126 THE ENTOMOLOGIST. 
Norwich, of which he says (Tr. Norf. Nat. Soc., v, p. 65), ‘I 
believe it to be R. testaceus. . . . I think it must be testaceus.” 
I can at length confirm our claim to the species on the strength 
of a male bred from Eupithecia coronata in West Somerset on 
September 21st, 1908, by Mr. Henry Slater, of Withycombe. 
15. Rhogas circumscriptus, Nees. 
Our commonest species of the genus, extending throughout 
Europe to the neighbouring parts of both Africa and Asia. It 
is recorded from seven species of Noctuw, Geometre, and 
Tortrices, to which I can add only Coccyx strobillana, Linn., 
whence Barrett has raised it in England. This parasite, like the 
rest of the genus, as Bignell truly says, completes its metamor- 
phoses within the host, and the imago, on emerging, makes a hole 
in the back of the skin of the half-grown larva between the tenth 
and twelfth segments. Marshall in 1885 gives no localities ; 
I possess it from Bristol, where two were bred from Lepi- 
dopterous larve in 1901 and 1908 (Charbonnier) ; Devon (de la 
Garde) and Ivybridge there in August (Newbery); Felden in 
Herts. (Piffard) ; Blackheath in early July (Beaumont); Deal in ° 
May (Edw. Saunders); Tostock and Benacre Broad (Tuck) 
and Foxhall (Chitty), in Suffolk, where I have found it throughout 
the summer months—except July—from May 7th, when I bred 
a male from a dead Lepidopterous larva found under the bark of 
a pine gate-post at Bosmere Hall, Needham Market, on the 27th 
of the preceding month, up to October 24th; by sweeping reeds, 
rushes and long grass, always in marshy situations, at Foxhall, 
Kaston Broad in salt-marshes, Lakenheath, Bentley Woods, 
Tuddenham Fen, Nacton, once at light—the dark, not testaceous, 
form—in Southwold, Barnby and Covehithe Broads, Reydon 
marshes, Mildenhall, Henham, and Brandon. Elsewhere it has 
occurred to me at Hickling and Rockland in the Broads, Eaton 
near Norwich, and among marram grass on the Holme sand- 
hills in Norfolk; Chippenham Fen, in Cambs. ; in salt-marshes 
by the Wash at Gedney, in Lincs.; and on the Red Cliff at 
Sandown, in the Isle of Wight. Elliott has given it me from 
Birnam in Perth and Banchory in Kineardine; Dalglish from 
Giffnock; and Donisthorpe from Co. Kerry. I find the antennal 
joints to be 86, 37, 38, 39, 40, 41, 42 or 48. 
16. Rhogas nigricornis, Wesm. 
By no means ¢0 difficult to distinguish from the last species 
as authors lead one to believe. In addition to their distinctions, 
the second cubital cell is distinctly more parallel-sided, the 
stigma larger and protruding further from the line of the costa ; 
the hind femora are sometimes infuscate. Probably less rare 
than hitherto supposed and much mixed with R. circumscriptus, 
