362 Mr. C. O. Waterhouse on Aphelorrhina simillima. 
aa, germinal contents; 6, process of chitinous coat, opening at 
c into tubular prolongation of the same, d; ee, truncated fila- 
ments; ff, point of union with chitinous coat; fg, rugz on 
the surface; Ah, axial canal; 2, germinal contents in the lower 
and dilated part of the axial canal; &, the same, altered 
into fatty-looking globules in the axial canal; J, small or free 
end of the filament (pointed form) ; m, the same (bilobate form) ; 
more magnified in m and o respectively, viz. onthe scale 1-6th to 
1-6000th inch. 
Fig. 3. Process of chitinous coat of the same, bearing two filaments 
truncated, to show fundamental form of tubular open prolonga- 
tion, a. Scale 1-24th to 1-1800th inch. 
Fig. 4. The same, bearing two filaments truncated, to show membranous 
expansions occasionally extended from and connecting the fila- 
ments. a, process of chitinous coat; 6, opening into e, prolon- 
gation from the same; d, membranous expansions. Same scale. 
Fig. 5. Three representations (a,b,c) of the tubular prolongation from 
the chitinous coat, bearing respectively rudimentary growths of 
different lengths of Spongiophaga Potts: in Meyenia (Spongilla) 
Bailey, Bk., from Buffalo, Lake Erie. Scale the same as that 
of figs. 8 and 4, to show the relative size and form of these 
rudimentary growths when compared with the full-grown 
filaments in fig. 1. 
Fig. 6. The same, on a still more magnified scale, viz. 1-24th to 
1-6000th inch, bearing the rudiments of two filaments, each not 
more than 1-4000th inch long, apparently connected by a mem- 
branous expansion round the opening of the tubular prolonga- 
tion from the process of the chitinous coat. a, prolongation ; 
b, opening at free end; ce, rudimentary filaments; d, mem- 
branous expansion. 
Figs. 7 and 8. The same, magnified on the same scale, but with filaments 
of longer growth, to show their crookedness at this period. 
aa, prolongations; 6, filaments. 
Fig. 9. Spongiophaga communis in Hircinia from the Levant, ends of, 
on the scale of 1-12th to 1-G000th inch. a, ovular end or bulb, 
presenting the appearance of a spiral line and point at the apex ; 
6, globular end or bulb. 
XX XVI.— On Aphelorrhina simillima, Westwood (Coleoptera, 
Cetoniide). By CHARLES O. WATERHOUSE. 
In a former volume of the ‘ Annals’ (Ann. & Mag. Nat. Hist. 
1879, iii. p. 87), I wrote a paper on Ceratorrhina guttata and 
the allied species, describing three new species, Aphelorrhina 
Julia, A. bella, and A. tibialis, and redescribing A. stmillima, 
Westwood, from the type in the British Museum. 
Dr. Kraatz has recently written (Deutsche ent. Zeit. 1880, 
xxiv. p. 165) on the same group, particularly with the view of 
showing that the msect which I have described as A. sdmil- 
lima is not the insect described and figured by Westwood, 
but that my A. Julia is the true semellima; and he proposes 
the name A. Westwoodii for my A. simillima. 
