1921] Wheeler: Habits of Cucujidae 179 



beetles have lived. All the stages are passed through in several 

 months, the young larvae being found in the spring, the adults 

 in late summer. The latter hibernate under the bark. According 

 to Ganglbaur (1899) the larva is "undoubtedly carnivorous." 



Psammoechus bipunctatus Fabr. — Europe. Recorded in 

 Britain from marshy places at roots of grass and in refuse 

 (Fowler, 1889) ; in Germany on the banks of streams or ponds 

 under dead rushes (Ganglbaur, 1899; Reitter, 1911). 



Psammoechus dcsjardinsi Gui'^rin. — Cosmopolitan (Casey, 

 1884); Florida (Leng, 1920). 



Family Laemophloeidie Boving. 



Laem,ophloeus alternans Erich. — Cosmopolitan ; "found 

 everywhere" (J. B. Smith, 1909). In Germany under bark of 

 conifers in galleries of beetles of the genus Pityogenes (Reitter, 

 1911). In France occurring occasionally in the galleries of 

 Hypobonis ficus, a bark beetle of fig-trees, but also in galleries 

 of other bark beetles in other plants (Ferris, 1853 ; Picard, 

 1919). 



Laem,ophloeus ater Oliv. — Europe. In France in dead or 

 dying stems of broom and gorse, preying on the larvae of the 

 bark-beetle Hylesinus rhododactylus (Ferris, 1853). In dead 

 stems of broom and under elm-bark in Britain (Fowler, 1889). 

 Rare under bark; common in bran and middlings in Germany 

 (Reitter, 1911). Occurs in France not only in the galleries of 

 Hypoborus ficus in fig-bark, but also in the galleries of other 

 Scolytids in other plants (Picard, 1919). 



Laemophlocus biguttatns Say. — United States (Ind., Neb., 

 Fla., So. Cala., N. J.). Throughout the State of New Jersey 

 under bark; fall to mid-summer. (J. B. Smith, 1909.) 



Laemophloeiis himaculatus Payk. — Europe. Under bark of 

 oak, beech and horn-beam in Britain (Fowler, 1889) ; in Ger- 

 many under beech bark (Reitter, 1911). 



Laemophloeiis castaneus Erich. — Europe. Under birch and 

 chestnut bark in Germany (Reitter, 1911). 



