284 LMay, 
elongatulus, Sturm, Schauta, wliicli is, I believe, now to the British Fauna. It 
closely resembles H. tristis, but is rather larger, flatter, and more obscure than 
that species, and has a wider head and thorax, and the elytra more pubescent. 
I have compared my specimen with continental types kindly lent me by Mr. Crotch, 
with which it agrees in every respect, excepting in its slightly smaller size. — 
Thos. Jno. Bold, Long Benton, Newcastle-on-Tyne, A'pril, 1868. 
Note on a new British Halijplus.—l occasionally find, in large ponds here, a 
BaliiMs which I think is H. varius, Nicol., Schaum. It is of the same pale 
testaceous hue as H. ohliqmis, with the elytra lineated with black ; the black lines 
next the suture nearly complete, and those towards the margm very slightly twice 
interrupted. Its smaller size and proportionately larger and more convex thorax 
separate it from E. ohliquus, whilst the small size and pale colour clearly distinguish 
it from H. lineatus. — Id. 
Note on Noniada xantlwsticta and Nomada mistura. — Nomada mistura, Smith 
is, I believe, the male of Nomada xantlwsticta, Kirby. Both appear at the same 
time of year, and frequent the same localities. Both Mr. Wailos and I have taken 
them flying about the burrows of Androena analis, near Haltwhistle, Northumber- 
land, in July. In the same month I again met with the Nomada near Naworth 
Castle, Cumberland, also in company with the same Andrasna. — Id. 
Note on Nomada horealis. — The handsome Nomada horealis, Zett., is in this 
district rather an abundant species, occurring wherever Andra^na Clarkella is to 
be found. The Nomada varies very much both in size and colour : I have examples 
not more than one-third the bulk of others, and in these small specimens consider- 
able variations of colouring arc to be found. Typically, the female has nearly a 
totally black head and thorax ; but specimens are not unfrequent which are nearly 
as much maculated with ferruginous as dark examples of ruficornis. The two 
species, however, may be easily separated by the spines on the posterior tibise : in 
ruficornis the tibice can scarcely bo said to be spinoso, having merely a row of weak 
pale-coloured hairs, whilst horealis has the tibia> thickly set with strong black 
spiny hairs. In the latter, too, the head and thorax are of a deeper black, much 
less pubescent, more glossy, and more distinctly impressed behind than in 
ruficornis. 
Can it be that the great difference in size of this species is caused by the size 
of the Andrccna to which it is attached? I have often taken it flying about 
colonies of A. albicans, and in other places where there was no trace of its usual 
patron, A. Clarkella ; and would thence infer that it is not exclusively attached to 
one, but adopts itself to several, species, as some of the other species of the genua 
are known to do. — Id. 
On the Bistrihution of Lcpido^ptera in Great Britain and Ireland, by Herbert Jenner 
Fust, .Tun., M.A. Transactions of the Entomological Society of London, 3rd Scries, 
vol. iv., part i, 18G8. (Tho Society, or Longmans & Co.) 
