102 Mr. C. 0. Waterliouse on the dijjerent forms 



Genus 28. 



Rostrum none. Antenn^w dentate. Tliorax with five 

 distinct areolets. Elytra witli four costie, the interstices 

 with a hue of obscure punctures on each side. 



Type, M. velutinus, sp. n. 



Genus 29. 



Rostrum none. Antennna dentate. Thorax rather 

 broad, with bhmt posterior angles, with a mesial lanceolate 

 areolet. Elytra paraUel, with four costas, the interstices 

 with two lines of punctm-es, the lines divided by a very 

 fine costa. 



Type, M. dichrous, C. Waterh. 



Genus 30. 



Rostrum none. Antennse dentate. Thorax small, with 

 five areolets. Elytra rather narrow at the base, gradually 

 enlarged posteriorly, with four costas, the intervals with 

 rugose punctuation. 



Type, M. limbatus, C. Waterh. 



Genus 31. 



Rostrum none. Antenna? dentate. Thorax triangu- 

 larly produced over the head, with a mesial longitudinal 

 carina in front, posterior angles acute. Elytra with four 

 costse, the intervals with two lines of regular quadrate 

 punctures, the lines divided by a fine costa. 



Type, Diet, angulata, Klug. 



Genus 32. Taphes, gen. n. 



Insect rather short, having a velvety appearance. 

 Antennae scarcely dentate, beset with long fine hairs in 

 the male. Thorax small, transverse, with a large lozenge- 

 shaped discoidal areolet, its angles nearly reaching the 

 margins. Elytra rather enlarged posteriorly, quadricos- 

 tate, the interstices with two lines of punctures (the lines 

 scarcely divided by any costa). 



Type, T. hrevicollis, sp. n. 



Genus 33. Pyropterus, Muls., Ann. Soc. Agr. Lyon, i. 

 1838, p. 81. 



Antennne simple, the 2nd and 3rd joints small, nearly 

 equal. Thorax with five areolets. Elytra with four 



