1871.) 207 
that the insect referred to by that gentleman at p. 155 of the present Vol. as 
T. agilis, Rye, must be attributed. I am answerable for this error, as I so named 
that example, though with a reserve of doubt, on account of apparent discrepancies 
between what remained of its (too slender) antenng and those of T. agilis. The 
sight of additional specimens has entirely justified my doubt: indeed, the bright red 
colour of the Southsea species is quite enough (without the structural differences) 
to separate it from my agilis. 
Allard mentions Scrophularia aquatica as the food-plant of T. rutila; but, 
from the time of year at which Mr. Moncreaff’s captures were made, it would be 
impossible to say on what plant his insects had fed up. 
THYAMIS CERINA, Foudras; All., l.c.,p.154. I have in my cabinet a Thyamis, 
taken by myself in the London district, which I attribute to this species. It is 
rather smaller than T. ballot, which it considerably resembles, and from which it 
differs in being ferruginous-red beneath (instead of black), and in having the 
punctuation of its elytra confused (instead of being disposed in tolerably distinct 
strize near the base) and not quite so strong. 
TRIMIUM BREVIPENNE, Chaud. Thanks to the liberality of Mr. Lawson of 
Scarborough, who has kindly sent me many specimens of Trimiwm, I am enabled 
by personal experience to corroborate the somewhat doubting record of this species 
in Ent. Annual for 1870. Of Mr. Lawson’s captures in 1869, about two-thirds 
seem to be T. brevipenne, and one-third brevicorne; and, from the former being so 
small and tender that they would not bear setting, he came to the conclusion at 
the time that they were av immature condition of the latter. It may be worth 
while to repeat here that brevicorne (which has occurred to Mr. Waterhouse at 
Bishop’s Wood) is the larger and darker of the two, with decidedly larger eyes, and 
rather longer elytra, which are rounded comparatively abruptly at the shoulders, 
the rounding in brevicorne commencing almost directly from the hinder apex of the 
wing-case. There is also a very slight difference in the hinder margin of the elytra, 
which is apparently less evidently indented just before each outer angle in brevi- 
penne.—H. C. Rye, 10, Lower Park Fields, Putney, S.W.: January, 1871. 
Note on possible double-broods of Thyamis.—Is it known for certain if any of 
the species of Thyamis are double-brooded ? All those with which I am acquainted 
leave the pupa in autumn, hybernating as perfect insects ; and their resulting larvee 
feed through the spring and summer. Now, unless 7. jacobee be double-brooded, 
I cannot see how the small red specimens which I get at Hayling Island from 
November to May, and the larger pale specimens which I get on Southsea Beach 
from June to September, can be properly attributed to one species; and yet I do 
not doubt but that both are T. jacobee.—H. Moncrearr, 9, Wish Street, South 
sea, January, 1871. 
Duration of the larval state in Hros.—I have just bred another Eros affinis from 
Killarney. It is now five years since I took the larvae, seven in number,—from 
which I have succeeded in rearing five of the beetle-—Joun Ray Harpy, 118, 
-Embden Street, Hulme, Manchester, Janwary, 1871. 
