CLASS V. IXSF.CTA. 161 



Fam. VI. Elaterid,€. Leach. 



Palpi thick at their extremities : antcnncE filiform : hodi; formed for 

 leaping : hinder thighs with a trochanter. 



Genus 69. CERATOPHYTUM. Leach. Cerophytvm, Latr. 

 Mandibles without notch at their extremities : tarsi with their last 



joint but one bifid. 

 Sp. 1. Cer. Latreiltii. Leach. 

 Cerophytum Elateroides. Latr., Leach. 

 Inhabits Germany, Switzerland, France, and England. In the latter 



country it was discovered by IMr. Millard in the New Forest, Hants. 



Obs. — Latreille referred this genus to the preceding family (as a sec- 

 tion of his family Sterroxi); but it has been referred to the Elutc- 

 ridie by Dr. Leach in his MSS. 



Genus 70. ELATER of authors. 

 Mandibles notched or bifid at their extremities : tarsi with all their 

 joints entire. 



This genus should be divided into several others, but the charac- 

 ters have not yet been developed. They may be divided into the 

 following sections, as given by Latreille in his Genera Crustaceonun 

 et Inseclorum. 



* The last joint of the antenna nith the ape.v so abrupt I j/ acuminated 

 as to give the appearance of a twelfth joint . 



Sp. 1. Elat.ferrugineus. Antennse serrated ; colour black : thorax with 

 the exception of the hinder margin and elytra red, finely punctated, 

 pubescent : elytra with punctured strife. 



Elater ferrugineus. Linn., Fabr., Oliv., Panz., Ma7-sh., Leach. 



Inhabits rotten trees, especially willows. In Britain it is very rare. It 

 sometimes occurs in Kent ; varies in size and colour. In Dr. Leach's 

 collection (now in the British Museum) is a variety' with the thorax 

 entirely black. 



** Last joint of llie antenna oval or oblong, not abniptlt/ acuminate. 



I. Bo^'y not linear, but three times as long as broad ; abdomen oblong- 

 trians.ulate. 



A. AntenniB {of the male at least) pectinated or serrated, 



Sp. 2. Elat.castaneus. Antennce of the male pectinated, colour black; 



head and thorax red-tomentose : elytra yellow punctate-striated: 



apex black. 

 Elater castaneus. Linn., Fabr., Panz., Leach. 

 Inhabits 



