1 28 PAPERS BY DE. B. CLEMENS. 



Head smooth, covered thickly with decumbent scales. 

 Forehead broad, almost spherical; face rather narrow be- 

 neath. Ocelli none. Eyes rounded, moderately prominent. 

 Labial palpi, second joint thick, with a very abundant tuft 

 of hairs beneath prolonged in front ; third joint smooth, 

 slender and pointed, as long as the second. Maxillary palpi 

 short and distinct. A ntenna3 simple, scarcely more than 

 one-half so long as the anterior wings, slightly denticulated, 

 basal joint smooth. Tongue scaled at the base, about as long 

 as the labial palpi. 



I have three specimens of the insect belonging to this 

 genus, but none of them show the peculiar structure of the 

 palpi of the European male.* Whether mine are all females, 

 or whether the individuals are generically distinct from the 

 European, as the detail of some parts of their structure seems 

 to indicate, must be left for future determination. 



A. ? pruniella.* Head and face pale gray ; thorax dark 

 gray. Labial palpi dark fuscous externally, and pale gray 

 at the end ; terminal joint gray, dusted with dark fuscous. 

 Antennae grayish, annulated with dark brown. Fore-wings 

 gray, dusted with blackish-brown, with a few blackish- 

 brown spots along the costa, the largest in the middle, and 

 short blackish-brown streaks on the median nervure, sub- 

 costal, in the fold, and one or two at the tip of the wing; cilia 

 fuscous-gray. Hind-wings fuscous-gray; cilia gray, tinted 

 with yellowish. 



The larva was taken June 16th, full grown and about to 

 transform on the limbs of the plum. Its head is black, body 

 uniform reddish-brown, with indistinct papula, each giving 

 rise to a hair, and with pale-brown patches on the sides of 

 the 3rd and 4th segments ; shield and terminal prolegs black. 

 One specimen had secreted itself under a turned-up portion 

 of the old bark of the trunk. The cocoon is exceedingly 

 slight, and the tail of the pupa is attached to a little button 



See ante, p. 36. H. T. S. 



