:!:{() WILLIAM T. M. FOKBES 



Larva densely liairy. Platyptilia-like, in berries of Crala-gus. The pupa hiber- 

 nates and the moth emerges in the spring. 

 Kentucky. New York: Ithaca (Wellhouse). 



13. HATRACHEDRA Stainton. 



Fore wing typically almost linear (h'g. 18(i) ; but lanceolate in some of our 

 species; palpi long, second and third segments equal; no pecten (except in some 

 aberrant species) ; fore wing with cell oblique in wing, at its outer end separated 

 from dorsal margin by only half its width, the end perpendicular; R 4 and R 5 com- 

 pletely fused. M! typically stalked with them, free in B. placeiidiella. One medial 

 lost, Cu, and Cu. typically connate, and sharply divergent, Cu 2 running directly 

 across to inner margin; M n closely approximate or connate, and much longer. (In 

 B. trichella Cu 2 is well back from the end of the cell, and M 2 , M ;1 , and Cu, arc 

 longitudinal, parallel, and more nearly equal than usual. M, is long-stalked.) 

 Hind wing in B. placeiidiella as in Blastodacna ; in the others linear, with reduced 

 venation. Larvae variable in habits, frequently scavengers. Epiphysis of fore 

 tibia, in the typical group very small, at middle of tibia, and strongly prominent; 

 more normal in B. placeiidiella. 



The genus is heterogeneous and of doubtful relationship; it is sometimes 

 associated with the Coleophorida>. B. placendiella- is clearly related to the Laver- 

 nidae, but may not be very close to the other species. 



I. Winffs lanceolate; M, free, M, lost; epiphysis normal; pec-ten- stro-ng; anteiuuc 



with raised whorls of scales; palpi not strongly divergent; oripositor exseried. 



1. B. placendiella Busck. Palpi blackish fuscous, third segment with an ochreous 

 annulation at base, and extreme tip ochreons. Antennae dark fuscous with narrow 

 black annulations. Thorax dark fuscous; head light and iridescent; fore wing black- 

 ish fuscous, nearly evenly powdered with pale; without a pale central stripe; small 

 black tufts in fold at middle, on inner margin at three-fourths way to apex, and 

 at end of cell; a black terminal line around apex, fringes light with a black line 

 in them. Abdomen concolorous, with yellow tip. 11 mm. 



June. 



Western Pennsylvania. 



II. Fore wing lanceolate (fig. 190) with M t apparently stalked, M._, present, M 3 and 



Cu t longitudinal; hind wing linear icith croirded venation; maxillary palpi 

 turned l-aterally ; antenna^ smooth, scape short, no pecten. 



2. B. trichella Busck. Palpi light ochreous with a small dark spot on side of 

 second segment; antennae rather darker; head and thorax light ochreous. Fore 

 wing light ochreous at base, shading into purplish brown at tip, basal third of 

 costal edge black; a short longitudinal black streak in middle of wing at three- 

 fourths way to apex, and an obscure oblique one at base of fringe; the wing 

 sparsely dusted with black. Fringe, hind wing, and legs light ochreous; abdomen 

 fuscous. 1.1 mm. 



August. 



Western Pennsylvania; southern Ohio. 



Til. Fore wing practically linear (fig. 1M6) ; Cu-, very short and transverse; hind 



wring linear with renation almost obsolete and the scale tuft prominent. 



one-fifth ivay out from base; epiphysis small and prominent; palpi turned 



laterally; antenna' smooth, without pecten; maxillary palpi porrcct 



( Batrachedra ) . 



3. B. salicipomonella Clemens. R. and M, separate; antenna 1 dark fuscous, with 

 white annulations except at tip; palpi dark fuscous; second segment with a white 

 ring at tip and sometimes at base; third with a more or less distinct central ring 

 and whitish tip. Head fuscous, face white. Fore wing powdery fuscous, with a 



