ANNETTE F. BRAUN. 289 



Litliocolletis caryrcalbella Chambers. 



Plate XXI, Fig. 17. 

 Lithocolletis caryxalbella Chambers, Can. Ent., iii, 58, 85, 182, 206, 1871. Dyar, 



Bull. 52, U. S. Nat. Mus., 1902, No. 6261. 

 Syn. caryalbella Walsingham, Ins. Life, iii, 328, 1891. 



"Head, palpi, tuft, antennae and thorax silvery white; basal portion of the 

 wing (within the costal and dorsal streaks) silvery white, with a wide pale golden 

 basal streak along the costal margin from the base to the first costal streak. The 

 basal white portion in some lights suffused with pale golded. Apical two-thirds 

 or more of the wings pale golden, with four silvery costal and two dorsal silvery 

 streaks, all dark margined internally. The first dorsal large, oblique, opposite 

 the first costal, which is smaller; their dark margins uniting at an acute angle 

 on the fold, the streaks themselves being scarcely confluent. Second dorsal 

 opposite to and larger than the second costal ; its dark margin wide. Third and 

 fourth costal streaks small. Apical spot small, black ; hinder marginal line at 

 the base of the cilia brown. Cilia pale, fulvous. Alar expanse one-fourth inch. 

 Larva unknown. Mines the under surface of the leaves of hickory trees (Carya 

 alba}. Mine ovoid, tent-like. The parenchyma is eaten off of the upper cuticle 

 in a ring, leaving a green spot in the centre, which is then eaten off. The pupa 

 is contained in an oval cocoon made of frass. Imago in July rare." 



The above, which is Chambers' description, is accurate in all 

 details, except that, as shown by Chambers' types, the dark mar- 

 gins of the first pair of streaks do not unite, but are narrowly sepa- 

 rated by the pale golden ground color of the wing. Kentucky and 

 Wisconsin (Chambers). 



Lithocolletis olivseformis sp. nov. 

 Plate XXI, Fig. 18. 



Antennae white, grayish toward the tips. Face, palpi, tuft and thorax pure 

 snow-white. 



Forewings pale brownish ocherous, with a median white basal streak dark 

 margined toward the costa, and four costal and two dorsal white streaks, all dark 

 margined internally. The dorsal margin is also whitish toward the base. The 

 first dorsal streak placed somewhat nearer the base than the first costal, has its 

 dark margin bent backward on the fold for a short distance, then continued 

 obliquely upward. The second dorsal streak rather large and triangular, has its 

 apex directed toward the space between the second and third costal streaks. A 

 small black apical spot. A brown marginal line in the cilia, which are whitish 

 ocherous. Alar expanse 6.5 mm. 



Hind wings, cilia and abdomen pale grayish ocherous. Legs whitish ocherous, 

 tarsi unspotted. 



Type. Female, No. 12008, U. 8. N. M. 



This species, bred from Carya olivceformis Nutt., is very distinct 

 from carycealbella Cham. The type at the National Museum bears 

 the following labels: 811, Carya oliv. Pupa 6-VI. 



This species may be distinguished by the irregular anterior mar- 

 gin of the first dorsal streak. 



TBANB. AM. ENT. 8OC. XXXIV, (37) OCTOBER, 1908. 



