198 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



Larva. — Head large, broad, and flat ; as broad as tbe protboracic segment ; pale 

 born or whitisb color, surface rougb ; in front crossed by two dark reddisb-brown 

 broad lines wbieb form two large sballow scallops ; tbe front line extends along tbe 

 sides, including tbe eyes and tbe front edge of tbe clypeus ; tbe otber is broader, 

 forming two scallops and crossing tlie apex of tbe clypeus. On eacb side of tbe bead 

 below tbe front line is a sbort, nearly straigbt brown-black line not reacbing as far 

 as tbe eyes. Tbe median suture of tbe bead is ratber deeply impressed ; tbe vertex 

 on eacb side is a little swollen and marked witb eigbt or nine dark reddisb-brown 

 more or less confluent spots. Tbe posterior edge of tbe bead is edged witb black 

 brown. Tbe body is somewbat flattened, pale pea green, a little paler tban tbe 

 under side of tbe leaf. Protboracic segment witbout a sbield, but broad, flat, and 

 green like tbe rest of tbe body. On tbe sides of tbe tbree tboracic segments is a 

 dark tubercle tinged witb reddisb between, forming a lateral tboracic line. No dor- 

 sal tubercle, but pale bairs as long as tbe body arise from minute points, wbicb are 

 obscurely indicated. Lengtb, 23™"". 



Pupa. — Body very tbick and stout ; the bead broad, and tbe ablomen sbort and 

 tbick, tbe end of tbe body very blunt, tbe tip broad and obtuse, somewbat tubercu- 

 lated, not spined. Tbe wings reacb to tbe end of tbe fiftb abdominal segment ; and 

 on tbe under side of the sixth and seventh segments are two dark ventral small cal- 

 losities ; the tip is broad, truncated, rougb and dark. Lengtb, 10"'°' ; thickness, 



jffoth, — A very large species for tbe family to which it belongs. Head witb tbe 

 scales between tbe antennae and on tbe vertex loose and thick, not smootb as in 

 Gelechia. Palpi long and slender, smooth, the third joint very long and slender, over 

 one-balf'as long as tbe second. It is so large and tbe fore wings so broad and oblong, 

 that at first it might be mistaken for a Tortrix. Body and wings snow white. Fore 

 wings snow white, witb two smoky trim dots at tbe base of the wing near the costa; 

 two smoky spots inside of tbe middle of tbe wing on the internal edge. Beyond the 

 middle of tbe wing are five or six indistinct, pearly, smoky spots, tbe central one 

 apparently forming the discal dot. Two faint, curved, smoky lines parallel with 

 eacb other and to the outer edge, neither of them reacbing the costal edge of tbe 

 wing, and tbe inner less than oue-balf as wide as the outer. On tbe outer edge of 

 the wing, on tbe white fringe, is a row of about five conspicuous dark-brown spots ; 

 the base of tbe fringe is smoky, forming a faint line. Body, hind wings, abdomen, 

 and legs snow-white ; antennte light brown. On binder part of tbe thorax very dis- 

 tinct when the wings are closed, is a large prominent tuft of broad brown scales, 

 wbicb send oflf diff"erent metallic colors, especially steel-blue. Lengtb of body, 9 to 

 10""» ; of fore wing, llmm ; expanse of wings, 24™"^. 



277. THE BROWN CRYPTOLECHIA. 



Cryptolechia quercicella Clemens. 



The leaves of the oak and, as we have found the past season, the 

 aspen, are often bound together by a rather large flattened Tineid cat- 

 erpillar, larger in size than most larvoe of the family to which it belongs. 

 It is of about the size of the caterpillar of C. schlagenella. 



The larva of the present species (originally described by Clemens as 

 Psilocorsis quercicella) was said by that author* to bind the leaves of 

 oaks together in August and September (in Pennsylvania) and to pick 

 out the parenchyma between the network of veins ; to weave a slight 

 cocoon between two leaves, appearing as a moth in March and April. 



*Proc. Acad. Nat. Sciences, Phil., June, 1860. See also Clemens's Tineina of North 

 America, edited by H. T. Stainton, p. 149. 



