US 



SECOND ANNUAL REPORT OF 



the inner sinuses. The hind wings are of a brilliant steel-blue, with 

 a greenish cast, with a carved row of white lunules and with the 

 hinder border quite undulate and the inner sinuses cream-colored. 

 The under surface of the front wings is more sombre than the upper 

 surface, with the spots near the borders and tne marginal lunules 

 more distinct. The under surface of the hind wings, is on the con- 



[Fig. 80.] 



trary, with the exception of a large almost oval patch at base, of a 

 very brilliant steel blue, with a curved row of seven rounded spots 

 of a deep orange, bordered with black, and the four or five upper 

 ones edged above with white ; there is a small yellow basal spot, 

 about five small whitish spots around the lower borders of the large 

 sombre oval patch, and the marginal lunules are much more distinct 

 than on the upper surface. The male which I illustrate (Fig. 86) dif- 

 fers from the female in the more brilliant hue of the tipper surface, 

 and in either entirely lacking the row of white spots near the hinder 

 border of the front wings, or in having but the faintest trace of them. 

 As these Aristolochia worms are semi-gregarious, and as when 

 young, all the individuals of a batch may be found close together, 

 they are easily destroyed, and those persons who cultivate the Aris- 

 tolochias, need never be troubled with this insect, if they will exam- 

 ine the vines carefully during the first half of July. The worms in- 

 variably produce butterflies during the fall months, and the insect 

 consequently hybernates in the perfect or butterfly state. As the 

 worms feed only on the Aristolochias, scarcely a plant of the kind 

 can be grown without sooner or later being attacked, and the gar- 

 dener should always keep a watchful eye for the worms, about the 

 time indicated. 



