256 



COLEOPTERA 



possesses several finger-like pouches that can l)e exstiilpated at 

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

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

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

 Tournier, when alarmed, it enters the water and goes l)eneath it 

 for shelter. Tlie third form of larva l>elongs to the genus Evri- 

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

 antennae of onlj four joints.^ It is very doubtful whether 

 Uucinetus is related to other Dascyllidae ; some authorities indeed 

 place it in Silphidae. 



Fam. 59. Rhipiceridae. — Tarsi Jirc -Jointed, furnislicd vitJi 

 (I robust onycliiuvi (« straiglit cliitinovs process hearing hairs) 



lietiveen the cUnvs ; antennae of 

 the male hearing long 2^1'oeesses, 

 and sometimes consisting of a 

 large vuniher of joints. Man- 

 dihles rohnst, strongly curred , 

 a7id almost calliper-like in 

 form. This small family of 

 less than 100 species is widely 

 distril)uted, 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 

 histor}". The larva of Calli- 

 rltipis dejeani (Fig. 133, A) is 

 descril)ed l)y Schiiklte as hard, 

 cylindrical in form, and peculi- 



FiG. 133.-A, Larva of Callirhqjis dejeani ^rly truncate behind, SO that 



(after Schiodte) ; B, Rhipicera mystacina there appear to be only eight 



male, Australia ; C, under side of its liiiul ^ -, ■ ^ ^ • ^ 



foot. abdominal segments, tlie nmtli 



segment being so short as to 

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

 in wood. 



Fam. 60. Elateridae {Click-heetles). — Antennae more or less 

 serrc/te along the inner margin, frequently pectinate, rarely 

 filifarni. Front coxae small, splierietd. Thorax asvaJly vith 

 ^ Ferris, Ann. Soc. ent. France (2) ix. 1851, p. 48. 



