. 



44 ENTOMOLOGICAL SOCIETY 



The larvae web up the three leaflets at the end of a leaf and 

 form a mine in the stem where they are attached, or web up 

 a little leaf and burrow in the young wood. They occur only 

 in the young, unfolding leaves. The larva is cinereous green, 

 the head, cervical shield, and thoracic feet shining black ; anal 

 plate brown. The body tapers abruptly at both ends. Tu- 

 bercles small, brown, the hairs long, black; thoracic segments 

 with three annulets, abdominal ones with two, the tubercles 

 normal, iv and v closely approximate, i and ii nearly in line. 



Acrobasis caryivorella Ragonot. 



I refer to this species a male and a female from the Texas 

 Agricultural and Mechanical College Insectary, July 12 and 

 20, 1903 (A. C. 225) ; a female, Burnet Co., Tex. (F. G. 

 Schaupp through W. D. Kearfott), and two males, East River, 

 Conn., August 8, 1906, and September 2, 1907 (Chas. R. Ely). 



Acrobasis hebescella Hulst. 



Six specimens from Brownwood, Tex., bred at the Insectary 

 of the U. S. Department of Agriculture from larvae on pecan 

 mining into the young buds ; one specimen, East River, Conn., 

 August 2, 1906 (Chas. R. Ely). The species is very close to 

 caryivorella Rag., but differs in the obsolescence of the outer 

 line, all the space beyond the scale ridge being nearly uniformly 

 cinereous. 



Acrobasis evanescentella, n. sp. 



Entirely similar to A. caryivorella Ragonot, somewhat darker in 

 color. The specific difference lies in the sex-mark of the male, 

 which is pale gray, overlaid by gray scales, not deep black and dis- 

 tinct as in caryivorella; the mark is also narower. 



Twelve specimens, Orlando, Fla., bred from larvae on pecan 

 by a correspondent of the U. S. Department of Agriculture; 

 breeding No., Chittenden, 250. 



Type. No. 11981, U. S. National Museum. Seven of the 

 types deposited in the National Museum, the rest with Doctor 

 Chittenden. 



Acrobasis kearfottella Dyar. 



Besides the types, I have seen a specimen from New 

 Brighton, Pa., now in the collection of Mr. F. A. Merrick, to 

 whom I returned it. The species is larger and stouter than 

 the following, though in general similar. 



Acrobasis palliolella Ragonot. 



Ragonot and Hulst place albocapitella Hulst in the synonymy 

 of this species, correctly, I presume, though I have seen neither 



