Jjlkn gitaesus. 335 



Key to the Species. 



1. Elytra shining blue L. cyanipennis, Bryant, 



Elytra shining black 2. [p. 337. 



Elytra differently coloured 6. 



2. Head, pronotum and underside brown, 



posterior femora shining brownish-black ; 



elytra shining black, very regularly [p. 838. 



punctate-striate L. nigripennis, Motsch., 



Head and pronotum black like the elytra; 

 the latter not regularly punctate-striate. 3. 



3. Large insects (3^ mm, long and about 2 mm. 



broad) ; body narrowing somewhat be- 

 hind the prominent shoulders and then 



broadening again to a certain extent . . L. krishna, sp. n., p. 340. 

 • Insects always smaller than the above 

 dimensions ; outline of body a uniform 

 curve, gently narrowing towards the 

 apex, without the constriction in the 

 middle described above 4. 



4. Elytral punctures feeble ; interstitial spaces 



finely reticulate L. singhala, sp. n.,p.341. 



Elytral punctures bold and distinct ; inter- 

 stitial spaces smooth, shining, not finely 

 reticulate 5. 



5. Larger insects (3 mm. long) ; third seg- 



ment of antennae distinctly longer than 



second L. almorce, sp. n., p. 342. 



Small insects (about 1| mm. long) ; third 

 segment of antennas about equal to 



second L. lewisi, sp. n., p. 342. 



6.1 Colour of the greater part of the disc of 



the elytra smoky ; hind wings absent . . 7. 

 No such combination of characters 8. 



7. Each elytron with a longitudinal ridge 



extending from the humerus L. liratus, sp. n., p. 343. 



Elytron with no such ridge L.fumidus, sp. n., 



8. Colour brown, a round spot on the elytra, [p. 344. 



their apex, and the suture behind black. L. nigronotatus, Jac. 

 Body with no such markings 9. [p. 344^ 



9. Suture stained distinctly darker than the 



colour of the elytra* 10. 



Suture not so stained 15. 



10. Each elytron with a longitudinal black [p. 345. 



stripe. _ L. strigatus, sp. n., 



Elytra with no such stripe 11. 



11. Head, underside, suture very narrowly, 



scutellum and apex of femora black ; 



fourth segment of antennae distinctly [p. 345. 



longer than third L. birmanicus, Jac. 



No such combination of characters 12. 



12. There are a few distinct punctures across 



the interocular space 13. 



Interocular space without such punctures. . 14. 



* This section does not include Motschulsky's species sutura-nigra and 

 suturellus ; see pages 359, 360. 



