COLEOPTERA 



Those of the burying-beetles have spiny plates on the hack of the 

 body, and do not resemble the other known forms of the family. 

 The rule is that the three thoracic segments are well developed, 

 and that ten abdominal segments are also distinct ; the ninth 

 al)dominal segment bears a pair of cerci, which are sometimes 

 elongate. Often the dorsal plates are harder and better develoi)ed 

 than is usual in Coleopterous larvae. This is especially the case 



with some that are en- 

 dowed with great powers 

 of locomotion, such as S. 

 ohscnra (Fig. 104). The 

 food of the larvae is as a 

 rule decomposing animal 

 or vegetable matter, liut 

 some are predaceous, and 

 attack living objects. 

 The larger Silpha larvae 

 live, like the JVecro- 

 pJioriis, on decomposing 

 animal matter, l)ut run 



Fig. lOi.— a, Larva of Si/pha obscura. Europe. t^^OUt tO SCck it ; heUCC 



(After Schiijdte). B, Ptoma])hiia lacnjmosa, many Specimens of some 



Australia. , , , , 



ot these large larvae may 

 sometimes be found amongst the bones of a very small dead Ijird. 

 We have found the larva and imago of ^S'. thoracica in birds' nests 

 containing dead nestlings. S. atrata and ;S'. laevigata make war 

 on snails. >S'. hq^ponica enters the houses in Lapland and ravages 

 the stores of animal provisions. S. opaca departs in a very 

 decided manner from the habits of its congeners, as it attacks 

 beetroot and other similar crops in the growing state ; it is 

 sometimes the cause of serious loss to the growers of beet. The 

 larvae of the group Anisotomides are believed to be chiefly 

 subterranean in habits ; that of A. cinnamovica feeds on the 

 truffle, and the beetle is known as the truffle-beetle. 



The number of species of Silphidae known must l)e at present 

 nearer 900 than 800. Of these an unusually large proportion be- 

 long to the European and North American regions; Silphidae being 

 apparently far from numerous in the tro]ncs. Eather more than 

 100 species are natives of Britain. The family reappears in con- 

 siderable force in New Zealand, and is probably well represented 



