256 



COLEOPTERA 



possesses several finger-like pouches that can be exstulpated at 

 the end of the body. It is probable that these larvae are carni- 

 vorous. The imago of this Insect abounds on the bushes along 

 the banks of some of the rapid waters of Scotland ; according to 

 Tournier, when alarmed, it enters the water and goes beneath it 

 for shelter. The third form of larva belongs to the genus Euci- 

 netus, it lives on fungoid matter on wood, and has ordinary 

 antennae of only four joints. 1 It is very doubtful whether 

 Eucinetus is related to other Dascyllidae ; some authorities indeed 

 place it in Silphidae. 



Fam. 59. Rhipiceridae. Tarsi Jive -jointed, furnished with 

 a robust onychium (a straight chitinous process bearing hairs} 



behveen the claws; antennae of 

 the male bearing long processes, 

 and sometimes consisting of a 

 large number of joints. Man- 

 dibles robust, strongly curved, 

 and almost calliper -like in 

 form. This small family of 

 less than 100 species is widely 

 distributed, though confined to 

 the warmer regions of the 

 earth, a single species occur- 

 ring in the extreme south of 

 Eastern Europe. Very little 

 is known as to the natural 

 history. The larva of Calli- 

 rhipis dejeani (Fig. 133, A) is 

 described by Schiodte as hard, 

 cylindrical in form, and peculi- 

 FIG. 133. A, Larva of Qaliirhipis dejeani. arl 7 truncate behind, so that 



(after Schiodte) ; B, Rhipicera mystaciwt there appear to be Ollly eight 

 male, Australia ; C, under side of its hind , , . , 



foot. abdominal segments, the ninth 



segment being so short as to 



look like an operculum at the extremity of the body. It lives 

 in wood. 



Fam. 60. Elateridae (Click-beetles'). Antennae more or less' 

 serrate along the inner margin, frequently pectinate, rarely 

 filiform. Front coxae small, spherical. Thorax usually with 

 1 Perris, Ann. Soc. ent. France (2) ix. 1851, p. 48. 



