294 THE CANADIAN ENTOMOLOGIST. 



transversely crossed by a more or less prominent series of silvery-white 

 wavy lines, interspacial. Midway between base and apex on costa, is a 

 prominent dash of silver white, repeated directly below in the next 

 subcostal interspace, and half way from this to base is another dash of 

 silvery white. The discoidal space at its outer portion has two patches 

 of silver-white scales, the balance of the space being of the ground 

 colour, with a suggestion of silvery-white, transverse, wavy lines. The 

 interspaces, one-quarter inch within hind margin, bear a white speck, 

 wanting in some specimens, but fairly prominent in others. 



The general marking of under side varies greatly in the eight 

 specimens in my collection. The prominent and most regular markings 

 are the silvery-white space near apex of fore wings, the rust colour of 

 discoidal space (which in some specimens suffuses very generously into 

 adjoining interspaces), the subcostal silvery-white dashes on hind wings, 

 and the silvery-white anal area with the interspacial white dots. 



Taken near Cusilluni in May, 1899, and although one or two 

 specimens have been found in European collections, I believe no 

 description has ever been published. 



Thecla Harriett a, sp. no v. 



Habitat: Bolivia, near Corioco. Expanse, 1.50 inches. 



Head, thorax and abdomen above, dark, covered with green-blue 

 hairs ; below, dark mouse colour. Antennae, black. Legs, dark mouse 

 colour, tarsi having white annulations at base of each joint. 



Fore wings, above, dark lustrous blue. Basal area dusted with 

 greenish blue. Hind margin with a slight fringe of black hairs, and edged 

 with a black thread. A slight suffusion of black extends one eighth inch 

 inwards from hind margin. 



Lower wings, above, dark lustrous blue, matching fore wings. Hind 

 margin, same as on fore wings. At anal angle is an addition to the wing 

 area, one sixteenth inch wide, running from angle to lower submedian 

 nervule (black suffusing somewhat into wing area) and then extending 

 outwards as a tail at nearly right angles to the nervule. This tail is 

 black, one quarter inch long. Across this anal black space is a bluish- 

 white thread, running from end of lower submedian nervule straight to 

 the submedian nervure, then forming a "V" in inner marginal space. 

 At the end of the second submedian nervule is another tail, black, one 

 eighth inch long, being a continuation of the nervule in its direction. 



