122 [January 



aud wriukled, ulthough shining; in some specimens it has an indistinct, 

 elongated, somewhat oblique brownish spot on each side, about the mid- 

 dle ; the posterior portion of the disc is opaque, covered with dense longi- 

 tudinal wrinkles, among which a straight impressed line is apparent in the 

 middle. The ventral side is irregularly punctured on the sides and has a 

 depression in the middle which is less apparent in some specimens. 



The two other tlwracic^ as well as the two first abdominal f-eymcntu^ have, 

 above and below, a transvei'se, flattened opaque disc, limited on each side 

 by a furrow, and showing some indistinct furrows on its surface ; the other 

 abdominal segments have the usual protuberances, on the dorsal as well as 

 the ventral side, marked with wrinkles. The last segment is short and 

 divided in two halves by a transverse fold ; the latter half has the anal 

 opening at the tip. iVll these segments are beset with short golden hairs 

 ini the sides. The distribution of the stigmata is normal. 



The presence of a narrow, fleshy, fold on the posterior margin of the 

 prothorax, above and below, is a character of the (Jcramhijriilse; but the 

 absence of feet belongs to the larvae of the Lamlidye. 



The larva usually occurs in the wood of the locust. Dr. Horn found it 

 in the hickory. According to him " its excavations are immediately sub- 

 " cortical ; unlike the Glytus, its course is not in a line, but it bores in 

 '•every direction, making extensive excavations." (See Froe. Entom. Soc. 

 Phila. I, p. BO. ) 



The pupa has numerous, pointed granulations on the prijthorax ; simi- 

 lar granulations ending in sharp points, are placed in a row on the dorsal 

 segments of the abdomen, near the posterior margin ; the same segments 

 have, more anteriorly, a few similar sharp, horny projections. On the pen- 

 ultimate segments, these projections are larger and recurved anteriorly at 

 the tip ; there are six in a row near the posterior margin, and two others 

 more anteriorly. The last segment has four similar projections in a row. 



PSENOCERUS SUPEENOTATUS Say. 



Larva about O.o long, subcylindrical or prismatical. pro- and mesotho- 

 rax being a little broader than the other segments. 



Hea<} about half the breadth of the prothorax, reddish-yellow, brown 

 along the oral margin, more reddish below. Anlmuec very shoi't (in my 

 specimens, preserved in too strong alcohol, they seem to have contracted 

 and arc hardly visible). Episfonia trapezoidal. Lahrinn transverse, short, 

 rounded anteriorly and ciliated with short hairs. Mandihlo^ subconical. 

 apparently not touching each other at their tips; the inaxVlfp and the lab- 

 inm seem to shai'c the characters of the jireceding laivjv. 



