MAY, 1860. 123 



joint, which is slender, smooth and pointed. Maxillary palpi 

 none. Antennae inserted on the front, basal joint smooth and 

 subclavate, slightly denticulated beneath and microscopically 

 pubescent (in the $ alone ?). Tongue scaled at the base and 

 somewhat longer than the anterior coxse. 



This insect, I think, must approach very nearly (Ecophora 

 of Zeller, if it is not, indeed, a member of that genus. 



C. argenticinctella. Head, face and thorax deep reddish- 

 orange. Labial palpi, middle joint dark brown, terminal 

 white, with a broad dark-brown ring on its middle. Antennas 

 silvery-white, annulated with blackish. Fore-wings yellowish- 

 orange. Along the basal margin of the wing, from the fold 

 to the basal angle, is a silvery line black-margined on both 

 sides, and one from the basal third of the inner margin, some- 

 what curved and not extended to the costa, likewise silvery 

 and black-margined on both sides ; the basal portion of the 

 wing included between these lines is deep reddish-orange. 

 Near the apical third of the wing is a silvery costal streak, 

 curved and tapering outwardly, slightly dark-margined on 

 the costa behind. Opposite this on the inner margin is a 

 semicircular silvery line, black-margined on both sides at its 

 beginning, which terminates in a dark-brown spot, white- 

 margined exteriorly at the commencement of the cilia, before 

 which the line becomes grayish-silvery. The portion of the 

 wing included within this line is deep reddish-orange, as well 

 as the apical portion, in which along the hind margin is a 

 row of silvery spots, each slightly dark-margined. Hind-wings 

 fuscous. Feet annulated with white. 



Fore-wings rather narrowly ovate-lanceolate, discoidal cell 

 very narrow, long and unclosed, with two independent discal 

 nervules to the hinder margin beneath the tip. The costal 

 nervure is short. The subcostal nearly straight, sending 



* Subsequently (August, 1860, see p. 158), Dr. Clemens proposed to substi- 

 tute for this name (already in use to designate a genus of bees), the name 

 CHRYSOPOKA. H. T. S. 



