108 



ENT0M0L0Q 7. 



Fig. 110.— Lucanus dama. Fig. 111.— Larvaand cocoon. Natural size. 



Serricornia. 



In this group the antennae are usually serrate. 



Family Sphindidae. — Tarsi heteromerous, living in dry fungi. 

 SpMndus nmericanus Lee. 



Family Cioidae. — Tarsi 4- jointed; antenna? clavate or flabellate. Cis 

 fuscipes Mellie. 



Family Lymexylidae. Front coxa? conical, prominent; tarsi slender. 

 Lymexylon sericemn Harris. 



Family Cupesidae. Head narrowed behind; eyes smooth. Cupes 

 capita+a Fabr. 



Family Ptinidae.— Head not narrowed behind; eves granulated; 

 mesothoracic epimera not reaching the coxa?; antenna? with usually 

 9-11 joints, variable in form. Beetles mostly of small size, often 

 living in partly decayed vegetable matter. Ptinus fur Linn, some- 

 times attacks museum collections. Anobium is the death-tick, and its 

 ally, Sitodrepa panicea Fabr., has proved at times to be a museum pest. 

 Family Cleridse.— Antenna? inserted at the sides of the front, usual 



ly 11- jointed, rarely clubbed; 

 tarsi 5- jointed, with membranous 

 lobes beneath the four basal 

 joints. The beetles of beautiful 

 colors, occurring on plants or 

 trunks of trees; the larva? live 

 under bark and are carnivorous, 



iH and those of Trichodes (Fig. 

 W-\ 112) infest nests of bees in Eu- 



rope. A few (Corynetes, Necro- 

 bia) live on dead animal matter. 

 Trichodes nuttallii Kirby. 



Family Malachidae.— Ventral 

 segments 5 or 6; antenna 1 insert- 

 ed generally before the eyes. 

 Body with lateral, distensible vesicles. MalacMus emeus (Linn.). 



Fig. 112. — Trichodes apiarius. 



