Leal 
Sphecophaga | BRITISH IGHNEUMONS. 13 

raised from this parasite’s cocoons (Kirby, Bridgewater Treatise, 1835, ii. 
334; Hope, Proc. Ent. Soc. 1838, p. iti; Stone, /.c. 1865, p. 65); and Donis- 
thorpe has bred a Braconid, referred to by me (E. M. M. 1900, p. 123), 
belonging to the Adysides but almost certainly attacking the Dipterous 
larvae, mentioned by him (Ent. Rec. 1898, p. 307), and not our ich- 
neumon. 
S. vesparum has been bred from the nests of Vespa vulgaris, V. rufa and 
V. germanica, though commonest in Britain in those of the first named. 
It appears to be but little known on the Continent, where it has a some- 
what restricted range from East Gothland through Germany and Switzer- 
land to France.’ With us it is doubtless commoner than at present 
suspected; I have already recorded it from Cumprall Hall (Curtis) ; near 
Manchester (R. Wood); South Devon (Bignell); Norwich (Bridgman) ; 
Hereford (Chapman); Yorkshire (Smith, Brit. Acul. Hym. 1858, 218); 
Chiddingford (Donisthorpe); Boxhill (Beaumont) ; and Wellington Col- 
lege, Reading (Hamm). I possess examples from Shere in Surrey (Cap- 
ron); Kings Lynn, Norfolk, June, 1903 (Atmore) ; Wyre Forest, June, 
1893 (Martineau) ; several in Mr. Adams’ “trap” at Lyndhurst, June, 
1907 (Elliott); Bickleigh in Devon, 23rd May (Bignell); Painswick in 
Gloucester (Watkins) ; and myself took a female on 15th June, 1898, on 
my study window in Ipswich. 
PROTARCHUS, Forster. 
Forst. Verh. pr. Rhein]. 1868, p. 201; Thoms. O. E. xvii. 1872. 
Head and thorax rugulosely punctate and coarsely pubescent ; eyes not 
internally emarginate, frons impressed, mandibular teeth of subequal 
length, short and obtuse. Metathorax not completely areated, sub- 
abruptly declived apically, with petiolar area extending nearly to its 
centre and longitudinally carinate to apex; metapleurae dentate before 
hind coxae. Scutellum and postscutellum convex and pale. First seg- 
ment not basally dentate laterally, a little explanate throughout, bicarinate 
to far beyond its centre, with prominent spiracles before that point. Legs 
elongate. Nervelet distinct and elongate; upper basal nervure strongly 
oblique and apically straight; nervellus postfurcal, intercepted above its 
centre. Antennae and often metanotum red. 
The large size of its species, their brilliant colouration and rugulose 
sculpture, render this genus distinct. 
1. rufus, Grav. 
Tryphon rufus, Gr. I. E. ii. 200; Ratz. Ichn. d. Forst. ii. 117, ?. T. rufulus, 
Ste. Ill. M. vii. 244, pl. xxxvi, fig. 3, ¢. T. conspicuus, Ste. lib. cit. 244, ?. 
Mesoleius rufus, Holmgr. Sv. Ak. Handl. 1855, p. 133; /.c. 1876, p.4; Brisch. 
Schr. Nat. Ges. Danz. 1878, p. 77, ¢; Voll. Pinac. pl. xxiii, fig. 1, ¢. Protarchus 
rufus, Thoms. O. E. xvii. 1872, ?. 
Very little shining, black with mouth, face, humeral and mesopleural 
marks, and scutellum flavous. Clypeus apically depressed; all the orbits 
and antennae, except upper side of scape, orange. Metathorax usually 
more or less broadly testaceous on either side of disc ; its areae irregular. 
