NOTES ON BRACONID. 0 ii ba 
8. Rhogas tristiz, Wesm. 
Doubtless rare with us; there were, I believe, several un- 
named examples in the collection of the late Alfred Beaumont, 
who gave me a male, taken by him at Byfleet on July 22nd, 
1899. Marshall has a MS. note against this species: ‘‘ Bred by 
Bignell from E'pinephele ianira, L., July 17th”; it is ascribed to 
E. tithonus by the latter in 1901. 
9. Rhogas bicolor, Spin. 
By no means common. I have swept it from reeds at 
Covehithe Broad, in Suffolk, on September 15th, 1910, and at 
Carramore Lake at Louisburgh, in Mayo, during the preceding 
July in Ireland, where Beaumont took a couple of half-red 
females at Kilmore on September Ist, 1898. Another, with 39- 
jointed antenne, was bred from its host-lava’s skin at 7000 feet 
at Le Lautaret by Dr. Chapman in 1914, from Polyommatus 
eros. 
10. Rhogas geniculator, Nees. 
Certainly uncommon: Louisburgh on July 17th, 1910 (mis- 
named FR. gasterator by me at Proc. Royal Irish Acad. 1911, 
No. 24, p. 16); bred on June 30th, 1900, from Hulepia cribrum, 
Linn., at Bournemouth, by Rey. C. D. Ash. Another was raised 
from Orgyia aurolimbata at Vigo in mid-June, 1906, and three 
_ more from the same host in Spain during August, 19038, by Dr. 
Chapman. The species seems attached to woolly caterpillars, for 
I have seen one bred from small Arctia villica, taken on the 
cliffs at Beer, in South Devon, on September 1st, 1910, by Lyle ; 
and Bignell noticed that all the transformations take place 
within the skin of its hosts, to which he adds Odonestis potatoria, 
before the fourth moult. 
11. Rhogas vittiger, Wesm. 
The other British species unknown to me: it rests in our list 
upon a somewhat doubtful ancient specimen from Barnstaple in 
Marshall’s collection, though widely distributed in Northern 
Europe, extending south to Switzerland. 
12. Rhogas arcticus, Thoms. 
Not hitherto noted in Britain. I have no hesitancy in 
ascribing to this species a female swept at the Brandon Staunch, 
in Suffolk, on June 7th, 1908, and two ¢ ¢ from the same 
marshy spot on May 21st, 1911. Itis very like thecommon R. cir- 
cumscriptus but of stouter form with laterally more rounded 
abdomen, and differs in lacking all trace of metanotal trans- 
aciculation, but especially in having the second segment deeply 
impressed centrally on either side. 
