216 PAPERS BY DR. B. CLEMENS. 



The species of this genus are elegant in form and often 

 gaily coloured or prettily mottled. The position of the 

 imago at rest is extremely characteristic, but not peculiar 

 to it. The front of the body is elevated by the fore-legs 

 being held vertically, so that the tips of the wings touch the 

 surface on which the insect rests. The imago appears to be 

 about to poise itself on its wing-tips, or to have raised its head 

 into a position of profound attention. The larvae have only 

 fourteen feet; when young they mine the leaves, but at a 

 later period of growth many of the species construct cones, by 

 rolling up a portion of the leaf. They devour the inner 

 portion of the cone, which thus becomes discoloured and 

 easily observed. 



The description of the species below was made originally 

 from a poor specimen,* and I therefore take this opportunity 

 to amend it from a perfect specimen, which I mistook at first 

 for a distinct species. 



G. venustella. Proc. Ac. Nat. Sci., January, 1860, p. 6. 

 Fore-wings dark fuscous, with four equidistant costal streaks ;f 

 the first, near the base of the wing, quite short; the second 

 extended obliquely across, or nearly across, the wing, and 

 constricted or partially interrupted near the middle; the 

 third likewise oblique, but narrower than the second, ex- 

 tended to the middle of the wing; the fourth, near the tip of 

 the wing, slender, curved, nearly vertical to the costa and all 

 dark-margined internally. The basal portion of the inner 

 margin is white. Cilia dark fuscous, at the tip of the wings 

 white, touched with black at their ends, and having a few, 

 black-tipped scales in the middle of the white spot. Hind- 

 wings dark fuscous, cilia the same. 



Antennae fuscous. Head and face white. Labial palpi 

 white, the 2nd joint fuscous at its end and the third with a 

 broad fuscous ring, leaving the extreme tip white. 



Taken on wing the 25th of July. 



* See ante, p. 92. H. T. S. 



f Dr. Clemens has omitted here the colour of these streaks, but at p. 92 

 they are described as white. H. T. S. 



