Elder longhorn beetle: The genus, Desmocerus spp. (Cerambycidae) are commonly referred to as elderberry longhorn beetles.  The most important species is D. palliatus. Declining numbers, listed as Special Concern in Massachusetts.

Biology: Adult emerges at about the time of elderberry bloom. Tunnels in lower shoots and cane.  See ForestriImage of  pupa in cane.

Control: 

Additional Reading:

• Bugnet guide page, including images, Missouri elderberry resources, MacGill Univ. site, Ontario site,
  
• Way, R. D. 1981.  Elderberry culture in New York State.