margin, is an irregular quadrate dark fuscous 

 spot, confluent with the carpus ; the ferruginous 

 margin of the superior wing, is paler towards the 

 base : posfpedus, and intermediate and posterior 

 feet^ pale greenish-yellow, the front of the former 

 dusky: tergiim pale reddish-fulvous, incisures, 

 and vertebral line, blackish : venter pale yellow. 



OBSERVATIONS. 



The annexed figure is taken from the only 

 specimen I have seen. It alighted on the apron 

 of a gig, near this city, and was carefully secured 

 by Mr. James P. Parke, who kindly presented it 

 to me. it remained lively and active for several 

 days in a glass vessel on my table, and I was 

 frequently amused by its dexterity in catching 

 the flies which were introduced for its nourish- 

 ment. It moved very slowly and cautiously 

 towards its victim, and when at the proper dis- 

 tance, the fore-feet were thrown forwards, and 

 again retracted, with a rapidity of motion, that 

 the eye could not follow, bringing the fly with 

 them to the mouth. These feet are used almost 

 exclusively as arms and hands, turning the food 

 offered to the mouth, in various positions for the 

 convenience of mastication ; they are rarely used 



PLATE XXV. 



