180 BRITISH ICHNEUMONS. [ Trvphon 

usually black. Thorax gibbous and as broad as head, with no notauli; 
mesonotum punctulate, with griseous pubescence; metathorax convex, 
gradually declived apically, with ten usually distinct areae of which the 
areola is elongate ; spiracles suboval and usually large. Scutellum a little 
convex and laterally margined nearly to its abruptly declived apex. 
Abdomen almost petiolate, flavous or rarely red, with base more or less 
broadly and apex black; basal segment straight with spiracles a little 
before centre; second to fourth subparallel-sided. Legs flavidous or 
testaceous with their base, the hind and ‘base of anterior femora, black ; 
apices of hind tibiae more or less broadly concolorous; hind legs sub- 
elongate. Wings subflavescent; stigma always testaceous; nervellus 
intercepted at its centre. Length, 7—12 mm. 
At once known by its erect and apically entire frontal process, elongate 
cheeks, obsolete petiolar carinae and usually flavidous abdomen. Thom- 
son’s var. is a small form with the frons much smoother and legs darker. 
I have seen four remarkable specimens, captured by Mr. Ernest A. 
Elliott in Inverness on 26th July, 1901, which have the frontal horn 
conical and gradually tapering to its apex, with all the tibiae almost white, 
the central segments deep red with the second suffused or didymated with 
black, and the nervellus intercepted far below its centre; this form is 
worthy of at least varietal rank, I term it var. L7lott. He took the 
common form at Banchory and Ballater in September, rgro. 
Abundant throughout nearly the whole of Europe from June to Sep- 
tember; but nothing of its ecdysis is ye. known. Hope took both sexes 
about Netley in Shropshire; it is recorded from London, Devonshire and 
Hampshire by Stephens; Dorsetshire by Dale; Yorkshire by Wilson 
(Yorks Nat. 1881, p. 153); Cornwall by Marquand; Norfolk by Bridg- 
man; Wilts and south Wales by Marshall (coll.) ; and Scotland by James 
Wilson (Encycl. Brit. 7th ed. vol. ix, 1842). Ihave seen it from Cumber- 
land, Sussex, Warwick, Cambs., Gloucestershire, Surrey, Lancashire, 
Edinburgh ; Enniscorthy, Kilmore and Kenmare in Ireland, and Mr. 
Waterston took a female at Whiting Bay, Isle of Arran in September, 
1903. It hardly ever seems to appear before the end of August in Eng- 
land, and is distinctly uncommon in Suffolk, where I have not seen it for 
ten years; nor does Bignell include it in his full Devon list. Those I 
have met with at Barnby Broad, Henstead, Dodnash and Bentley Woods, 
and Foxhal! have invariably been sucking the flowers of Angelica sylves- 
/ris, between 11th and 26th September. ‘Tuck has found it at Tostock in 
the same county and the var. cera/ophorus on the coast at Aldeburgh. 
2. brachyacanthus, Gmel. 
Ichneumon brachyacanthus, Gmel. S. N. i. 2705, ¢. I. testaceus, Gmel. 
lib. cit. 2702 (nec Fab.), ¢. Tryphon brachyacanthus, Gr. I. E. ii. 242; Beitr. 
Ent. Schles. 1829, p. 11, pl. i, fig. 7; Ste. Ill. M. vii. 250; Zett. I. L. i. 388; 
Holmer. Sv. Ak. Hand]. 1855, p. 186; Voll. Pinac. pl xxii, fig. 2; Thoms. O. E. 
ix. 896, ¢ ?. 
A shining species with abdomen and coxae fulvous, and frons cornuted. 
Head posteriorly constricted, black with mouth red; frons deplanate, 
sparsely punctate with a short, apically obtuse and excised horn above 
the scrobes; face slightly convex and punctate ; clypeus short, subconvex 
and apically broadly rounded. ‘Thorax almost narrower than head, with 
mesonotum sparsely but strongly punctate; metathorax high, short and 
