130 Mr. G. R. V/aterhouse's ISlotes on 



ledge the Gyllenlialian species has not hitherto 

 been found in England. T. hicolor is represented 

 in Stephens' Collection by three specimens, two of 

 which are old, dirty and greasy, and pinned with 

 largish pins ; the third is a fresh specimen, pierced 

 by a delicate thin pin. With regard to the species 

 Stephens says, — " Rare : I possess a pair from the 

 Marshamian Collection, and I once beat a single ex- 

 ample from a birch-tree in Coombe-wood in June." 

 From this note I have strong grounds for believ- 

 ing that the two old specimens are the Marshamian 

 types, and, in fact, represent the S'llpha hicolor 

 of his work. The elytra in these two insects, being 

 stained with grease, appeared to be black, but upon 

 applying a little spirits of wine with a camels' hair 

 pencil to one of the elytra of each specimen, I found 

 that the elytra were of a green-blue colour, and that 

 in this, and all other respects, they agree perfectly 

 with the Triplax cenea of authors. 

 The third specimen, which is pinned as Mr. Stephens 

 usually pinned the insects captured by himself, is a 

 distinct species, and being in good condition was no 

 doubt the insect given to Mr. Charles Curtis to 

 draw, for the plate in the "Illustrations." This most 

 careful artist would never have made a drawing 

 from either of the other two specimens without first 

 cleaning it ; and, moreover, the figure clearly repre- 

 sents the specimen in question, in having a black 

 scutellum, &c. &c. This insect is about equal in 

 size to the TV. cenea, but differs in having black 

 elytra with the interstices of the striae distinctly 

 punctured, and in having the scutellum, as well as 

 the chest and abdomen, black ; and, in short, agrees 

 well with Lacordaire's description of Triplax rufi- 

 colUs — see the Monogr. des Erotyliens, p. 211, 

 sp. 10. 

 So that Silpha bicolor, Marsh. = Triplax cenea, auct. 



Triplax bicolor, Steph. descrip. := Trijilax bicolor, 



Gyll. — not British ! 

 Steph. Illustr. pi. 17, f. 4 = Tri- 

 plax rujicollis, Lacord. 



