Polyblastus | BRITISH ICHNEUMONS. 297 


centrally transversely impressed, twice broader than long and, like the 
third and base of fourth and apex of first, red; seventh of Q apically 
white; hypopygium large, vomeriform and broadly covering base of 
terebra. Legs not slender, red with apices of hind femora and _ usually 
whole or part of their coxae black; apical joint of hind tarsi hardly 
double length of penultimate; claws sparsely pectinate. Areolet entire ; 
radial nervure subarcuate; nervellus intercepted below its centre. 
Length, 5 mm. 
The ¢ has the face centrally black-lined and, Thomson says, the 
cheeks and coxae entirely black; Pfankuch found in 1906 that 7. dzscudp- 
us differed in no way from the type form, and I find nothing by which to 
differentiate Stephens’ three specimens of 7. /riscu/p/us in the British 
Museum. 
At once known from the next species in its much squarer head and 
narrower petiole. 
Silesia on umbells in September, and Italy (Grav.); Lapland (Zett.) ; 
Sweden early in August (Holmgr.); Prussia (Brisch.); France (Gaulle). 
“Scarce, found near London in June, and at Darenth Wood,” etc. (Ste- 
phens); I possess a long series in Capron’s collection from Surrey and 
have very occasionally taken it, always in June by sweeping herbage in 
the most boggy situations at Matley Bog in the New Forest, in Tudden- 
ham Fen and thrice at Brandon in Suffolk. 
8. pastoralis, Grav. 
Tryphon pastoralis, Gr. 1. E. ii. 248; i. 689; Ste. Ill. M. vii. 251, ¢ . Polyblastus 
mutabilis, Holmgr. Sv. Ak. Handl. 1855, p. 206; Brisch. Phys. Ges. K6énig. 1871, 
p.92; Schr. Nat. Ges. Danz. 1878, p.97, ¢ ?. 
A little shining, punctulate and black with the mouth, clypeus and 
tegulae flavidous; antennae ferrugineous beneath; legs and centre of 
abdomen red. Metathorax with three or five very distinct areae. Scu- 
tellum not pyramidal. Basal segment rugulose and somewhat shining, 
nearly as broad as metathorax, somewhat elevated basally and apically 
deplanate on either side, with stout and very distinct carinae; second 
segment transversely subimpressed centrally and, with the third and 
fourth, nearly entirely red. Legs red with the apices of hind femora and 
tibiae, and their tarsi, rarely nigrescent; all the coxae and trochanters 
red, rarely black or with the anterior apically flavidous; apical joint of 
hind tarsi hardly double length of penultimate. Areolet irregularly sub- 
petiolate, often strongly incomplete or even wanting; radial nervure 
gradually curved apically; nervellus intercepted below its centre. Length, 
4—5 mm. 
This species is known from its immediate allies by the rugulose, broad, 
laterally rounded and basally elevated first segment, and its stout carinae ; 
Pfankuch, who examined the types, says Gravenhorst was in error in 
describing the basal segment as smooth, and entirely synonymises Holm- 
gren’s species with it, since its author had brought it forward as distinct 
solely upon this structural basis. 
A 9? from Silesia (Grav.); Lapland and Sweden (Holmgr.); bred from 
larvae of Nematus myosotidis in Prussia (Brisch.); France (Gaulle). First 
taken by Hope at Netley, and said to be not common around London in 
June by Stephens; it is recorded from Nunton and Botusfleming by Mar- 
shall, Lands End by Marquand, St. Issey in Cornwall in Davies’ coll., 
