THE FAMILY LYCTID.E. 131

 Subsection b .
 Series ( 1.

 L. californicus Casey.-Recorded as breeding in adobe wall.
 L. prxustus Erichson.-HIabits not recorded.
 Series c2.

 L. parallelopipedus (Melsheimer).-Extensive olb)servations have been made on the habits of this species. It infests the seasoned sapwood of commercial products made from persinnon, hickory, ash, oak, and bamboo; it also lives in the dead wood or natural growth of osage orange, sassafras, and fig.
 L. curtulus Casey.-Common in dead wood or natural growth of mesquite, Parkinsonia, mimosa, hackberry, cotton stems, and fig.

 SUBDIVISION B.

 L. politus Kraus.-Found in dried licorice roots.
 L. brunneus (Stephens).-In seasoned wood and dried herbaceous roots.
 L. pubescens Panzer.-Habits not recorded in connection with specimen.
 SUBDIVISION C.
 SECTION a3.
 Subsection bl.

 L. opaculus Le Conte.-In pith of dead grapevines.
 Subsection b2.
 L. suturalis Faldermann.-Ilabits not recorded.
 L. cavicollis Le Conte.-In commercial products, seasoned orange wood and hickory, tanbark oak, and cordwood of live oak.
 SECTION a4.
 L. cinerius Blanchard.-Habits not recorded.
 L. planicollis Le Conte.-Extensive observations have been made on the habits of this species. It is common in commercial products of seasoned ash, oak, hickory, persimmon, and sycamore. Rearing records show that it may breed continually in the same wood during a period of at least six years, or until all the wood tissue has been converted into powder.
 L. carbonarius Waltl.-In seasoned oak and bamboo, in natural growth and in commercial products.
 L. parmlus Casey.-In dead and dry wood of locust (Robinia neomexicana), according to Schwarz.