1911.] 



171 



— Base of tliorax slig-litly sinuate ; two oiitenuost strise of elytra complete 



at base ; side border of elytra very narrow, not or scarcely visiljle in the 

 middle if viewed from above L. lucens, Fairm. 



16. Thorax broadest at the actual base ; posterior angles sharp ; striae of elytra 



very finely and not closely punctured; anterior tibiiB narrow 17. 



— Thorax broadest before the base, and from thence parallel-sided or con- 



tracted to the base ; posterior angles blunt 20. 



17. Interstices of elytra with cross-striation 18. 



— Interstices of elytra without cross-striation 19. 



18. Form narrower ; club of antennae dark ; posterior femora simple in both 



sexes L. parvula. Sahib. 



— Form broader ; club of antennae light ; posterior femora with a sharp tooth 



in S , and distinctly angled beneath in 9 L. flavicornis, Ch. Bris. 



19. 3rd-5th striae of elytra strongly sinuate L. scita, Er. 



— 3rd-5th strise of elytra not sinuate L. ovalis, Schm. 



20. First joint of posterior tarsi long, tarsal claws very small ; club of antennae 



loose, testaceous ; striae of elytra with very closely set and somewhat 

 irregularly placed punctiires ; thorax parallel-sided before base... 



L. brunnea, Sturm 



— First joint of posterior tarsi much shorter, tarsal claws larger 21. 



21. Size larger; colour entirely pitchy brown or pitchy black; thorax more 



strongly punctured ; club of antennae only slightly darker L. picea. 111. 



— Size smaller ; colour ferriiginous, or if pitchy ferruginous, with the thorax 



darker than the elytra ; thorax less sti'ongly punctured 22. 



22. Antennae very short ; club very large and broad with last joint quite as 



large as penultimate L. clavicornis, Eye 



— Antennae moderate, club narrower 23. 



23. Size larger; thorax less strongly contracted behind, more strongly and 



closely punctured; shape and coloiu- very variable L. dubia, Kug. 



— Size smaller ; thorax more strongly contracted behind, less strongly and 



more diffusely punctured ; club of antennae not) dark L. algirica, Kye 



24. Side margin of elytra set with long hairs; thorax broadest just behind 



middle ; colour lighter L, ciliaris, Schm. 



— Side margins of elytra set with short hairs ; thorax broadest just before 



base ; colour darker L. furva, Er. 



In his " Coleoptera of the British Islands," vol. Ill, p. 34, the 

 Rev. W. W. Fowler describes the structure of the posterior femora in 

 the males of Liodes. The posterior border of the femur is composed 

 of two plates, between which the tibia lies when fully flexed. The 

 upper plate terminates at the apex in a small rounded lobe, which is of 

 much the same shape in every member of the genus. The under plate 



