MISCELLANEA ENTOM()LOGICA,No. II. 



THE GENUS LIP A ftETRUS. 



By William Macleay, F.L.S., tfcc. 



The first paper under the above heading which 1 communicated 

 to this Society at its April meeting, dealt only with the 

 genus Diphucephala, a group of the Melolonthidae exclusively 

 Australian. The present paper will be devoted to another group 

 of the Melolonthidae also exclusively Australian. The genus 

 Liparetrus is placed by Lacordaire in his Sub-tribe Sericoides, — 

 which differs from his Sub-tribe Sericides in having the labrum 

 distinct from the clypeus, — and in his group Heteronycides, which 

 is characterized by having the labrum short, sub-horizontal, and a 

 little emarginate. 



The genus was first characterized by Guerin-Meneville, in his 

 Entomology of the Voyage of the Coquille. However, the 

 characters I now give are chiefly taken from Lacordaire's " Genera 

 des Coleopteres." 



Genus, Liparetrus. 



Mentum almost as long as broad, a little narrowed at the base, 

 cut obliquely, and widely impressed in front, the labial part of the 

 same width and a little emarginate. 



Maxillce robust the external lobe armed with four or five teeth. 



Palpi. — The last joint of the labial, sub-cylindrical, that of the 

 maxillary, thick and oval. 



Clypeus separated from the forehead by a sinuous line, of a 

 transversal square form, bordered in all parts, the anterior border 

 square, rounded or sinuous. 



Eyes moderate, slightly prominent. 



