92 
B. tricolor, Blackb. Mr. Gahan (loc. cit.) thinks that this 
may be the same thing as Zctosticta simillima, White, remarking 
at the same time the close resemblance and alliance between 
Betheliwm and Eetosticta, a resemblance which Ialso had referred 
to ina former paper. It is difficult to arrive at certainty with- 
out seeing the type of Z. stmillama as to whether Mr. Gahan’s 
surmise is correct, but it is quite certain that B. tricolor has the 
eyes of a Betheliwm and not of an Ectosticta—so that if the above 
synonymy is to be accepted £. semillima must be removed from 
Ectosticta to Bethelium. 
SISYRIUM. 
S. sparsum, Blackb. Mr. Gahan (loc. cit.) thinks it not un- 
likely that this is identical with §. stigmoswm, Pase. Un- 
fortunately the matter could be decided only by a comparison of 
types. My species was described on a unique male, Mr. Pascoe’s 
ona female. Compared with the figure of the latter, S. sparsum 
is very much smaller and of more slender build, with the anterior 
dark mark on the elytra (not a fine line as in stigmosuwm, but) a 
large quadrate blotch nearly as wide as long. It is quite possible 
that these differences appertain to the sexes of one species that is 
variable in its markings, but 1t is to be noted that when the type 
of sparswm is compared with Pascoe’s description the following 
differences also appear :—The prothorax is of much darker colour 
than the description indicates, and I cannot trace five un- 
puuctured spaces on that segment, the unpunctured spaces 
appearing as three longitudinal zones. In, the type of sparsum 
there is a large deep fovea on the disc of the prothorax im- 
mediately in front of the base which looks, however, as if it might 
be accidental, and on account of my suspecting it to be so I did 
not emphasize it in describing the species, but merely called the 
protkorax ‘ inequalis.” 
S. ventrale, Blackb. Mr. Gahan (loc. cit.) seems to think that 
this may be identical with stigmosum, Pasc., if sparsum, Blackb., 
is not ; this, however, can hardly be the case, for he states that 
by measurement the length of the prothorax of stigmosum is all 
but half greater than the width, whereas, in ventrale the length 
is ail but the same as the greatest width (it is about as 16 to 15). 
S. vittatum, Blackb. (? var. of stigmosum). I do not see where 
the mistake that Mr. Gahan perceives in my remarks on this 
insect comes in, as [ expressed no opinion as to the proportions of 
the prothorax in stigmosum, but merely indicated as my reason 
for not emphaising very much the difference between the propor- 
tions of the prothorax in it and the var. vittatum that Mr. Pascoe 
did not say that he had measured the prothorax of stigmosum, and 
that if he had not done so his statement of the proportions would 
not be realiable enough to confirm the distinctness of. vittatum 
