OintYSOLINA. 



17 



11. Epipleuron verticil Paropsides, Motsch., pj 71. 



Epipleuron horizontal 12. 



12. Tibiae furnished externally with a 



spine or tooth Phytodecta, Kirby, p. 77. 



Tibiae with no such spine or tooth . . Phyllodjscta, Kirby, p. 83. 



13. Claws split or cut in the middle .... 14. 

 Claws simple throughout or slightly 



angulatly dilated near the base . . 15. 



14. Body ovate, strongly convex Lycaxua, Stal, p. 85. 



Body elongate, more or less parallel- [p. 86. 



sided Chalcolampra, Blanch., 



15. Insect apterous 10. 



Insect with wings Potaninia, Weise, p. 92. 



16. Body elongate, considerably narrowed 



behind Pseudolina, Jac, p. 90. 



Body ovate, somewhat narrowed 



behind Apaksha, gen. n., p. 95. 



The gen tis Synerga, Weise, is not included in the above key : 

 see remarks on p. 21. Neither does the genus Eiitomosc<lis, 

 Chevr., find a place in the key, since, as explained below (p. 96), 

 I believe that the Indian species referred to it, namely E. metal- 

 lica, Baly, will prove to be a synonym of Potaninia assamensis, 

 Baly, and that true representatives of Entomoscelis have yet to be 

 found in the region under review. 



Genus CHRYSOLINA, Motschulshj* 



Chrysolina, Motsch., Schrenck's Reisen Amur!, ii, 1860, p. 206. 

 Chrysomela, L., Svst. Nat. ed. x, 1758, p. 308 (pars); Chapuis, Gen. 

 Col. x, 1874, p. 397 5 Fowler, Col. Brit. Isl. iv, 1890, p. 301* 



Genotype, Chrysomela staphylea, L. (Europe). 



In the ' Annals and Magazine of Natural History ' for January 

 1925 ((9) xv, pp. 95. 96) I have explained at length why it i3 

 unfortunately necessary to propose a new name for the genus 

 known for so long, and by so many authors, as " Chrysomela.'" 

 In course of determining what is the genotype of Chrysomela, L., 

 I discovered that Latreille in 1810 cited Ch. pojpuli for that 

 purpose. Unluckily Stephens in 1831 made that common species 

 the type of his genus Melasoma, and as Melasoma jpopuli it has 

 long been known. It follows, however, that Melasoma must fall 

 as a synonym of Chrysomela, L. (see below, p. 67 of this volume), 

 and that another name must be found for the genus so long 

 referred to as " Chrysomela" Among the synonyms that have 



* For a complete list of references see Weise's Catalogue, ' Coleopteronun 

 Catalogus,' edited by Junk and Sehenkling, part 68, Berlin, 1916. In the 

 present work a full bibliography is in some cases not given, because some of 

 the references have no relation to our fauna ; only those are quoted which 

 have a direct relation to the Indian fauna or which form part o( a large 

 general work containing constructive principles, su3h as Chapuis' or Fowler's 

 works. 



YOL. II. 



