st object must lie to raise this insect in order to 

 prove that the supposed earlier stages are really its own, and to secure full 

 descriptions of the earlier stages of the caterpillar; our next to determine 

 in what stage it passes the winter. Notes upon the southern and north- 

 western distribution of the butterfly are also desirable. Does its pai-asite 

 attack other caterpillars? If not, and, as appears from above, it escapes 

 from the chrysalis only after the next season's caterpillars are gone, what 

 does it do with itself till they come again ? 



LIST OF ILLUSTliATIOXS.-rHECLA EDWABDSII. 



General. Imago. 

 PI. 24, li;;. 3. Distribution ill Xurtb America. PI. 6, fig. IG. Male, botli surfaces. 



£nn. 34:14. Male abdominal appendages. 



PI. 6.5, fig. 2. Plain. 89:"- N''"tation. 



68:2. Micropvle. ^^^^O. Androconiuin. 



Z . ... 54 : 8. Side view of head and appendages 



Caterpillar. , , .,,.., < », . . . 



„ , „. T, , . enlarged, witb details of the structure of 



PI. 75, fig. 2.5. Dorsal view. ., , 



' ^ the legs. 

 Chrysalis. 



PI. 84, fig. 29. Side view. 



"3 



