Mr. T. V. Wollaston on Additions to Madeiran Coleoptera. 459 



in my collection, with the examples of L. nubigena ; and it was 

 not until M. Allard (to whom I lately transmitted my Madeiran 

 and Canarian Halticida for revision) pointed out to me their di- 

 stinctive characters, that I became aware of my mistake. It may 

 be at once recognized from that specie's by its rather smaller 

 size and more ovate form (its humeral angles being much 

 more rounded off), as well as by its shorter antennae, less pro- 

 minent eyes, more lightly punctured surface, and somewhat less 

 pallid hue. My specimens were taken by brushing the grass, 

 on a sloping bank, about two-thirds of the way up the Ribeira 

 de St. Lusia, in the summer of 1855. 



Fam. Chrysomelidse. 



Genus CHRYSOMELA. 



Linnaeus, Syst. Nat. edit. i. (1735). 



Chrysomela onycMna. 



C. ellipticoovata, nitida, viridi-splendens ; capite prothoraceque fere 

 impunctatis, hoc ad latera late subemarginato ; elytris minute 

 sub-biseriatim punctulatis, apicem versus in medio subnodoso-con- 

 vexis et lateraliter compressis, utrinque latera versus longitudina- 

 liter costatis necnon intra marginem valde corrugate-rugosis. 



Long. corp. lin. 5|. 



Chrysomela Frayaria, Woll., Ins. Mad. 458, tab. ix. f. 7 (1854). 

 9 Woll., Cat. Mad. Col. 135 (1857). 



Although at all times exceedingly unwilling to alter a spe- 

 cific title (a step which should never be taken without the 

 strongest and most cogent reasons), I have nevertheless given 

 a fresh diagnosis of the Madeiran Chrysomela, feeling the abso- 

 lute necessity of imposing on it a new name. The constant re- 

 discovery, now, of this rare and curious insect on the Bystropogon, 

 and on no other plant whatsoever, would certainly imply that it 

 is essentially peculiar to it ; and hence there can be no doubt 

 that the three specimens which I originally detected (in August 

 1850) on the leaves of the Mountain Strawberry, were merely 

 accidental ones, which had fallen from off the bushes of Bystro- 

 pogon growing on the rocks immediately above them : so that 

 to persist in retaining for it the trivial name of Fragarice (which 

 I unfortunately adopted without sufficient evidence), would be 

 nothing more or less than to perpetuate an erroneous impres- 

 sion of its habits. I therefore consider that it is not only de- 

 sirable, but absolutely necessary, to substitute a fresh name ; and 

 I have consequently done so by giving it a more appropriate 

 one, suggested by its remarkable analogy, in general outline and 

 anomalous posterior contractions, to a hoof, 

 [To be continued.] 



