218 Rev. H. Clark’s Wotes on the 
14. H. bivittatus, Lap. (Etud. Ent. 97). 
A species which, apparently confined to the South African 
region, is notable among its congeners (unless I am much mis- 
taken) for the aberrations of pattern and variation in size which 
it presents; its typical character is well described by Aubé 
(Spec. Gen. 207). I have an example from the Cape, in which 
a broad and well-defined transverse basal band connects the 
medial longitudinal marking with the scutellum; and another 
example from Ovampo Land, Lake N’Gami, resembling in all 
respects the typical pattern, but strangely aberrant in size, being 
only 52 instead of 7 lines in length. The species differs from 
H. vittatus of Fabricius, and also (if this species be really distinct) 
from H, 4-vittatus of Blanchard, in the relative position of its 
two marginal bands, which never approximate (as in the former), 
and never are abbreviated (as in the latter), but are continued, 
each parallel to the other, to the apex of the elytra. 
15. H. stagnalis, Fab. (Syst. El. i. 265); Aubé (Spec. Gen. 201). 
This species would seem to have an extended range. Hitherto 
it has been known only in Europe, and as a rare species, but I 
have a single example, identical in all respects with the European 
form, from the Cape of Good Hope. 
16. H. vittatus, Fab., var. (Pl. XIV. fig. 6.) 
Dr. Aubé (Spec. Gen. 208) points out the variation of pattern 
which occasionally is met with in this common eastern insect. 
I received from Mr. S. Stevens some years ago two ex- 
amples from North India, which, differing somewhat from each 
other, and also in some respects in puncturing from the usual 
type, present (as it seems to me) an additional and remarkable 
variety of pattern. Of the three rows of strie-like punctures on 
the elytra, one only is apparent ; and moreover there are certainly 
sparsely scattered punctures between the suture and the first 
stria which I cannot discover in any of the usual examples of 
H, vittatus, and which are not noticed in Aubé’s excellent descrip- 
tion. The peculiarity however of the variety before us consists 
in the form of the flavous band: it extends (as will be seen from 
the figure) from the margin to the region of the scutellum (the 
scutellum itself and a narrow border line of the elytra being black); 
it then narrows considerably (its inner boundary line crossing the 
first row of punctures obliquely), and is continued, parallel to the 
suture, as far as the apex; the outer boundary line leaves the 
