300 BRITISH ICHNEUMONS. [Polyblastus 
segment gradually dilated towards the depressed apex, with not very 
distinct carinae extending hardly beyond its centre; second segment cen- 
trally transversely impressed and, like the transverse third and fourth, 
red; hypopygium large, vomeriform and broadly covering base of terebra. 
Legs red with whole or apices of hind femora and apices of their flavidous 
tibiae alone infuscate; apical joint of hind tarsi hardly double length of 
penultimate; claws sparsely pectinate. Areolet wanting; radial nervure 
apically curved; nervellus intercepted below its centre. Length, 5—6 mm. 
Known by its finely pectinate claws, centrally red abdomen, deplanate 
and entirely margined scutellum, and broadly red legs. The flagellum in 
both sexes is somewhat distinctly explanate in the centre. 
It ranges from Lapland, through Sweden and Prussia, to France, and 
has not been bred. The only British record is by Bridgman, who says 
(Trans. Norf. Soc. v, p. 627) that he has captured an insect at Brundall 
near Norwich, which he considered a variety of this species. It is, how- 
ever, by no means uncommon with us, occurring on hazel bushes in woods 
and the flowers of Angelica sylvestris from 16th June to 5th September; 
Dulwich (Marshall MS.); both sexes at Felden in Herts (Piffard); Dela- 
mere Forest in 1903 (Tomlin); Chatham in June, 1892 (de la Garde); 
Lands End (Marquand); Govilon in Wales (Marshall coll.); it has 
occurred to me about Ipswich at Foxhall and Bentley Woods. 
12. pinguis, Grav. 
Ichneumon pinguis, Gr. Mem. Ac. Sc. Torin. 1820, p. 373, ¢ ¢. Tryphon 
pinguis, Gr. I. E. ii. 150; Ste. Ill. M. vii.235; Fonsc. Ann. Soc. Fr. 1849, 
p.219, ¢ ¢. Polyblastus pinguis, Htg. Wiegm. Arch. 1837, p.155; Schidd. 
Guér. Mag. 1839, p.12, ¢; Nat. Tidskr. 1847, p.98; Holmgr. Sv. Ak. Handl. 
1855, p. 210; Brisch. Schr. Nat. Ges. Danz. 1878, p.98, 3 ¢. 
Shining, pubescent, not finely punctate, black with the mouth, scape 
beneath and most of the legs flavous. Clypeus impressed before its apex ; 
apices of cheeks reflexed and in @ produced. Antennae filiform and 
hardly shorter than body, usually ferrugineous beneath. Metathorax with 
the areae subobsolete, indeterminate and transverse ; petiolar area sub- 
discreted. Scutellum convex, but not pyramidal. Basal segment broad, 
gradually dilated towards its apex, sparsely punctate, with obsolete and 
basal carinae ; apical margin of all the segments red; terebra black and 
very shortly exserted. Legs not stout, flavous with coxae, most of hind 
femora and apices both of their tibiae and of their tarsal joints, black ; 
intermediate femora often infuscate beneath. Areolet irregularly petio- 
late or subpetiolate; tegulae stramineous; nervellus intercepted a little 
below its centre. Length, 6-—8 mm. 
This is a very distinct insect and in its black abdomen, elongate 
pubescence, flavidous legs and obsolete metanotal areae only to be con- 
fused with P. Westringi, though much more convex with the incisures 
more distinctly impressed than that species. 
Austria, Germany, Piedmont (Grav.), Aix in spring (Fonsc.), Denmark 
(Schiéd.), Sweden (Holmgr.), and Prussia (Brisch.). ‘Not common: 
taken at Darenth wood in May, and in other places within the metro- 
politan district” (Stephens); common in Norfolk (Bridgman); Shere in 
Surrey (Capron) ; Tuddenham Fen in Suffolk on 22nd June, 1906 (Nurse, 
E.M.M. 1907, p. 86). I consider it a rare species and have but once met 
with it, on 20th July, 1901, when two females occurred on flowers of 
Heracleum sphondylium on the Southwold cliffs of the Suffolk coast. 
