U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 92 PLATE 22 
LEE 
te 
SPECIES OF MYELOBORUS, PITYOBORUS, AND PITYOPHTHORUS 
29, Myeloborus deleont, fore tibia; 30, M. deleont, antenna of male; 31, M. deleont, antenna 
of female; 32, Pityoborus tertius, antenna; 32a, P. tertius, fore tibia; 33, Pityophtho- 
rus regularis, antenna; 34, P. costalimat, antenna; 35, P. zetek1, antenna; 36, P. shan- 
nont, antenna. 
