32 THE CANADIAN ENTOMOLOGIST. 



"The lirva is cylindrical in form, with the full complement of very- 

 short legs. When mature it measures from 0.45 to 0.50 inch in length, 

 with a diameter of 0.08. Color, pale yellow immaculate, except for the 

 transversely oblong brown spot on the first segment, which represents the 

 cervical shield. The incisions are deep and abrupt, and under the lens 

 the surface appears covered with shallow punctures or stippling. On the 

 dorsum of each segment are two transverse ridges of minute warty 

 elevations, each giving rise to a fine light hair. Head small, oblique, 

 polished, dark, mottled with brown ; jaws a few shades paler. 



"These larvae remain dormant in the stems overwinter and until spring 

 is quite advanced. They then cut holes through the sides of the stem 

 to, but not through, the thin outer bark or cuticle, showing on the latter 

 like a round transparent spot. The place of egress thus provided, the 

 larvae return to the central burrow and enclose themselves in thick, tough 

 cocoons of white silk in the midst of a loose web of the same material 

 The pupa is rather thick and of a pinkish color, and the wing cases cover 

 only the upper half of the abdomen. This state lasts from 20 to 25 days, 

 the imagines appearing about the last of May." 



I have before stated that Miss Murtfeldt has sent me Gelcchia super- 

 bella from St. Louis. St. Louis is on the same parallel that we are on at 

 Covington, but southern insects seem to extend further north along the 

 shores of the Mississippi than along the Ohio. This seems to be 

 especially true as to Southern Illinois. Neither of the two species 

 (cenotherceella and superbrtla) are found in Northern Kentucky. 



L. unicristatella. N. sp. 



Palpi slender, white, with a narrow, obscure brownish annulation about 

 the middle of the third joint and another near the apex. Head and 

 antennae white. Base of the wings white, except on the costa, the white 

 extending along the dorsal margin to a tuft of raised scales about the 

 middle, but interrupted about the basal fourth by a projection to the 

 dorsal margin of the ochreous and fuscous scales which cover the costal 

 portion of the wing, extending to the fold. The scales of the tuft are 

 white, tipped with dark brown, and immediately before it the white of the 

 dorsal margin projects across the fold into the ochreous and fuscous 

 portion of the wing. In the ochreous and fuscous portion those colors 

 are intermixed with each other and with some white scales, and they 

 spread over the apical part of the wing, where the white is increased in 



